diff --git a/internal/protocoltest/awsrestjson/types/errors.go b/internal/protocoltest/awsrestjson/types/errors.go
index 6cd88ab32b9..bf19ebae74b 100644
--- a/internal/protocoltest/awsrestjson/types/errors.go
+++ b/internal/protocoltest/awsrestjson/types/errors.go
@@ -30,7 +30,7 @@ func (e *ComplexError) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ComplexError) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ComplexError"
 	}
 	return *e.ErrorCodeOverride
@@ -57,7 +57,7 @@ func (e *FooError) ErrorMessage() string {
 	return *e.Message
 }
 func (e *FooError) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "FooError"
 	}
 	return *e.ErrorCodeOverride
@@ -83,7 +83,7 @@ func (e *InvalidGreeting) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidGreeting) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidGreeting"
 	}
 	return *e.ErrorCodeOverride
diff --git a/internal/protocoltest/ec2query/types/errors.go b/internal/protocoltest/ec2query/types/errors.go
index c6bbc63725e..c5ec4c022ca 100644
--- a/internal/protocoltest/ec2query/types/errors.go
+++ b/internal/protocoltest/ec2query/types/errors.go
@@ -29,7 +29,7 @@ func (e *ComplexError) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ComplexError) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ComplexError"
 	}
 	return *e.ErrorCodeOverride
@@ -55,7 +55,7 @@ func (e *InvalidGreeting) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidGreeting) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidGreeting"
 	}
 	return *e.ErrorCodeOverride
diff --git a/internal/protocoltest/jsonrpc/types/errors.go b/internal/protocoltest/jsonrpc/types/errors.go
index 8ab90b2ea04..f1e3bcfc9ba 100644
--- a/internal/protocoltest/jsonrpc/types/errors.go
+++ b/internal/protocoltest/jsonrpc/types/errors.go
@@ -29,7 +29,7 @@ func (e *ComplexError) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ComplexError) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ComplexError"
 	}
 	return *e.ErrorCodeOverride
@@ -61,7 +61,7 @@ func (e *ErrorWithMembers) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ErrorWithMembers) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ErrorWithMembers"
 	}
 	return *e.ErrorCodeOverride
@@ -86,7 +86,7 @@ func (e *ErrorWithoutMembers) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ErrorWithoutMembers) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ErrorWithoutMembers"
 	}
 	return *e.ErrorCodeOverride
@@ -113,7 +113,7 @@ func (e *FooError) ErrorMessage() string {
 	return *e.Message
 }
 func (e *FooError) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "FooError"
 	}
 	return *e.ErrorCodeOverride
@@ -139,7 +139,7 @@ func (e *InvalidGreeting) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidGreeting) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidGreeting"
 	}
 	return *e.ErrorCodeOverride
diff --git a/internal/protocoltest/jsonrpc10/types/errors.go b/internal/protocoltest/jsonrpc10/types/errors.go
index ad5a769bd5e..1646c81977d 100644
--- a/internal/protocoltest/jsonrpc10/types/errors.go
+++ b/internal/protocoltest/jsonrpc10/types/errors.go
@@ -29,7 +29,7 @@ func (e *ComplexError) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ComplexError) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ComplexError"
 	}
 	return *e.ErrorCodeOverride
@@ -56,7 +56,7 @@ func (e *FooError) ErrorMessage() string {
 	return *e.Message
 }
 func (e *FooError) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "FooError"
 	}
 	return *e.ErrorCodeOverride
@@ -82,7 +82,7 @@ func (e *InvalidGreeting) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidGreeting) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidGreeting"
 	}
 	return *e.ErrorCodeOverride
diff --git a/internal/protocoltest/query/types/errors.go b/internal/protocoltest/query/types/errors.go
index 7b41a08334f..66e364ceb70 100644
--- a/internal/protocoltest/query/types/errors.go
+++ b/internal/protocoltest/query/types/errors.go
@@ -29,7 +29,7 @@ func (e *ComplexError) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ComplexError) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ComplexError"
 	}
 	return *e.ErrorCodeOverride
@@ -54,7 +54,7 @@ func (e *CustomCodeError) ErrorMessage() string {
 	return *e.Message
 }
 func (e *CustomCodeError) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "Customized"
 	}
 	return *e.ErrorCodeOverride
@@ -80,7 +80,7 @@ func (e *InvalidGreeting) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidGreeting) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidGreeting"
 	}
 	return *e.ErrorCodeOverride
diff --git a/internal/protocoltest/restxml/types/errors.go b/internal/protocoltest/restxml/types/errors.go
index f02dd6e8686..b36241acac6 100644
--- a/internal/protocoltest/restxml/types/errors.go
+++ b/internal/protocoltest/restxml/types/errors.go
@@ -30,7 +30,7 @@ func (e *ComplexError) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ComplexError) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ComplexError"
 	}
 	return *e.ErrorCodeOverride
@@ -56,7 +56,7 @@ func (e *InvalidGreeting) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidGreeting) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidGreeting"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/accessanalyzer/types/errors.go b/service/accessanalyzer/types/errors.go
index d89368b19c1..637017efe6f 100644
--- a/service/accessanalyzer/types/errors.go
+++ b/service/accessanalyzer/types/errors.go
@@ -26,7 +26,7 @@ func (e *AccessDeniedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AccessDeniedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AccessDeniedException"
 	}
 	return *e.ErrorCodeOverride
@@ -55,7 +55,7 @@ func (e *ConflictException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ConflictException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ConflictException"
 	}
 	return *e.ErrorCodeOverride
@@ -83,7 +83,7 @@ func (e *InternalServerException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalServerException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalServerException"
 	}
 	return *e.ErrorCodeOverride
@@ -112,7 +112,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -141,7 +141,7 @@ func (e *ServiceQuotaExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ServiceQuotaExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ServiceQuotaExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -169,7 +169,7 @@ func (e *ThrottlingException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ThrottlingException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ThrottlingException"
 	}
 	return *e.ErrorCodeOverride
@@ -198,7 +198,7 @@ func (e *ValidationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ValidationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ValidationException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/account/types/errors.go b/service/account/types/errors.go
index 1126f74125f..b05e7963fdc 100644
--- a/service/account/types/errors.go
+++ b/service/account/types/errors.go
@@ -27,7 +27,7 @@ func (e *AccessDeniedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AccessDeniedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AccessDeniedException"
 	}
 	return *e.ErrorCodeOverride
@@ -55,7 +55,7 @@ func (e *ConflictException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ConflictException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ConflictException"
 	}
 	return *e.ErrorCodeOverride
@@ -82,7 +82,7 @@ func (e *InternalServerException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalServerException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalServerException"
 	}
 	return *e.ErrorCodeOverride
@@ -108,7 +108,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -135,7 +135,7 @@ func (e *TooManyRequestsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TooManyRequestsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TooManyRequestsException"
 	}
 	return *e.ErrorCodeOverride
@@ -164,7 +164,7 @@ func (e *ValidationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ValidationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ValidationException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/acm/types/errors.go b/service/acm/types/errors.go
index 576de9cb9fe..c7804217171 100644
--- a/service/acm/types/errors.go
+++ b/service/acm/types/errors.go
@@ -26,7 +26,7 @@ func (e *AccessDeniedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AccessDeniedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AccessDeniedException"
 	}
 	return *e.ErrorCodeOverride
@@ -53,7 +53,7 @@ func (e *ConflictException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ConflictException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ConflictException"
 	}
 	return *e.ErrorCodeOverride
@@ -79,7 +79,7 @@ func (e *InvalidArgsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidArgsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidArgsException"
 	}
 	return *e.ErrorCodeOverride
@@ -105,7 +105,7 @@ func (e *InvalidArnException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidArnException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidArnException"
 	}
 	return *e.ErrorCodeOverride
@@ -131,7 +131,7 @@ func (e *InvalidDomainValidationOptionsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidDomainValidationOptionsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidDomainValidationOptionsException"
 	}
 	return *e.ErrorCodeOverride
@@ -159,7 +159,7 @@ func (e *InvalidParameterException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidParameterException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidParameterException"
 	}
 	return *e.ErrorCodeOverride
@@ -185,7 +185,7 @@ func (e *InvalidStateException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidStateException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidStateException"
 	}
 	return *e.ErrorCodeOverride
@@ -212,7 +212,7 @@ func (e *InvalidTagException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidTagException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidTagException"
 	}
 	return *e.ErrorCodeOverride
@@ -238,7 +238,7 @@ func (e *LimitExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *LimitExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "LimitExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -265,7 +265,7 @@ func (e *RequestInProgressException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *RequestInProgressException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "RequestInProgressException"
 	}
 	return *e.ErrorCodeOverride
@@ -292,7 +292,7 @@ func (e *ResourceInUseException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceInUseException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceInUseException"
 	}
 	return *e.ErrorCodeOverride
@@ -319,7 +319,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -345,7 +345,7 @@ func (e *TagPolicyException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TagPolicyException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TagPolicyException"
 	}
 	return *e.ErrorCodeOverride
@@ -371,7 +371,7 @@ func (e *ThrottlingException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ThrottlingException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ThrottlingException"
 	}
 	return *e.ErrorCodeOverride
@@ -397,7 +397,7 @@ func (e *TooManyTagsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TooManyTagsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TooManyTagsException"
 	}
 	return *e.ErrorCodeOverride
@@ -424,7 +424,7 @@ func (e *ValidationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ValidationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ValidationException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/acmpca/types/errors.go b/service/acmpca/types/errors.go
index 7acf435bc4a..31cf11438bb 100644
--- a/service/acmpca/types/errors.go
+++ b/service/acmpca/types/errors.go
@@ -27,7 +27,7 @@ func (e *CertificateMismatchException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *CertificateMismatchException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "CertificateMismatchException"
 	}
 	return *e.ErrorCodeOverride
@@ -53,7 +53,7 @@ func (e *ConcurrentModificationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ConcurrentModificationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ConcurrentModificationException"
 	}
 	return *e.ErrorCodeOverride
@@ -79,7 +79,7 @@ func (e *InvalidArgsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidArgsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidArgsException"
 	}
 	return *e.ErrorCodeOverride
@@ -105,7 +105,7 @@ func (e *InvalidArnException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidArnException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidArnException"
 	}
 	return *e.ErrorCodeOverride
@@ -133,7 +133,7 @@ func (e *InvalidNextTokenException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidNextTokenException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidNextTokenException"
 	}
 	return *e.ErrorCodeOverride
@@ -162,7 +162,7 @@ func (e *InvalidPolicyException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidPolicyException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidPolicyException"
 	}
 	return *e.ErrorCodeOverride
@@ -188,7 +188,7 @@ func (e *InvalidRequestException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidRequestException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidRequestException"
 	}
 	return *e.ErrorCodeOverride
@@ -214,7 +214,7 @@ func (e *InvalidStateException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidStateException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidStateException"
 	}
 	return *e.ErrorCodeOverride
@@ -241,7 +241,7 @@ func (e *InvalidTagException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidTagException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidTagException"
 	}
 	return *e.ErrorCodeOverride
@@ -268,7 +268,7 @@ func (e *LimitExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *LimitExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "LimitExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -296,7 +296,7 @@ func (e *LockoutPreventedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *LockoutPreventedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "LockoutPreventedException"
 	}
 	return *e.ErrorCodeOverride
@@ -322,7 +322,7 @@ func (e *MalformedCertificateException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *MalformedCertificateException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "MalformedCertificateException"
 	}
 	return *e.ErrorCodeOverride
@@ -348,7 +348,7 @@ func (e *MalformedCSRException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *MalformedCSRException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "MalformedCSRException"
 	}
 	return *e.ErrorCodeOverride
@@ -374,7 +374,7 @@ func (e *PermissionAlreadyExistsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *PermissionAlreadyExistsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "PermissionAlreadyExistsException"
 	}
 	return *e.ErrorCodeOverride
@@ -400,7 +400,7 @@ func (e *RequestAlreadyProcessedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *RequestAlreadyProcessedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "RequestAlreadyProcessedException"
 	}
 	return *e.ErrorCodeOverride
@@ -426,7 +426,7 @@ func (e *RequestFailedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *RequestFailedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "RequestFailedException"
 	}
 	return *e.ErrorCodeOverride
@@ -452,7 +452,7 @@ func (e *RequestInProgressException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *RequestInProgressException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "RequestInProgressException"
 	}
 	return *e.ErrorCodeOverride
@@ -479,7 +479,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -506,7 +506,7 @@ func (e *TooManyTagsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TooManyTagsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TooManyTagsException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/alexaforbusiness/types/errors.go b/service/alexaforbusiness/types/errors.go
index 4f00723b21b..73475d5ce03 100644
--- a/service/alexaforbusiness/types/errors.go
+++ b/service/alexaforbusiness/types/errors.go
@@ -26,7 +26,7 @@ func (e *AlreadyExistsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AlreadyExistsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AlreadyExistsException"
 	}
 	return *e.ErrorCodeOverride
@@ -52,7 +52,7 @@ func (e *ConcurrentModificationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ConcurrentModificationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ConcurrentModificationException"
 	}
 	return *e.ErrorCodeOverride
@@ -79,7 +79,7 @@ func (e *DeviceNotRegisteredException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DeviceNotRegisteredException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DeviceNotRegisteredException"
 	}
 	return *e.ErrorCodeOverride
@@ -105,7 +105,7 @@ func (e *InvalidCertificateAuthorityException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidCertificateAuthorityException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidCertificateAuthorityException"
 	}
 	return *e.ErrorCodeOverride
@@ -133,7 +133,7 @@ func (e *InvalidDeviceException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidDeviceException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidDeviceException"
 	}
 	return *e.ErrorCodeOverride
@@ -159,7 +159,7 @@ func (e *InvalidSecretsManagerResourceException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidSecretsManagerResourceException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidSecretsManagerResourceException"
 	}
 	return *e.ErrorCodeOverride
@@ -187,7 +187,7 @@ func (e *InvalidServiceLinkedRoleStateException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidServiceLinkedRoleStateException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidServiceLinkedRoleStateException"
 	}
 	return *e.ErrorCodeOverride
@@ -215,7 +215,7 @@ func (e *InvalidUserStatusException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidUserStatusException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidUserStatusException"
 	}
 	return *e.ErrorCodeOverride
@@ -241,7 +241,7 @@ func (e *LimitExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *LimitExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "LimitExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -267,7 +267,7 @@ func (e *NameInUseException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *NameInUseException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "NameInUseException"
 	}
 	return *e.ErrorCodeOverride
@@ -293,7 +293,7 @@ func (e *NotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *NotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "NotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -319,7 +319,7 @@ func (e *ResourceAssociatedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceAssociatedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceAssociatedException"
 	}
 	return *e.ErrorCodeOverride
@@ -347,7 +347,7 @@ func (e *ResourceInUseException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceInUseException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceInUseException"
 	}
 	return *e.ErrorCodeOverride
@@ -373,7 +373,7 @@ func (e *SkillNotLinkedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *SkillNotLinkedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "SkillNotLinkedException"
 	}
 	return *e.ErrorCodeOverride
@@ -400,7 +400,7 @@ func (e *UnauthorizedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *UnauthorizedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "UnauthorizedException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/amp/types/errors.go b/service/amp/types/errors.go
index 48fd209c757..8fc23fdd361 100644
--- a/service/amp/types/errors.go
+++ b/service/amp/types/errors.go
@@ -26,7 +26,7 @@ func (e *AccessDeniedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AccessDeniedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AccessDeniedException"
 	}
 	return *e.ErrorCodeOverride
@@ -55,7 +55,7 @@ func (e *ConflictException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ConflictException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ConflictException"
 	}
 	return *e.ErrorCodeOverride
@@ -83,7 +83,7 @@ func (e *InternalServerException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalServerException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalServerException"
 	}
 	return *e.ErrorCodeOverride
@@ -112,7 +112,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -143,7 +143,7 @@ func (e *ServiceQuotaExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ServiceQuotaExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ServiceQuotaExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -173,7 +173,7 @@ func (e *ThrottlingException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ThrottlingException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ThrottlingException"
 	}
 	return *e.ErrorCodeOverride
@@ -202,7 +202,7 @@ func (e *ValidationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ValidationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ValidationException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/amplify/types/errors.go b/service/amplify/types/errors.go
index 57fcff854a6..bc14f1a0a0c 100644
--- a/service/amplify/types/errors.go
+++ b/service/amplify/types/errors.go
@@ -26,7 +26,7 @@ func (e *BadRequestException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *BadRequestException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "BadRequestException"
 	}
 	return *e.ErrorCodeOverride
@@ -52,7 +52,7 @@ func (e *DependentServiceFailureException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DependentServiceFailureException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DependentServiceFailureException"
 	}
 	return *e.ErrorCodeOverride
@@ -78,7 +78,7 @@ func (e *InternalFailureException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalFailureException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalFailureException"
 	}
 	return *e.ErrorCodeOverride
@@ -104,7 +104,7 @@ func (e *LimitExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *LimitExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "LimitExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -130,7 +130,7 @@ func (e *NotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *NotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "NotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -158,7 +158,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -184,7 +184,7 @@ func (e *UnauthorizedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *UnauthorizedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "UnauthorizedException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/amplifybackend/types/errors.go b/service/amplifybackend/types/errors.go
index 7a122fd6411..78153643503 100644
--- a/service/amplifybackend/types/errors.go
+++ b/service/amplifybackend/types/errors.go
@@ -26,7 +26,7 @@ func (e *BadRequestException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *BadRequestException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "BadRequestException"
 	}
 	return *e.ErrorCodeOverride
@@ -52,7 +52,7 @@ func (e *GatewayTimeoutException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *GatewayTimeoutException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "GatewayTimeoutException"
 	}
 	return *e.ErrorCodeOverride
@@ -80,7 +80,7 @@ func (e *NotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *NotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "NotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -108,7 +108,7 @@ func (e *TooManyRequestsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TooManyRequestsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TooManyRequestsException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/amplifyuibuilder/types/errors.go b/service/amplifyuibuilder/types/errors.go
index c898aea6d28..c4abb511819 100644
--- a/service/amplifyuibuilder/types/errors.go
+++ b/service/amplifyuibuilder/types/errors.go
@@ -26,7 +26,7 @@ func (e *InternalServerException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalServerException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalServerException"
 	}
 	return *e.ErrorCodeOverride
@@ -52,7 +52,7 @@ func (e *InvalidParameterException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidParameterException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidParameterException"
 	}
 	return *e.ErrorCodeOverride
@@ -78,7 +78,7 @@ func (e *ResourceConflictException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceConflictException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceConflictException"
 	}
 	return *e.ErrorCodeOverride
@@ -104,7 +104,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -132,7 +132,7 @@ func (e *ServiceQuotaExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ServiceQuotaExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ServiceQuotaExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -158,7 +158,7 @@ func (e *UnauthorizedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *UnauthorizedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "UnauthorizedException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/apigateway/types/errors.go b/service/apigateway/types/errors.go
index 1709f433456..6cb3d9146bf 100644
--- a/service/apigateway/types/errors.go
+++ b/service/apigateway/types/errors.go
@@ -27,7 +27,7 @@ func (e *BadRequestException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *BadRequestException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "BadRequestException"
 	}
 	return *e.ErrorCodeOverride
@@ -54,7 +54,7 @@ func (e *ConflictException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ConflictException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ConflictException"
 	}
 	return *e.ErrorCodeOverride
@@ -82,7 +82,7 @@ func (e *LimitExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *LimitExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "LimitExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -108,7 +108,7 @@ func (e *NotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *NotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "NotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -137,7 +137,7 @@ func (e *ServiceUnavailableException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ServiceUnavailableException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ServiceUnavailableException"
 	}
 	return *e.ErrorCodeOverride
@@ -166,7 +166,7 @@ func (e *TooManyRequestsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TooManyRequestsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TooManyRequestsException"
 	}
 	return *e.ErrorCodeOverride
@@ -192,7 +192,7 @@ func (e *UnauthorizedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *UnauthorizedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "UnauthorizedException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/apigatewaymanagementapi/types/errors.go b/service/apigatewaymanagementapi/types/errors.go
index 8fc693d81f2..e19dd3addbd 100644
--- a/service/apigatewaymanagementapi/types/errors.go
+++ b/service/apigatewaymanagementapi/types/errors.go
@@ -26,7 +26,7 @@ func (e *ForbiddenException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ForbiddenException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ForbiddenException"
 	}
 	return *e.ErrorCodeOverride
@@ -52,7 +52,7 @@ func (e *GoneException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *GoneException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "GoneException"
 	}
 	return *e.ErrorCodeOverride
@@ -79,7 +79,7 @@ func (e *LimitExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *LimitExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "LimitExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -105,7 +105,7 @@ func (e *PayloadTooLargeException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *PayloadTooLargeException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "PayloadTooLargeException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/apigatewayv2/types/errors.go b/service/apigatewayv2/types/errors.go
index bded1880d05..9ee51572fa3 100644
--- a/service/apigatewayv2/types/errors.go
+++ b/service/apigatewayv2/types/errors.go
@@ -25,7 +25,7 @@ func (e *AccessDeniedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AccessDeniedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AccessDeniedException"
 	}
 	return *e.ErrorCodeOverride
@@ -52,7 +52,7 @@ func (e *BadRequestException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *BadRequestException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "BadRequestException"
 	}
 	return *e.ErrorCodeOverride
@@ -80,7 +80,7 @@ func (e *ConflictException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ConflictException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ConflictException"
 	}
 	return *e.ErrorCodeOverride
@@ -109,7 +109,7 @@ func (e *NotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *NotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "NotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -137,7 +137,7 @@ func (e *TooManyRequestsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TooManyRequestsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TooManyRequestsException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/appconfig/types/errors.go b/service/appconfig/types/errors.go
index 52a154c1ca7..a3dcf568f20 100644
--- a/service/appconfig/types/errors.go
+++ b/service/appconfig/types/errors.go
@@ -30,7 +30,7 @@ func (e *BadRequestException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *BadRequestException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "BadRequestException"
 	}
 	return *e.ErrorCodeOverride
@@ -57,7 +57,7 @@ func (e *ConflictException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ConflictException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ConflictException"
 	}
 	return *e.ErrorCodeOverride
@@ -83,7 +83,7 @@ func (e *InternalServerException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalServerException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalServerException"
 	}
 	return *e.ErrorCodeOverride
@@ -113,7 +113,7 @@ func (e *PayloadTooLargeException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *PayloadTooLargeException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "PayloadTooLargeException"
 	}
 	return *e.ErrorCodeOverride
@@ -141,7 +141,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -168,7 +168,7 @@ func (e *ServiceQuotaExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ServiceQuotaExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ServiceQuotaExceededException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/appconfigdata/types/errors.go b/service/appconfigdata/types/errors.go
index 30269cd96d9..af1fa9924c5 100644
--- a/service/appconfigdata/types/errors.go
+++ b/service/appconfigdata/types/errors.go
@@ -29,7 +29,7 @@ func (e *BadRequestException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *BadRequestException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "BadRequestException"
 	}
 	return *e.ErrorCodeOverride
@@ -55,7 +55,7 @@ func (e *InternalServerException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalServerException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalServerException"
 	}
 	return *e.ErrorCodeOverride
@@ -84,7 +84,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -110,7 +110,7 @@ func (e *ThrottlingException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ThrottlingException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ThrottlingException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/appflow/types/errors.go b/service/appflow/types/errors.go
index da11b1cfe77..656175c71c5 100644
--- a/service/appflow/types/errors.go
+++ b/service/appflow/types/errors.go
@@ -26,7 +26,7 @@ func (e *AccessDeniedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AccessDeniedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AccessDeniedException"
 	}
 	return *e.ErrorCodeOverride
@@ -54,7 +54,7 @@ func (e *ConflictException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ConflictException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ConflictException"
 	}
 	return *e.ErrorCodeOverride
@@ -80,7 +80,7 @@ func (e *ConnectorAuthenticationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ConnectorAuthenticationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ConnectorAuthenticationException"
 	}
 	return *e.ErrorCodeOverride
@@ -106,7 +106,7 @@ func (e *ConnectorServerException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ConnectorServerException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ConnectorServerException"
 	}
 	return *e.ErrorCodeOverride
@@ -133,7 +133,7 @@ func (e *InternalServerException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalServerException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalServerException"
 	}
 	return *e.ErrorCodeOverride
@@ -160,7 +160,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -187,7 +187,7 @@ func (e *ServiceQuotaExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ServiceQuotaExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ServiceQuotaExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -214,7 +214,7 @@ func (e *ThrottlingException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ThrottlingException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ThrottlingException"
 	}
 	return *e.ErrorCodeOverride
@@ -240,7 +240,7 @@ func (e *UnsupportedOperationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *UnsupportedOperationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "UnsupportedOperationException"
 	}
 	return *e.ErrorCodeOverride
@@ -266,7 +266,7 @@ func (e *ValidationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ValidationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ValidationException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/appintegrations/types/errors.go b/service/appintegrations/types/errors.go
index 95f902b30ef..9c2391cfb0f 100644
--- a/service/appintegrations/types/errors.go
+++ b/service/appintegrations/types/errors.go
@@ -26,7 +26,7 @@ func (e *AccessDeniedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AccessDeniedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AccessDeniedException"
 	}
 	return *e.ErrorCodeOverride
@@ -52,7 +52,7 @@ func (e *DuplicateResourceException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DuplicateResourceException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DuplicateResourceException"
 	}
 	return *e.ErrorCodeOverride
@@ -78,7 +78,7 @@ func (e *InternalServiceError) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalServiceError) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalServiceError"
 	}
 	return *e.ErrorCodeOverride
@@ -104,7 +104,7 @@ func (e *InvalidRequestException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidRequestException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidRequestException"
 	}
 	return *e.ErrorCodeOverride
@@ -130,7 +130,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -156,7 +156,7 @@ func (e *ResourceQuotaExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceQuotaExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceQuotaExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -182,7 +182,7 @@ func (e *ThrottlingException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ThrottlingException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ThrottlingException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/applicationautoscaling/types/errors.go b/service/applicationautoscaling/types/errors.go
index 7751227f32c..30444478919 100644
--- a/service/applicationautoscaling/types/errors.go
+++ b/service/applicationautoscaling/types/errors.go
@@ -27,7 +27,7 @@ func (e *ConcurrentUpdateException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ConcurrentUpdateException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ConcurrentUpdateException"
 	}
 	return *e.ErrorCodeOverride
@@ -58,7 +58,7 @@ func (e *FailedResourceAccessException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *FailedResourceAccessException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "FailedResourceAccessException"
 	}
 	return *e.ErrorCodeOverride
@@ -84,7 +84,7 @@ func (e *InternalServiceException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalServiceException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalServiceException"
 	}
 	return *e.ErrorCodeOverride
@@ -110,7 +110,7 @@ func (e *InvalidNextTokenException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidNextTokenException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidNextTokenException"
 	}
 	return *e.ErrorCodeOverride
@@ -138,7 +138,7 @@ func (e *LimitExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *LimitExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "LimitExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -168,7 +168,7 @@ func (e *ObjectNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ObjectNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ObjectNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -195,7 +195,7 @@ func (e *ValidationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ValidationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ValidationException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/applicationcostprofiler/types/errors.go b/service/applicationcostprofiler/types/errors.go
index ae5b1108faa..d619c2d074c 100644
--- a/service/applicationcostprofiler/types/errors.go
+++ b/service/applicationcostprofiler/types/errors.go
@@ -26,7 +26,7 @@ func (e *AccessDeniedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AccessDeniedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AccessDeniedException"
 	}
 	return *e.ErrorCodeOverride
@@ -52,7 +52,7 @@ func (e *InternalServerException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalServerException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalServerException"
 	}
 	return *e.ErrorCodeOverride
@@ -78,7 +78,7 @@ func (e *ServiceQuotaExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ServiceQuotaExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ServiceQuotaExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -105,7 +105,7 @@ func (e *ThrottlingException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ThrottlingException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ThrottlingException"
 	}
 	return *e.ErrorCodeOverride
@@ -131,7 +131,7 @@ func (e *ValidationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ValidationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ValidationException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/applicationdiscoveryservice/types/errors.go b/service/applicationdiscoveryservice/types/errors.go
index a48b8cfc6ae..12d775e5a5a 100644
--- a/service/applicationdiscoveryservice/types/errors.go
+++ b/service/applicationdiscoveryservice/types/errors.go
@@ -27,7 +27,7 @@ func (e *AuthorizationErrorException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AuthorizationErrorException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AuthorizationErrorException"
 	}
 	return *e.ErrorCodeOverride
@@ -52,7 +52,7 @@ func (e *ConflictErrorException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ConflictErrorException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ConflictErrorException"
 	}
 	return *e.ErrorCodeOverride
@@ -78,7 +78,7 @@ func (e *HomeRegionNotSetException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *HomeRegionNotSetException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "HomeRegionNotSetException"
 	}
 	return *e.ErrorCodeOverride
@@ -104,7 +104,7 @@ func (e *InvalidParameterException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidParameterException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidParameterException"
 	}
 	return *e.ErrorCodeOverride
@@ -131,7 +131,7 @@ func (e *InvalidParameterValueException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidParameterValueException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidParameterValueException"
 	}
 	return *e.ErrorCodeOverride
@@ -157,7 +157,7 @@ func (e *OperationNotPermittedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *OperationNotPermittedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "OperationNotPermittedException"
 	}
 	return *e.ErrorCodeOverride
@@ -187,7 +187,7 @@ func (e *ResourceInUseException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceInUseException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceInUseException"
 	}
 	return *e.ErrorCodeOverride
@@ -214,7 +214,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -240,7 +240,7 @@ func (e *ServerInternalErrorException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ServerInternalErrorException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ServerInternalErrorException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/applicationinsights/types/errors.go b/service/applicationinsights/types/errors.go
index dfd904e1507..05d92c74d24 100644
--- a/service/applicationinsights/types/errors.go
+++ b/service/applicationinsights/types/errors.go
@@ -26,7 +26,7 @@ func (e *AccessDeniedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AccessDeniedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AccessDeniedException"
 	}
 	return *e.ErrorCodeOverride
@@ -52,7 +52,7 @@ func (e *BadRequestException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *BadRequestException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "BadRequestException"
 	}
 	return *e.ErrorCodeOverride
@@ -78,7 +78,7 @@ func (e *InternalServerException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalServerException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalServerException"
 	}
 	return *e.ErrorCodeOverride
@@ -104,7 +104,7 @@ func (e *ResourceInUseException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceInUseException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceInUseException"
 	}
 	return *e.ErrorCodeOverride
@@ -130,7 +130,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -156,7 +156,7 @@ func (e *TagsAlreadyExistException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TagsAlreadyExistException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TagsAlreadyExistException"
 	}
 	return *e.ErrorCodeOverride
@@ -185,7 +185,7 @@ func (e *TooManyTagsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TooManyTagsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TooManyTagsException"
 	}
 	return *e.ErrorCodeOverride
@@ -211,7 +211,7 @@ func (e *ValidationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ValidationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ValidationException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/appmesh/types/errors.go b/service/appmesh/types/errors.go
index aec44a1a930..506ed1ca219 100644
--- a/service/appmesh/types/errors.go
+++ b/service/appmesh/types/errors.go
@@ -26,7 +26,7 @@ func (e *BadRequestException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *BadRequestException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "BadRequestException"
 	}
 	return *e.ErrorCodeOverride
@@ -54,7 +54,7 @@ func (e *ConflictException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ConflictException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ConflictException"
 	}
 	return *e.ErrorCodeOverride
@@ -80,7 +80,7 @@ func (e *ForbiddenException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ForbiddenException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ForbiddenException"
 	}
 	return *e.ErrorCodeOverride
@@ -107,7 +107,7 @@ func (e *InternalServerErrorException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalServerErrorException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalServerErrorException"
 	}
 	return *e.ErrorCodeOverride
@@ -136,7 +136,7 @@ func (e *LimitExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *LimitExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "LimitExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -162,7 +162,7 @@ func (e *NotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *NotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "NotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -189,7 +189,7 @@ func (e *ResourceInUseException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceInUseException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceInUseException"
 	}
 	return *e.ErrorCodeOverride
@@ -215,7 +215,7 @@ func (e *ServiceUnavailableException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ServiceUnavailableException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ServiceUnavailableException"
 	}
 	return *e.ErrorCodeOverride
@@ -243,7 +243,7 @@ func (e *TooManyRequestsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TooManyRequestsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TooManyRequestsException"
 	}
 	return *e.ErrorCodeOverride
@@ -271,7 +271,7 @@ func (e *TooManyTagsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TooManyTagsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TooManyTagsException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/apprunner/types/errors.go b/service/apprunner/types/errors.go
index 257cadaaf6c..6e8e84f3879 100644
--- a/service/apprunner/types/errors.go
+++ b/service/apprunner/types/errors.go
@@ -26,7 +26,7 @@ func (e *InternalServiceErrorException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalServiceErrorException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalServiceErrorException"
 	}
 	return *e.ErrorCodeOverride
@@ -53,7 +53,7 @@ func (e *InvalidRequestException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidRequestException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidRequestException"
 	}
 	return *e.ErrorCodeOverride
@@ -79,7 +79,7 @@ func (e *InvalidStateException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidStateException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidStateException"
 	}
 	return *e.ErrorCodeOverride
@@ -106,7 +106,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -135,7 +135,7 @@ func (e *ServiceQuotaExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ServiceQuotaExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ServiceQuotaExceededException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/appstream/types/errors.go b/service/appstream/types/errors.go
index 27be3cb7d44..796ce7810d5 100644
--- a/service/appstream/types/errors.go
+++ b/service/appstream/types/errors.go
@@ -26,7 +26,7 @@ func (e *ConcurrentModificationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ConcurrentModificationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ConcurrentModificationException"
 	}
 	return *e.ErrorCodeOverride
@@ -52,7 +52,7 @@ func (e *EntitlementAlreadyExistsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *EntitlementAlreadyExistsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "EntitlementAlreadyExistsException"
 	}
 	return *e.ErrorCodeOverride
@@ -78,7 +78,7 @@ func (e *EntitlementNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *EntitlementNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "EntitlementNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -104,7 +104,7 @@ func (e *IncompatibleImageException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *IncompatibleImageException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "IncompatibleImageException"
 	}
 	return *e.ErrorCodeOverride
@@ -131,7 +131,7 @@ func (e *InvalidAccountStatusException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidAccountStatusException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidAccountStatusException"
 	}
 	return *e.ErrorCodeOverride
@@ -157,7 +157,7 @@ func (e *InvalidParameterCombinationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidParameterCombinationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidParameterCombinationException"
 	}
 	return *e.ErrorCodeOverride
@@ -185,7 +185,7 @@ func (e *InvalidRoleException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidRoleException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidRoleException"
 	}
 	return *e.ErrorCodeOverride
@@ -211,7 +211,7 @@ func (e *LimitExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *LimitExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "LimitExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -237,7 +237,7 @@ func (e *OperationNotPermittedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *OperationNotPermittedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "OperationNotPermittedException"
 	}
 	return *e.ErrorCodeOverride
@@ -264,7 +264,7 @@ func (e *RequestLimitExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *RequestLimitExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "RequestLimitExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -290,7 +290,7 @@ func (e *ResourceAlreadyExistsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceAlreadyExistsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceAlreadyExistsException"
 	}
 	return *e.ErrorCodeOverride
@@ -316,7 +316,7 @@ func (e *ResourceInUseException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceInUseException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceInUseException"
 	}
 	return *e.ErrorCodeOverride
@@ -342,7 +342,7 @@ func (e *ResourceNotAvailableException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotAvailableException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotAvailableException"
 	}
 	return *e.ErrorCodeOverride
@@ -368,7 +368,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/appsync/types/errors.go b/service/appsync/types/errors.go
index ecdb2840507..ab032791efd 100644
--- a/service/appsync/types/errors.go
+++ b/service/appsync/types/errors.go
@@ -26,7 +26,7 @@ func (e *AccessDeniedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AccessDeniedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AccessDeniedException"
 	}
 	return *e.ErrorCodeOverride
@@ -52,7 +52,7 @@ func (e *ApiKeyLimitExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ApiKeyLimitExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ApiKeyLimitExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -79,7 +79,7 @@ func (e *ApiKeyValidityOutOfBoundsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ApiKeyValidityOutOfBoundsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ApiKeyValidityOutOfBoundsException"
 	}
 	return *e.ErrorCodeOverride
@@ -107,7 +107,7 @@ func (e *ApiLimitExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ApiLimitExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ApiLimitExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -137,7 +137,7 @@ func (e *BadRequestException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *BadRequestException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "BadRequestException"
 	}
 	return *e.ErrorCodeOverride
@@ -164,7 +164,7 @@ func (e *ConcurrentModificationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ConcurrentModificationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ConcurrentModificationException"
 	}
 	return *e.ErrorCodeOverride
@@ -190,7 +190,7 @@ func (e *GraphQLSchemaException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *GraphQLSchemaException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "GraphQLSchemaException"
 	}
 	return *e.ErrorCodeOverride
@@ -216,7 +216,7 @@ func (e *InternalFailureException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalFailureException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalFailureException"
 	}
 	return *e.ErrorCodeOverride
@@ -242,7 +242,7 @@ func (e *LimitExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *LimitExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "LimitExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -269,7 +269,7 @@ func (e *NotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *NotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "NotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -295,7 +295,7 @@ func (e *UnauthorizedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *UnauthorizedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "UnauthorizedException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/arczonalshift/types/errors.go b/service/arczonalshift/types/errors.go
index 0550abfb150..6942baeb852 100644
--- a/service/arczonalshift/types/errors.go
+++ b/service/arczonalshift/types/errors.go
@@ -26,7 +26,7 @@ func (e *AccessDeniedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AccessDeniedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AccessDeniedException"
 	}
 	return *e.ErrorCodeOverride
@@ -56,7 +56,7 @@ func (e *ConflictException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ConflictException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ConflictException"
 	}
 	return *e.ErrorCodeOverride
@@ -82,7 +82,7 @@ func (e *InternalServerException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalServerException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalServerException"
 	}
 	return *e.ErrorCodeOverride
@@ -108,7 +108,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -134,7 +134,7 @@ func (e *ThrottlingException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ThrottlingException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ThrottlingException"
 	}
 	return *e.ErrorCodeOverride
@@ -162,7 +162,7 @@ func (e *ValidationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ValidationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ValidationException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/athena/types/errors.go b/service/athena/types/errors.go
index 90205ef88e5..13fadbcdbf7 100644
--- a/service/athena/types/errors.go
+++ b/service/athena/types/errors.go
@@ -26,7 +26,7 @@ func (e *InternalServerException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalServerException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalServerException"
 	}
 	return *e.ErrorCodeOverride
@@ -55,7 +55,7 @@ func (e *InvalidRequestException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidRequestException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidRequestException"
 	}
 	return *e.ErrorCodeOverride
@@ -85,7 +85,7 @@ func (e *MetadataException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *MetadataException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "MetadataException"
 	}
 	return *e.ErrorCodeOverride
@@ -113,7 +113,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -139,7 +139,7 @@ func (e *SessionAlreadyExistsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *SessionAlreadyExistsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "SessionAlreadyExistsException"
 	}
 	return *e.ErrorCodeOverride
@@ -167,7 +167,7 @@ func (e *TooManyRequestsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TooManyRequestsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TooManyRequestsException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/auditmanager/types/errors.go b/service/auditmanager/types/errors.go
index 5f68c0228c0..35c9bd10f37 100644
--- a/service/auditmanager/types/errors.go
+++ b/service/auditmanager/types/errors.go
@@ -27,7 +27,7 @@ func (e *AccessDeniedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AccessDeniedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AccessDeniedException"
 	}
 	return *e.ErrorCodeOverride
@@ -54,7 +54,7 @@ func (e *InternalServerException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalServerException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalServerException"
 	}
 	return *e.ErrorCodeOverride
@@ -83,7 +83,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -114,7 +114,7 @@ func (e *ServiceQuotaExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ServiceQuotaExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ServiceQuotaExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -140,7 +140,7 @@ func (e *ThrottlingException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ThrottlingException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ThrottlingException"
 	}
 	return *e.ErrorCodeOverride
@@ -169,7 +169,7 @@ func (e *ValidationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ValidationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ValidationException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/autoscaling/types/errors.go b/service/autoscaling/types/errors.go
index c0362543be9..0ef0c1159f4 100644
--- a/service/autoscaling/types/errors.go
+++ b/service/autoscaling/types/errors.go
@@ -27,7 +27,7 @@ func (e *ActiveInstanceRefreshNotFoundFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ActiveInstanceRefreshNotFoundFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ActiveInstanceRefreshNotFound"
 	}
 	return *e.ErrorCodeOverride
@@ -55,7 +55,7 @@ func (e *AlreadyExistsFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AlreadyExistsFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AlreadyExists"
 	}
 	return *e.ErrorCodeOverride
@@ -82,7 +82,7 @@ func (e *InstanceRefreshInProgressFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InstanceRefreshInProgressFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InstanceRefreshInProgress"
 	}
 	return *e.ErrorCodeOverride
@@ -108,7 +108,7 @@ func (e *InvalidNextToken) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidNextToken) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidNextToken"
 	}
 	return *e.ErrorCodeOverride
@@ -137,7 +137,7 @@ func (e *IrreversibleInstanceRefreshFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *IrreversibleInstanceRefreshFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "IrreversibleInstanceRefresh"
 	}
 	return *e.ErrorCodeOverride
@@ -167,7 +167,7 @@ func (e *LimitExceededFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *LimitExceededFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "LimitExceeded"
 	}
 	return *e.ErrorCodeOverride
@@ -194,7 +194,7 @@ func (e *ResourceContentionFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceContentionFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceContention"
 	}
 	return *e.ErrorCodeOverride
@@ -220,7 +220,7 @@ func (e *ResourceInUseFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceInUseFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceInUse"
 	}
 	return *e.ErrorCodeOverride
@@ -247,7 +247,7 @@ func (e *ScalingActivityInProgressFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ScalingActivityInProgressFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ScalingActivityInProgress"
 	}
 	return *e.ErrorCodeOverride
@@ -273,7 +273,7 @@ func (e *ServiceLinkedRoleFailure) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ServiceLinkedRoleFailure) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ServiceLinkedRoleFailure"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/autoscalingplans/types/errors.go b/service/autoscalingplans/types/errors.go
index 2cfedc28e3f..27b70e81a5a 100644
--- a/service/autoscalingplans/types/errors.go
+++ b/service/autoscalingplans/types/errors.go
@@ -27,7 +27,7 @@ func (e *ConcurrentUpdateException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ConcurrentUpdateException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ConcurrentUpdateException"
 	}
 	return *e.ErrorCodeOverride
@@ -53,7 +53,7 @@ func (e *InternalServiceException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalServiceException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalServiceException"
 	}
 	return *e.ErrorCodeOverride
@@ -79,7 +79,7 @@ func (e *InvalidNextTokenException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidNextTokenException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidNextTokenException"
 	}
 	return *e.ErrorCodeOverride
@@ -106,7 +106,7 @@ func (e *LimitExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *LimitExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "LimitExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -132,7 +132,7 @@ func (e *ObjectNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ObjectNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ObjectNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -158,7 +158,7 @@ func (e *ValidationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ValidationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ValidationException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/backup/types/errors.go b/service/backup/types/errors.go
index 9e25255bb21..379776c3901 100644
--- a/service/backup/types/errors.go
+++ b/service/backup/types/errors.go
@@ -32,7 +32,7 @@ func (e *AlreadyExistsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AlreadyExistsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AlreadyExistsException"
 	}
 	return *e.ErrorCodeOverride
@@ -63,7 +63,7 @@ func (e *ConflictException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ConflictException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ConflictException"
 	}
 	return *e.ErrorCodeOverride
@@ -94,7 +94,7 @@ func (e *DependencyFailureException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DependencyFailureException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DependencyFailureException"
 	}
 	return *e.ErrorCodeOverride
@@ -125,7 +125,7 @@ func (e *InvalidParameterValueException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidParameterValueException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidParameterValueException"
 	}
 	return *e.ErrorCodeOverride
@@ -156,7 +156,7 @@ func (e *InvalidRequestException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidRequestException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidRequestException"
 	}
 	return *e.ErrorCodeOverride
@@ -187,7 +187,7 @@ func (e *InvalidResourceStateException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidResourceStateException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidResourceStateException"
 	}
 	return *e.ErrorCodeOverride
@@ -218,7 +218,7 @@ func (e *LimitExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *LimitExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "LimitExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -248,7 +248,7 @@ func (e *MissingParameterValueException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *MissingParameterValueException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "MissingParameterValueException"
 	}
 	return *e.ErrorCodeOverride
@@ -278,7 +278,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -308,7 +308,7 @@ func (e *ServiceUnavailableException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ServiceUnavailableException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ServiceUnavailableException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/backupgateway/types/errors.go b/service/backupgateway/types/errors.go
index afd96bf6919..ee8f3fc5532 100644
--- a/service/backupgateway/types/errors.go
+++ b/service/backupgateway/types/errors.go
@@ -28,7 +28,7 @@ func (e *AccessDeniedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AccessDeniedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AccessDeniedException"
 	}
 	return *e.ErrorCodeOverride
@@ -56,7 +56,7 @@ func (e *ConflictException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ConflictException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ConflictException"
 	}
 	return *e.ErrorCodeOverride
@@ -85,7 +85,7 @@ func (e *InternalServerException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalServerException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalServerException"
 	}
 	return *e.ErrorCodeOverride
@@ -113,7 +113,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -142,7 +142,7 @@ func (e *ThrottlingException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ThrottlingException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ThrottlingException"
 	}
 	return *e.ErrorCodeOverride
@@ -170,7 +170,7 @@ func (e *ValidationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ValidationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ValidationException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/backupstorage/types/errors.go b/service/backupstorage/types/errors.go
index bf212173dd9..a7f1fad72ee 100644
--- a/service/backupstorage/types/errors.go
+++ b/service/backupstorage/types/errors.go
@@ -25,7 +25,7 @@ func (e *AccessDeniedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AccessDeniedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AccessDeniedException"
 	}
 	return *e.ErrorCodeOverride
@@ -55,7 +55,7 @@ func (e *DataAlreadyExistsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DataAlreadyExistsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DataAlreadyExistsException"
 	}
 	return *e.ErrorCodeOverride
@@ -82,7 +82,7 @@ func (e *IllegalArgumentException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *IllegalArgumentException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "IllegalArgumentException"
 	}
 	return *e.ErrorCodeOverride
@@ -109,7 +109,7 @@ func (e *KMSInvalidKeyUsageException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *KMSInvalidKeyUsageException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "KMSInvalidKeyUsageException"
 	}
 	return *e.ErrorCodeOverride
@@ -136,7 +136,7 @@ func (e *NotReadableInputStreamException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *NotReadableInputStreamException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "NotReadableInputStreamException"
 	}
 	return *e.ErrorCodeOverride
@@ -163,7 +163,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -190,7 +190,7 @@ func (e *RetryableException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *RetryableException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "RetryableException"
 	}
 	return *e.ErrorCodeOverride
@@ -216,7 +216,7 @@ func (e *ServiceInternalException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ServiceInternalException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ServiceInternalException"
 	}
 	return *e.ErrorCodeOverride
@@ -242,7 +242,7 @@ func (e *ServiceUnavailableException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ServiceUnavailableException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ServiceUnavailableException"
 	}
 	return *e.ErrorCodeOverride
@@ -268,7 +268,7 @@ func (e *ThrottlingException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ThrottlingException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ThrottlingException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/batch/types/errors.go b/service/batch/types/errors.go
index a3159ebe6f2..2e236a87a17 100644
--- a/service/batch/types/errors.go
+++ b/service/batch/types/errors.go
@@ -29,7 +29,7 @@ func (e *ClientException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ClientException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ClientException"
 	}
 	return *e.ErrorCodeOverride
@@ -55,7 +55,7 @@ func (e *ServerException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ServerException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ServerException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/billingconductor/types/errors.go b/service/billingconductor/types/errors.go
index 022fb064ac3..7dbd7ccab11 100644
--- a/service/billingconductor/types/errors.go
+++ b/service/billingconductor/types/errors.go
@@ -26,7 +26,7 @@ func (e *AccessDeniedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AccessDeniedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AccessDeniedException"
 	}
 	return *e.ErrorCodeOverride
@@ -56,7 +56,7 @@ func (e *ConflictException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ConflictException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ConflictException"
 	}
 	return *e.ErrorCodeOverride
@@ -84,7 +84,7 @@ func (e *InternalServerException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalServerException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalServerException"
 	}
 	return *e.ErrorCodeOverride
@@ -113,7 +113,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -144,7 +144,7 @@ func (e *ServiceLimitExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ServiceLimitExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ServiceLimitExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -172,7 +172,7 @@ func (e *ThrottlingException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ThrottlingException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ThrottlingException"
 	}
 	return *e.ErrorCodeOverride
@@ -202,7 +202,7 @@ func (e *ValidationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ValidationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ValidationException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/braket/types/errors.go b/service/braket/types/errors.go
index 1702d698370..374cae8e571 100644
--- a/service/braket/types/errors.go
+++ b/service/braket/types/errors.go
@@ -26,7 +26,7 @@ func (e *AccessDeniedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AccessDeniedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AccessDeniedException"
 	}
 	return *e.ErrorCodeOverride
@@ -52,7 +52,7 @@ func (e *ConflictException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ConflictException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ConflictException"
 	}
 	return *e.ErrorCodeOverride
@@ -78,7 +78,7 @@ func (e *DeviceOfflineException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DeviceOfflineException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DeviceOfflineException"
 	}
 	return *e.ErrorCodeOverride
@@ -104,7 +104,7 @@ func (e *DeviceRetiredException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DeviceRetiredException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DeviceRetiredException"
 	}
 	return *e.ErrorCodeOverride
@@ -131,7 +131,7 @@ func (e *InternalServiceException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalServiceException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalServiceException"
 	}
 	return *e.ErrorCodeOverride
@@ -157,7 +157,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -183,7 +183,7 @@ func (e *ServiceQuotaExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ServiceQuotaExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ServiceQuotaExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -209,7 +209,7 @@ func (e *ThrottlingException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ThrottlingException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ThrottlingException"
 	}
 	return *e.ErrorCodeOverride
@@ -235,7 +235,7 @@ func (e *ValidationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ValidationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ValidationException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/budgets/types/errors.go b/service/budgets/types/errors.go
index 8cb0a8ff194..a81fb7a7346 100644
--- a/service/budgets/types/errors.go
+++ b/service/budgets/types/errors.go
@@ -26,7 +26,7 @@ func (e *AccessDeniedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AccessDeniedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AccessDeniedException"
 	}
 	return *e.ErrorCodeOverride
@@ -52,7 +52,7 @@ func (e *CreationLimitExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *CreationLimitExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "CreationLimitExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -78,7 +78,7 @@ func (e *DuplicateRecordException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DuplicateRecordException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DuplicateRecordException"
 	}
 	return *e.ErrorCodeOverride
@@ -104,7 +104,7 @@ func (e *ExpiredNextTokenException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ExpiredNextTokenException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ExpiredNextTokenException"
 	}
 	return *e.ErrorCodeOverride
@@ -131,7 +131,7 @@ func (e *InternalErrorException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalErrorException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalErrorException"
 	}
 	return *e.ErrorCodeOverride
@@ -157,7 +157,7 @@ func (e *InvalidNextTokenException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidNextTokenException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidNextTokenException"
 	}
 	return *e.ErrorCodeOverride
@@ -183,7 +183,7 @@ func (e *InvalidParameterException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidParameterException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidParameterException"
 	}
 	return *e.ErrorCodeOverride
@@ -209,7 +209,7 @@ func (e *NotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *NotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "NotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -236,7 +236,7 @@ func (e *ResourceLockedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceLockedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceLockedException"
 	}
 	return *e.ErrorCodeOverride
@@ -263,7 +263,7 @@ func (e *ThrottlingException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ThrottlingException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ThrottlingException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/chime/types/errors.go b/service/chime/types/errors.go
index 85d32e888b5..36d6f7fafca 100644
--- a/service/chime/types/errors.go
+++ b/service/chime/types/errors.go
@@ -28,7 +28,7 @@ func (e *AccessDeniedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AccessDeniedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AccessDeniedException"
 	}
 	return *e.ErrorCodeOverride
@@ -56,7 +56,7 @@ func (e *BadRequestException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *BadRequestException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "BadRequestException"
 	}
 	return *e.ErrorCodeOverride
@@ -85,7 +85,7 @@ func (e *ConflictException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ConflictException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ConflictException"
 	}
 	return *e.ErrorCodeOverride
@@ -113,7 +113,7 @@ func (e *ForbiddenException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ForbiddenException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ForbiddenException"
 	}
 	return *e.ErrorCodeOverride
@@ -141,7 +141,7 @@ func (e *NotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *NotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "NotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -169,7 +169,7 @@ func (e *ResourceLimitExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceLimitExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceLimitExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -197,7 +197,7 @@ func (e *ServiceFailureException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ServiceFailureException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ServiceFailureException"
 	}
 	return *e.ErrorCodeOverride
@@ -225,7 +225,7 @@ func (e *ServiceUnavailableException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ServiceUnavailableException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ServiceUnavailableException"
 	}
 	return *e.ErrorCodeOverride
@@ -253,7 +253,7 @@ func (e *ThrottledClientException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ThrottledClientException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ThrottledClientException"
 	}
 	return *e.ErrorCodeOverride
@@ -281,7 +281,7 @@ func (e *UnauthorizedClientException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *UnauthorizedClientException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "UnauthorizedClientException"
 	}
 	return *e.ErrorCodeOverride
@@ -310,7 +310,7 @@ func (e *UnprocessableEntityException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *UnprocessableEntityException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "UnprocessableEntityException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/chimesdkidentity/types/errors.go b/service/chimesdkidentity/types/errors.go
index 508cfd1f8fd..16a3c8a951b 100644
--- a/service/chimesdkidentity/types/errors.go
+++ b/service/chimesdkidentity/types/errors.go
@@ -28,7 +28,7 @@ func (e *BadRequestException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *BadRequestException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "BadRequestException"
 	}
 	return *e.ErrorCodeOverride
@@ -57,7 +57,7 @@ func (e *ConflictException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ConflictException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ConflictException"
 	}
 	return *e.ErrorCodeOverride
@@ -85,7 +85,7 @@ func (e *ForbiddenException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ForbiddenException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ForbiddenException"
 	}
 	return *e.ErrorCodeOverride
@@ -113,7 +113,7 @@ func (e *ResourceLimitExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceLimitExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceLimitExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -141,7 +141,7 @@ func (e *ServiceFailureException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ServiceFailureException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ServiceFailureException"
 	}
 	return *e.ErrorCodeOverride
@@ -169,7 +169,7 @@ func (e *ServiceUnavailableException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ServiceUnavailableException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ServiceUnavailableException"
 	}
 	return *e.ErrorCodeOverride
@@ -197,7 +197,7 @@ func (e *ThrottledClientException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ThrottledClientException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ThrottledClientException"
 	}
 	return *e.ErrorCodeOverride
@@ -225,7 +225,7 @@ func (e *UnauthorizedClientException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *UnauthorizedClientException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "UnauthorizedClientException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/chimesdkmediapipelines/types/errors.go b/service/chimesdkmediapipelines/types/errors.go
index b36fed8f6e4..e8d38770d52 100644
--- a/service/chimesdkmediapipelines/types/errors.go
+++ b/service/chimesdkmediapipelines/types/errors.go
@@ -29,7 +29,7 @@ func (e *BadRequestException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *BadRequestException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "BadRequestException"
 	}
 	return *e.ErrorCodeOverride
@@ -58,7 +58,7 @@ func (e *ForbiddenException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ForbiddenException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ForbiddenException"
 	}
 	return *e.ErrorCodeOverride
@@ -87,7 +87,7 @@ func (e *NotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *NotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "NotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -116,7 +116,7 @@ func (e *ResourceLimitExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceLimitExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceLimitExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -145,7 +145,7 @@ func (e *ServiceFailureException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ServiceFailureException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ServiceFailureException"
 	}
 	return *e.ErrorCodeOverride
@@ -174,7 +174,7 @@ func (e *ServiceUnavailableException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ServiceUnavailableException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ServiceUnavailableException"
 	}
 	return *e.ErrorCodeOverride
@@ -203,7 +203,7 @@ func (e *ThrottledClientException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ThrottledClientException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ThrottledClientException"
 	}
 	return *e.ErrorCodeOverride
@@ -232,7 +232,7 @@ func (e *UnauthorizedClientException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *UnauthorizedClientException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "UnauthorizedClientException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/chimesdkmeetings/types/errors.go b/service/chimesdkmeetings/types/errors.go
index 8986475618d..49d8837b3a1 100644
--- a/service/chimesdkmeetings/types/errors.go
+++ b/service/chimesdkmeetings/types/errors.go
@@ -29,7 +29,7 @@ func (e *BadRequestException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *BadRequestException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "BadRequestException"
 	}
 	return *e.ErrorCodeOverride
@@ -58,7 +58,7 @@ func (e *ConflictException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ConflictException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ConflictException"
 	}
 	return *e.ErrorCodeOverride
@@ -87,7 +87,7 @@ func (e *ForbiddenException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ForbiddenException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ForbiddenException"
 	}
 	return *e.ErrorCodeOverride
@@ -116,7 +116,7 @@ func (e *LimitExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *LimitExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "LimitExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -145,7 +145,7 @@ func (e *NotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *NotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "NotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -175,7 +175,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -204,7 +204,7 @@ func (e *ServiceFailureException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ServiceFailureException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ServiceFailureException"
 	}
 	return *e.ErrorCodeOverride
@@ -234,7 +234,7 @@ func (e *ServiceUnavailableException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ServiceUnavailableException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ServiceUnavailableException"
 	}
 	return *e.ErrorCodeOverride
@@ -263,7 +263,7 @@ func (e *ThrottlingException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ThrottlingException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ThrottlingException"
 	}
 	return *e.ErrorCodeOverride
@@ -293,7 +293,7 @@ func (e *TooManyTagsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TooManyTagsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TooManyTagsException"
 	}
 	return *e.ErrorCodeOverride
@@ -322,7 +322,7 @@ func (e *UnauthorizedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *UnauthorizedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "UnauthorizedException"
 	}
 	return *e.ErrorCodeOverride
@@ -352,7 +352,7 @@ func (e *UnprocessableEntityException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *UnprocessableEntityException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "UnprocessableEntityException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/chimesdkmessaging/types/errors.go b/service/chimesdkmessaging/types/errors.go
index bd23c94cf38..5eb9ebfcd72 100644
--- a/service/chimesdkmessaging/types/errors.go
+++ b/service/chimesdkmessaging/types/errors.go
@@ -28,7 +28,7 @@ func (e *BadRequestException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *BadRequestException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "BadRequestException"
 	}
 	return *e.ErrorCodeOverride
@@ -57,7 +57,7 @@ func (e *ConflictException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ConflictException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ConflictException"
 	}
 	return *e.ErrorCodeOverride
@@ -85,7 +85,7 @@ func (e *ForbiddenException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ForbiddenException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ForbiddenException"
 	}
 	return *e.ErrorCodeOverride
@@ -113,7 +113,7 @@ func (e *NotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *NotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "NotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -141,7 +141,7 @@ func (e *ResourceLimitExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceLimitExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceLimitExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -169,7 +169,7 @@ func (e *ServiceFailureException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ServiceFailureException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ServiceFailureException"
 	}
 	return *e.ErrorCodeOverride
@@ -197,7 +197,7 @@ func (e *ServiceUnavailableException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ServiceUnavailableException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ServiceUnavailableException"
 	}
 	return *e.ErrorCodeOverride
@@ -225,7 +225,7 @@ func (e *ThrottledClientException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ThrottledClientException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ThrottledClientException"
 	}
 	return *e.ErrorCodeOverride
@@ -253,7 +253,7 @@ func (e *UnauthorizedClientException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *UnauthorizedClientException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "UnauthorizedClientException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/chimesdkvoice/types/errors.go b/service/chimesdkvoice/types/errors.go
index e67d3979b4e..5153756c673 100644
--- a/service/chimesdkvoice/types/errors.go
+++ b/service/chimesdkvoice/types/errors.go
@@ -27,7 +27,7 @@ func (e *AccessDeniedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AccessDeniedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AccessDeniedException"
 	}
 	return *e.ErrorCodeOverride
@@ -54,7 +54,7 @@ func (e *BadRequestException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *BadRequestException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "BadRequestException"
 	}
 	return *e.ErrorCodeOverride
@@ -81,7 +81,7 @@ func (e *ConflictException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ConflictException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ConflictException"
 	}
 	return *e.ErrorCodeOverride
@@ -108,7 +108,7 @@ func (e *ForbiddenException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ForbiddenException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ForbiddenException"
 	}
 	return *e.ErrorCodeOverride
@@ -135,7 +135,7 @@ func (e *NotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *NotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "NotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -162,7 +162,7 @@ func (e *ResourceLimitExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceLimitExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceLimitExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -189,7 +189,7 @@ func (e *ServiceFailureException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ServiceFailureException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ServiceFailureException"
 	}
 	return *e.ErrorCodeOverride
@@ -216,7 +216,7 @@ func (e *ServiceUnavailableException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ServiceUnavailableException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ServiceUnavailableException"
 	}
 	return *e.ErrorCodeOverride
@@ -243,7 +243,7 @@ func (e *ThrottledClientException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ThrottledClientException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ThrottledClientException"
 	}
 	return *e.ErrorCodeOverride
@@ -270,7 +270,7 @@ func (e *UnauthorizedClientException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *UnauthorizedClientException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "UnauthorizedClientException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/cleanrooms/types/errors.go b/service/cleanrooms/types/errors.go
index f1c27432d51..90b617b1237 100644
--- a/service/cleanrooms/types/errors.go
+++ b/service/cleanrooms/types/errors.go
@@ -28,7 +28,7 @@ func (e *AccessDeniedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AccessDeniedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AccessDeniedException"
 	}
 	return *e.ErrorCodeOverride
@@ -58,7 +58,7 @@ func (e *ConflictException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ConflictException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ConflictException"
 	}
 	return *e.ErrorCodeOverride
@@ -84,7 +84,7 @@ func (e *InternalServerException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalServerException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalServerException"
 	}
 	return *e.ErrorCodeOverride
@@ -113,7 +113,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -142,7 +142,7 @@ func (e *ServiceQuotaExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ServiceQuotaExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ServiceQuotaExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -168,7 +168,7 @@ func (e *ThrottlingException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ThrottlingException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ThrottlingException"
 	}
 	return *e.ErrorCodeOverride
@@ -197,7 +197,7 @@ func (e *ValidationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ValidationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ValidationException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/cloud9/types/errors.go b/service/cloud9/types/errors.go
index 1d1c7d071a1..dfb1dfd5a78 100644
--- a/service/cloud9/types/errors.go
+++ b/service/cloud9/types/errors.go
@@ -29,7 +29,7 @@ func (e *BadRequestException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *BadRequestException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "BadRequestException"
 	}
 	return *e.ErrorCodeOverride
@@ -58,7 +58,7 @@ func (e *ConcurrentAccessException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ConcurrentAccessException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ConcurrentAccessException"
 	}
 	return *e.ErrorCodeOverride
@@ -87,7 +87,7 @@ func (e *ConflictException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ConflictException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ConflictException"
 	}
 	return *e.ErrorCodeOverride
@@ -116,7 +116,7 @@ func (e *ForbiddenException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ForbiddenException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ForbiddenException"
 	}
 	return *e.ErrorCodeOverride
@@ -145,7 +145,7 @@ func (e *InternalServerErrorException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalServerErrorException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalServerErrorException"
 	}
 	return *e.ErrorCodeOverride
@@ -174,7 +174,7 @@ func (e *LimitExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *LimitExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "LimitExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -203,7 +203,7 @@ func (e *NotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *NotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "NotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -232,7 +232,7 @@ func (e *TooManyRequestsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TooManyRequestsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TooManyRequestsException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/cloudcontrol/types/errors.go b/service/cloudcontrol/types/errors.go
index 3e3f99969e4..079c178bb8d 100644
--- a/service/cloudcontrol/types/errors.go
+++ b/service/cloudcontrol/types/errors.go
@@ -26,7 +26,7 @@ func (e *AlreadyExistsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AlreadyExistsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AlreadyExistsException"
 	}
 	return *e.ErrorCodeOverride
@@ -54,7 +54,7 @@ func (e *ClientTokenConflictException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ClientTokenConflictException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ClientTokenConflictException"
 	}
 	return *e.ErrorCodeOverride
@@ -80,7 +80,7 @@ func (e *ConcurrentModificationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ConcurrentModificationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ConcurrentModificationException"
 	}
 	return *e.ErrorCodeOverride
@@ -106,7 +106,7 @@ func (e *ConcurrentOperationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ConcurrentOperationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ConcurrentOperationException"
 	}
 	return *e.ErrorCodeOverride
@@ -133,7 +133,7 @@ func (e *GeneralServiceException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *GeneralServiceException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "GeneralServiceException"
 	}
 	return *e.ErrorCodeOverride
@@ -160,7 +160,7 @@ func (e *HandlerFailureException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *HandlerFailureException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "HandlerFailureException"
 	}
 	return *e.ErrorCodeOverride
@@ -187,7 +187,7 @@ func (e *HandlerInternalFailureException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *HandlerInternalFailureException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "HandlerInternalFailureException"
 	}
 	return *e.ErrorCodeOverride
@@ -214,7 +214,7 @@ func (e *InvalidCredentialsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidCredentialsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidCredentialsException"
 	}
 	return *e.ErrorCodeOverride
@@ -241,7 +241,7 @@ func (e *InvalidRequestException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidRequestException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidRequestException"
 	}
 	return *e.ErrorCodeOverride
@@ -268,7 +268,7 @@ func (e *NetworkFailureException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *NetworkFailureException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "NetworkFailureException"
 	}
 	return *e.ErrorCodeOverride
@@ -295,7 +295,7 @@ func (e *NotStabilizedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *NotStabilizedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "NotStabilizedException"
 	}
 	return *e.ErrorCodeOverride
@@ -322,7 +322,7 @@ func (e *NotUpdatableException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *NotUpdatableException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "NotUpdatableException"
 	}
 	return *e.ErrorCodeOverride
@@ -350,7 +350,7 @@ func (e *PrivateTypeException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *PrivateTypeException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "PrivateTypeException"
 	}
 	return *e.ErrorCodeOverride
@@ -376,7 +376,7 @@ func (e *RequestTokenNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *RequestTokenNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "RequestTokenNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -404,7 +404,7 @@ func (e *ResourceConflictException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceConflictException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceConflictException"
 	}
 	return *e.ErrorCodeOverride
@@ -430,7 +430,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -457,7 +457,7 @@ func (e *ServiceInternalErrorException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ServiceInternalErrorException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ServiceInternalErrorException"
 	}
 	return *e.ErrorCodeOverride
@@ -484,7 +484,7 @@ func (e *ServiceLimitExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ServiceLimitExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ServiceLimitExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -510,7 +510,7 @@ func (e *ThrottlingException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ThrottlingException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ThrottlingException"
 	}
 	return *e.ErrorCodeOverride
@@ -536,7 +536,7 @@ func (e *TypeNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TypeNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TypeNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -562,7 +562,7 @@ func (e *UnsupportedActionException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *UnsupportedActionException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "UnsupportedActionException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/clouddirectory/types/errors.go b/service/clouddirectory/types/errors.go
index de50f67cf0c..e8d09cf8f9a 100644
--- a/service/clouddirectory/types/errors.go
+++ b/service/clouddirectory/types/errors.go
@@ -28,7 +28,7 @@ func (e *AccessDeniedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AccessDeniedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AccessDeniedException"
 	}
 	return *e.ErrorCodeOverride
@@ -57,7 +57,7 @@ func (e *BatchWriteException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *BatchWriteException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "BatchWriteException"
 	}
 	return *e.ErrorCodeOverride
@@ -83,7 +83,7 @@ func (e *CannotListParentOfRootException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *CannotListParentOfRootException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "CannotListParentOfRootException"
 	}
 	return *e.ErrorCodeOverride
@@ -110,7 +110,7 @@ func (e *DirectoryAlreadyExistsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DirectoryAlreadyExistsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DirectoryAlreadyExistsException"
 	}
 	return *e.ErrorCodeOverride
@@ -137,7 +137,7 @@ func (e *DirectoryDeletedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DirectoryDeletedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DirectoryDeletedException"
 	}
 	return *e.ErrorCodeOverride
@@ -163,7 +163,7 @@ func (e *DirectoryNotDisabledException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DirectoryNotDisabledException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DirectoryNotDisabledException"
 	}
 	return *e.ErrorCodeOverride
@@ -189,7 +189,7 @@ func (e *DirectoryNotEnabledException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DirectoryNotEnabledException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DirectoryNotEnabledException"
 	}
 	return *e.ErrorCodeOverride
@@ -215,7 +215,7 @@ func (e *FacetAlreadyExistsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *FacetAlreadyExistsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "FacetAlreadyExistsException"
 	}
 	return *e.ErrorCodeOverride
@@ -242,7 +242,7 @@ func (e *FacetInUseException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *FacetInUseException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "FacetInUseException"
 	}
 	return *e.ErrorCodeOverride
@@ -268,7 +268,7 @@ func (e *FacetNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *FacetNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "FacetNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -295,7 +295,7 @@ func (e *FacetValidationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *FacetValidationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "FacetValidationException"
 	}
 	return *e.ErrorCodeOverride
@@ -323,7 +323,7 @@ func (e *IncompatibleSchemaException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *IncompatibleSchemaException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "IncompatibleSchemaException"
 	}
 	return *e.ErrorCodeOverride
@@ -350,7 +350,7 @@ func (e *IndexedAttributeMissingException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *IndexedAttributeMissingException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "IndexedAttributeMissingException"
 	}
 	return *e.ErrorCodeOverride
@@ -380,7 +380,7 @@ func (e *InternalServiceException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalServiceException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalServiceException"
 	}
 	return *e.ErrorCodeOverride
@@ -406,7 +406,7 @@ func (e *InvalidArnException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidArnException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidArnException"
 	}
 	return *e.ErrorCodeOverride
@@ -434,7 +434,7 @@ func (e *InvalidAttachmentException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidAttachmentException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidAttachmentException"
 	}
 	return *e.ErrorCodeOverride
@@ -460,7 +460,7 @@ func (e *InvalidFacetUpdateException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidFacetUpdateException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidFacetUpdateException"
 	}
 	return *e.ErrorCodeOverride
@@ -486,7 +486,7 @@ func (e *InvalidNextTokenException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidNextTokenException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidNextTokenException"
 	}
 	return *e.ErrorCodeOverride
@@ -512,7 +512,7 @@ func (e *InvalidRuleException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidRuleException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidRuleException"
 	}
 	return *e.ErrorCodeOverride
@@ -538,7 +538,7 @@ func (e *InvalidSchemaDocException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidSchemaDocException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidSchemaDocException"
 	}
 	return *e.ErrorCodeOverride
@@ -566,7 +566,7 @@ func (e *InvalidTaggingRequestException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidTaggingRequestException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidTaggingRequestException"
 	}
 	return *e.ErrorCodeOverride
@@ -594,7 +594,7 @@ func (e *LimitExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *LimitExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "LimitExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -621,7 +621,7 @@ func (e *LinkNameAlreadyInUseException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *LinkNameAlreadyInUseException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "LinkNameAlreadyInUseException"
 	}
 	return *e.ErrorCodeOverride
@@ -647,7 +647,7 @@ func (e *NotIndexException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *NotIndexException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "NotIndexException"
 	}
 	return *e.ErrorCodeOverride
@@ -674,7 +674,7 @@ func (e *NotNodeException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *NotNodeException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "NotNodeException"
 	}
 	return *e.ErrorCodeOverride
@@ -700,7 +700,7 @@ func (e *NotPolicyException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *NotPolicyException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "NotPolicyException"
 	}
 	return *e.ErrorCodeOverride
@@ -726,7 +726,7 @@ func (e *ObjectAlreadyDetachedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ObjectAlreadyDetachedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ObjectAlreadyDetachedException"
 	}
 	return *e.ErrorCodeOverride
@@ -753,7 +753,7 @@ func (e *ObjectNotDetachedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ObjectNotDetachedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ObjectNotDetachedException"
 	}
 	return *e.ErrorCodeOverride
@@ -779,7 +779,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -810,7 +810,7 @@ func (e *RetryableConflictException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *RetryableConflictException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "RetryableConflictException"
 	}
 	return *e.ErrorCodeOverride
@@ -837,7 +837,7 @@ func (e *SchemaAlreadyExistsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *SchemaAlreadyExistsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "SchemaAlreadyExistsException"
 	}
 	return *e.ErrorCodeOverride
@@ -863,7 +863,7 @@ func (e *SchemaAlreadyPublishedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *SchemaAlreadyPublishedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "SchemaAlreadyPublishedException"
 	}
 	return *e.ErrorCodeOverride
@@ -890,7 +890,7 @@ func (e *StillContainsLinksException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *StillContainsLinksException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "StillContainsLinksException"
 	}
 	return *e.ErrorCodeOverride
@@ -916,7 +916,7 @@ func (e *UnsupportedIndexTypeException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *UnsupportedIndexTypeException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "UnsupportedIndexTypeException"
 	}
 	return *e.ErrorCodeOverride
@@ -943,7 +943,7 @@ func (e *ValidationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ValidationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ValidationException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/cloudformation/types/errors.go b/service/cloudformation/types/errors.go
index 1ee2bb1b49d..ad9cad7e5fd 100644
--- a/service/cloudformation/types/errors.go
+++ b/service/cloudformation/types/errors.go
@@ -26,7 +26,7 @@ func (e *AlreadyExistsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AlreadyExistsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AlreadyExistsException"
 	}
 	return *e.ErrorCodeOverride
@@ -52,7 +52,7 @@ func (e *CFNRegistryException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *CFNRegistryException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "CFNRegistryException"
 	}
 	return *e.ErrorCodeOverride
@@ -79,7 +79,7 @@ func (e *ChangeSetNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ChangeSetNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ChangeSetNotFound"
 	}
 	return *e.ErrorCodeOverride
@@ -105,7 +105,7 @@ func (e *CreatedButModifiedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *CreatedButModifiedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "CreatedButModifiedException"
 	}
 	return *e.ErrorCodeOverride
@@ -132,7 +132,7 @@ func (e *InsufficientCapabilitiesException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InsufficientCapabilitiesException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InsufficientCapabilitiesException"
 	}
 	return *e.ErrorCodeOverride
@@ -160,7 +160,7 @@ func (e *InvalidChangeSetStatusException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidChangeSetStatusException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidChangeSetStatus"
 	}
 	return *e.ErrorCodeOverride
@@ -186,7 +186,7 @@ func (e *InvalidOperationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidOperationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidOperationException"
 	}
 	return *e.ErrorCodeOverride
@@ -214,7 +214,7 @@ func (e *InvalidStateTransitionException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidStateTransitionException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidStateTransition"
 	}
 	return *e.ErrorCodeOverride
@@ -243,7 +243,7 @@ func (e *LimitExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *LimitExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "LimitExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -269,7 +269,7 @@ func (e *NameAlreadyExistsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *NameAlreadyExistsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "NameAlreadyExistsException"
 	}
 	return *e.ErrorCodeOverride
@@ -295,7 +295,7 @@ func (e *OperationIdAlreadyExistsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *OperationIdAlreadyExistsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "OperationIdAlreadyExistsException"
 	}
 	return *e.ErrorCodeOverride
@@ -322,7 +322,7 @@ func (e *OperationInProgressException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *OperationInProgressException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "OperationInProgressException"
 	}
 	return *e.ErrorCodeOverride
@@ -348,7 +348,7 @@ func (e *OperationNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *OperationNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "OperationNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -376,7 +376,7 @@ func (e *OperationStatusCheckFailedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *OperationStatusCheckFailedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ConditionalCheckFailed"
 	}
 	return *e.ErrorCodeOverride
@@ -404,7 +404,7 @@ func (e *StackInstanceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *StackInstanceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "StackInstanceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -431,7 +431,7 @@ func (e *StackNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *StackNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "StackNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -459,7 +459,7 @@ func (e *StackSetNotEmptyException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *StackSetNotEmptyException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "StackSetNotEmptyException"
 	}
 	return *e.ErrorCodeOverride
@@ -485,7 +485,7 @@ func (e *StackSetNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *StackSetNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "StackSetNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -512,7 +512,7 @@ func (e *StaleRequestException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *StaleRequestException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "StaleRequestException"
 	}
 	return *e.ErrorCodeOverride
@@ -538,7 +538,7 @@ func (e *TokenAlreadyExistsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TokenAlreadyExistsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TokenAlreadyExistsException"
 	}
 	return *e.ErrorCodeOverride
@@ -564,7 +564,7 @@ func (e *TypeConfigurationNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TypeConfigurationNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TypeConfigurationNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -592,7 +592,7 @@ func (e *TypeNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TypeNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TypeNotFoundException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/cloudfront/types/errors.go b/service/cloudfront/types/errors.go
index 12e462f84bd..d97f3bafb78 100644
--- a/service/cloudfront/types/errors.go
+++ b/service/cloudfront/types/errors.go
@@ -26,7 +26,7 @@ func (e *AccessDenied) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AccessDenied) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AccessDenied"
 	}
 	return *e.ErrorCodeOverride
@@ -52,7 +52,7 @@ func (e *BatchTooLarge) ErrorMessage() string {
 	return *e.Message
 }
 func (e *BatchTooLarge) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "BatchTooLarge"
 	}
 	return *e.ErrorCodeOverride
@@ -79,7 +79,7 @@ func (e *CachePolicyAlreadyExists) ErrorMessage() string {
 	return *e.Message
 }
 func (e *CachePolicyAlreadyExists) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "CachePolicyAlreadyExists"
 	}
 	return *e.ErrorCodeOverride
@@ -106,7 +106,7 @@ func (e *CachePolicyInUse) ErrorMessage() string {
 	return *e.Message
 }
 func (e *CachePolicyInUse) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "CachePolicyInUse"
 	}
 	return *e.ErrorCodeOverride
@@ -132,7 +132,7 @@ func (e *CannotChangeImmutablePublicKeyFields) ErrorMessage() string {
 	return *e.Message
 }
 func (e *CannotChangeImmutablePublicKeyFields) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "CannotChangeImmutablePublicKeyFields"
 	}
 	return *e.ErrorCodeOverride
@@ -163,7 +163,7 @@ func (e *CloudFrontOriginAccessIdentityAlreadyExists) ErrorMessage() string {
 	return *e.Message
 }
 func (e *CloudFrontOriginAccessIdentityAlreadyExists) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "CloudFrontOriginAccessIdentityAlreadyExists"
 	}
 	return *e.ErrorCodeOverride
@@ -191,7 +191,7 @@ func (e *CloudFrontOriginAccessIdentityInUse) ErrorMessage() string {
 	return *e.Message
 }
 func (e *CloudFrontOriginAccessIdentityInUse) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "CloudFrontOriginAccessIdentityInUse"
 	}
 	return *e.ErrorCodeOverride
@@ -219,7 +219,7 @@ func (e *CNAMEAlreadyExists) ErrorMessage() string {
 	return *e.Message
 }
 func (e *CNAMEAlreadyExists) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "CNAMEAlreadyExists"
 	}
 	return *e.ErrorCodeOverride
@@ -245,7 +245,7 @@ func (e *ContinuousDeploymentPolicyAlreadyExists) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ContinuousDeploymentPolicyAlreadyExists) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ContinuousDeploymentPolicyAlreadyExists"
 	}
 	return *e.ErrorCodeOverride
@@ -274,7 +274,7 @@ func (e *ContinuousDeploymentPolicyInUse) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ContinuousDeploymentPolicyInUse) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ContinuousDeploymentPolicyInUse"
 	}
 	return *e.ErrorCodeOverride
@@ -301,7 +301,7 @@ func (e *DistributionAlreadyExists) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DistributionAlreadyExists) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DistributionAlreadyExists"
 	}
 	return *e.ErrorCodeOverride
@@ -328,7 +328,7 @@ func (e *DistributionNotDisabled) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DistributionNotDisabled) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DistributionNotDisabled"
 	}
 	return *e.ErrorCodeOverride
@@ -354,7 +354,7 @@ func (e *FieldLevelEncryptionConfigAlreadyExists) ErrorMessage() string {
 	return *e.Message
 }
 func (e *FieldLevelEncryptionConfigAlreadyExists) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "FieldLevelEncryptionConfigAlreadyExists"
 	}
 	return *e.ErrorCodeOverride
@@ -382,7 +382,7 @@ func (e *FieldLevelEncryptionConfigInUse) ErrorMessage() string {
 	return *e.Message
 }
 func (e *FieldLevelEncryptionConfigInUse) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "FieldLevelEncryptionConfigInUse"
 	}
 	return *e.ErrorCodeOverride
@@ -408,7 +408,7 @@ func (e *FieldLevelEncryptionProfileAlreadyExists) ErrorMessage() string {
 	return *e.Message
 }
 func (e *FieldLevelEncryptionProfileAlreadyExists) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "FieldLevelEncryptionProfileAlreadyExists"
 	}
 	return *e.ErrorCodeOverride
@@ -436,7 +436,7 @@ func (e *FieldLevelEncryptionProfileInUse) ErrorMessage() string {
 	return *e.Message
 }
 func (e *FieldLevelEncryptionProfileInUse) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "FieldLevelEncryptionProfileInUse"
 	}
 	return *e.ErrorCodeOverride
@@ -462,7 +462,7 @@ func (e *FieldLevelEncryptionProfileSizeExceeded) ErrorMessage() string {
 	return *e.Message
 }
 func (e *FieldLevelEncryptionProfileSizeExceeded) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "FieldLevelEncryptionProfileSizeExceeded"
 	}
 	return *e.ErrorCodeOverride
@@ -492,7 +492,7 @@ func (e *FunctionAlreadyExists) ErrorMessage() string {
 	return *e.Message
 }
 func (e *FunctionAlreadyExists) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "FunctionAlreadyExists"
 	}
 	return *e.ErrorCodeOverride
@@ -518,7 +518,7 @@ func (e *FunctionInUse) ErrorMessage() string {
 	return *e.Message
 }
 func (e *FunctionInUse) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "FunctionInUse"
 	}
 	return *e.ErrorCodeOverride
@@ -546,7 +546,7 @@ func (e *FunctionSizeLimitExceeded) ErrorMessage() string {
 	return *e.Message
 }
 func (e *FunctionSizeLimitExceeded) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "FunctionSizeLimitExceeded"
 	}
 	return *e.ErrorCodeOverride
@@ -572,7 +572,7 @@ func (e *IllegalDelete) ErrorMessage() string {
 	return *e.Message
 }
 func (e *IllegalDelete) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "IllegalDelete"
 	}
 	return *e.ErrorCodeOverride
@@ -599,7 +599,7 @@ func (e *IllegalFieldLevelEncryptionConfigAssociationWithCacheBehavior) ErrorMes
 	return *e.Message
 }
 func (e *IllegalFieldLevelEncryptionConfigAssociationWithCacheBehavior) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "IllegalFieldLevelEncryptionConfigAssociationWithCacheBehavior"
 	}
 	return *e.ErrorCodeOverride
@@ -628,7 +628,7 @@ func (e *IllegalOriginAccessConfiguration) ErrorMessage() string {
 	return *e.Message
 }
 func (e *IllegalOriginAccessConfiguration) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "IllegalOriginAccessConfiguration"
 	}
 	return *e.ErrorCodeOverride
@@ -654,7 +654,7 @@ func (e *IllegalUpdate) ErrorMessage() string {
 	return *e.Message
 }
 func (e *IllegalUpdate) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "IllegalUpdate"
 	}
 	return *e.ErrorCodeOverride
@@ -680,7 +680,7 @@ func (e *InconsistentQuantities) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InconsistentQuantities) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InconsistentQuantities"
 	}
 	return *e.ErrorCodeOverride
@@ -706,7 +706,7 @@ func (e *InvalidArgument) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidArgument) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidArgument"
 	}
 	return *e.ErrorCodeOverride
@@ -732,7 +732,7 @@ func (e *InvalidDefaultRootObject) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidDefaultRootObject) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidDefaultRootObject"
 	}
 	return *e.ErrorCodeOverride
@@ -759,7 +759,7 @@ func (e *InvalidDomainNameForOriginAccessControl) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidDomainNameForOriginAccessControl) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidDomainNameForOriginAccessControl"
 	}
 	return *e.ErrorCodeOverride
@@ -787,7 +787,7 @@ func (e *InvalidErrorCode) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidErrorCode) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidErrorCode"
 	}
 	return *e.ErrorCodeOverride
@@ -816,7 +816,7 @@ func (e *InvalidForwardCookies) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidForwardCookies) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidForwardCookies"
 	}
 	return *e.ErrorCodeOverride
@@ -842,7 +842,7 @@ func (e *InvalidFunctionAssociation) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidFunctionAssociation) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidFunctionAssociation"
 	}
 	return *e.ErrorCodeOverride
@@ -868,7 +868,7 @@ func (e *InvalidGeoRestrictionParameter) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidGeoRestrictionParameter) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidGeoRestrictionParameter"
 	}
 	return *e.ErrorCodeOverride
@@ -894,7 +894,7 @@ func (e *InvalidHeadersForS3Origin) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidHeadersForS3Origin) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidHeadersForS3Origin"
 	}
 	return *e.ErrorCodeOverride
@@ -920,7 +920,7 @@ func (e *InvalidIfMatchVersion) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidIfMatchVersion) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidIfMatchVersion"
 	}
 	return *e.ErrorCodeOverride
@@ -946,7 +946,7 @@ func (e *InvalidLambdaFunctionAssociation) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidLambdaFunctionAssociation) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidLambdaFunctionAssociation"
 	}
 	return *e.ErrorCodeOverride
@@ -972,7 +972,7 @@ func (e *InvalidLocationCode) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidLocationCode) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidLocationCode"
 	}
 	return *e.ErrorCodeOverride
@@ -998,7 +998,7 @@ func (e *InvalidMinimumProtocolVersion) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidMinimumProtocolVersion) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidMinimumProtocolVersion"
 	}
 	return *e.ErrorCodeOverride
@@ -1025,7 +1025,7 @@ func (e *InvalidOrigin) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidOrigin) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidOrigin"
 	}
 	return *e.ErrorCodeOverride
@@ -1051,7 +1051,7 @@ func (e *InvalidOriginAccessControl) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidOriginAccessControl) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidOriginAccessControl"
 	}
 	return *e.ErrorCodeOverride
@@ -1077,7 +1077,7 @@ func (e *InvalidOriginAccessIdentity) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidOriginAccessIdentity) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidOriginAccessIdentity"
 	}
 	return *e.ErrorCodeOverride
@@ -1103,7 +1103,7 @@ func (e *InvalidOriginKeepaliveTimeout) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidOriginKeepaliveTimeout) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidOriginKeepaliveTimeout"
 	}
 	return *e.ErrorCodeOverride
@@ -1129,7 +1129,7 @@ func (e *InvalidOriginReadTimeout) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidOriginReadTimeout) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidOriginReadTimeout"
 	}
 	return *e.ErrorCodeOverride
@@ -1156,7 +1156,7 @@ func (e *InvalidProtocolSettings) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidProtocolSettings) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidProtocolSettings"
 	}
 	return *e.ErrorCodeOverride
@@ -1182,7 +1182,7 @@ func (e *InvalidQueryStringParameters) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidQueryStringParameters) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidQueryStringParameters"
 	}
 	return *e.ErrorCodeOverride
@@ -1209,7 +1209,7 @@ func (e *InvalidRelativePath) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidRelativePath) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidRelativePath"
 	}
 	return *e.ErrorCodeOverride
@@ -1237,7 +1237,7 @@ func (e *InvalidRequiredProtocol) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidRequiredProtocol) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidRequiredProtocol"
 	}
 	return *e.ErrorCodeOverride
@@ -1263,7 +1263,7 @@ func (e *InvalidResponseCode) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidResponseCode) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidResponseCode"
 	}
 	return *e.ErrorCodeOverride
@@ -1289,7 +1289,7 @@ func (e *InvalidTagging) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidTagging) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidTagging"
 	}
 	return *e.ErrorCodeOverride
@@ -1315,7 +1315,7 @@ func (e *InvalidTTLOrder) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidTTLOrder) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidTTLOrder"
 	}
 	return *e.ErrorCodeOverride
@@ -1341,7 +1341,7 @@ func (e *InvalidViewerCertificate) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidViewerCertificate) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidViewerCertificate"
 	}
 	return *e.ErrorCodeOverride
@@ -1371,7 +1371,7 @@ func (e *InvalidWebACLId) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidWebACLId) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidWebACLId"
 	}
 	return *e.ErrorCodeOverride
@@ -1398,7 +1398,7 @@ func (e *KeyGroupAlreadyExists) ErrorMessage() string {
 	return *e.Message
 }
 func (e *KeyGroupAlreadyExists) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "KeyGroupAlreadyExists"
 	}
 	return *e.ErrorCodeOverride
@@ -1425,7 +1425,7 @@ func (e *MissingBody) ErrorMessage() string {
 	return *e.Message
 }
 func (e *MissingBody) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "MissingBody"
 	}
 	return *e.ErrorCodeOverride
@@ -1451,7 +1451,7 @@ func (e *MonitoringSubscriptionAlreadyExists) ErrorMessage() string {
 	return *e.Message
 }
 func (e *MonitoringSubscriptionAlreadyExists) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "MonitoringSubscriptionAlreadyExists"
 	}
 	return *e.ErrorCodeOverride
@@ -1479,7 +1479,7 @@ func (e *NoSuchCachePolicy) ErrorMessage() string {
 	return *e.Message
 }
 func (e *NoSuchCachePolicy) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "NoSuchCachePolicy"
 	}
 	return *e.ErrorCodeOverride
@@ -1505,7 +1505,7 @@ func (e *NoSuchCloudFrontOriginAccessIdentity) ErrorMessage() string {
 	return *e.Message
 }
 func (e *NoSuchCloudFrontOriginAccessIdentity) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "NoSuchCloudFrontOriginAccessIdentity"
 	}
 	return *e.ErrorCodeOverride
@@ -1533,7 +1533,7 @@ func (e *NoSuchContinuousDeploymentPolicy) ErrorMessage() string {
 	return *e.Message
 }
 func (e *NoSuchContinuousDeploymentPolicy) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "NoSuchContinuousDeploymentPolicy"
 	}
 	return *e.ErrorCodeOverride
@@ -1559,7 +1559,7 @@ func (e *NoSuchDistribution) ErrorMessage() string {
 	return *e.Message
 }
 func (e *NoSuchDistribution) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "NoSuchDistribution"
 	}
 	return *e.ErrorCodeOverride
@@ -1585,7 +1585,7 @@ func (e *NoSuchFieldLevelEncryptionConfig) ErrorMessage() string {
 	return *e.Message
 }
 func (e *NoSuchFieldLevelEncryptionConfig) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "NoSuchFieldLevelEncryptionConfig"
 	}
 	return *e.ErrorCodeOverride
@@ -1611,7 +1611,7 @@ func (e *NoSuchFieldLevelEncryptionProfile) ErrorMessage() string {
 	return *e.Message
 }
 func (e *NoSuchFieldLevelEncryptionProfile) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "NoSuchFieldLevelEncryptionProfile"
 	}
 	return *e.ErrorCodeOverride
@@ -1637,7 +1637,7 @@ func (e *NoSuchFunctionExists) ErrorMessage() string {
 	return *e.Message
 }
 func (e *NoSuchFunctionExists) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "NoSuchFunctionExists"
 	}
 	return *e.ErrorCodeOverride
@@ -1663,7 +1663,7 @@ func (e *NoSuchInvalidation) ErrorMessage() string {
 	return *e.Message
 }
 func (e *NoSuchInvalidation) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "NoSuchInvalidation"
 	}
 	return *e.ErrorCodeOverride
@@ -1689,7 +1689,7 @@ func (e *NoSuchMonitoringSubscription) ErrorMessage() string {
 	return *e.Message
 }
 func (e *NoSuchMonitoringSubscription) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "NoSuchMonitoringSubscription"
 	}
 	return *e.ErrorCodeOverride
@@ -1715,7 +1715,7 @@ func (e *NoSuchOrigin) ErrorMessage() string {
 	return *e.Message
 }
 func (e *NoSuchOrigin) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "NoSuchOrigin"
 	}
 	return *e.ErrorCodeOverride
@@ -1741,7 +1741,7 @@ func (e *NoSuchOriginAccessControl) ErrorMessage() string {
 	return *e.Message
 }
 func (e *NoSuchOriginAccessControl) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "NoSuchOriginAccessControl"
 	}
 	return *e.ErrorCodeOverride
@@ -1767,7 +1767,7 @@ func (e *NoSuchOriginRequestPolicy) ErrorMessage() string {
 	return *e.Message
 }
 func (e *NoSuchOriginRequestPolicy) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "NoSuchOriginRequestPolicy"
 	}
 	return *e.ErrorCodeOverride
@@ -1793,7 +1793,7 @@ func (e *NoSuchPublicKey) ErrorMessage() string {
 	return *e.Message
 }
 func (e *NoSuchPublicKey) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "NoSuchPublicKey"
 	}
 	return *e.ErrorCodeOverride
@@ -1819,7 +1819,7 @@ func (e *NoSuchRealtimeLogConfig) ErrorMessage() string {
 	return *e.Message
 }
 func (e *NoSuchRealtimeLogConfig) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "NoSuchRealtimeLogConfig"
 	}
 	return *e.ErrorCodeOverride
@@ -1845,7 +1845,7 @@ func (e *NoSuchResource) ErrorMessage() string {
 	return *e.Message
 }
 func (e *NoSuchResource) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "NoSuchResource"
 	}
 	return *e.ErrorCodeOverride
@@ -1871,7 +1871,7 @@ func (e *NoSuchResponseHeadersPolicy) ErrorMessage() string {
 	return *e.Message
 }
 func (e *NoSuchResponseHeadersPolicy) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "NoSuchResponseHeadersPolicy"
 	}
 	return *e.ErrorCodeOverride
@@ -1897,7 +1897,7 @@ func (e *NoSuchStreamingDistribution) ErrorMessage() string {
 	return *e.Message
 }
 func (e *NoSuchStreamingDistribution) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "NoSuchStreamingDistribution"
 	}
 	return *e.ErrorCodeOverride
@@ -1923,7 +1923,7 @@ func (e *OriginAccessControlAlreadyExists) ErrorMessage() string {
 	return *e.Message
 }
 func (e *OriginAccessControlAlreadyExists) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "OriginAccessControlAlreadyExists"
 	}
 	return *e.ErrorCodeOverride
@@ -1950,7 +1950,7 @@ func (e *OriginAccessControlInUse) ErrorMessage() string {
 	return *e.Message
 }
 func (e *OriginAccessControlInUse) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "OriginAccessControlInUse"
 	}
 	return *e.ErrorCodeOverride
@@ -1978,7 +1978,7 @@ func (e *OriginRequestPolicyAlreadyExists) ErrorMessage() string {
 	return *e.Message
 }
 func (e *OriginRequestPolicyAlreadyExists) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "OriginRequestPolicyAlreadyExists"
 	}
 	return *e.ErrorCodeOverride
@@ -2005,7 +2005,7 @@ func (e *OriginRequestPolicyInUse) ErrorMessage() string {
 	return *e.Message
 }
 func (e *OriginRequestPolicyInUse) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "OriginRequestPolicyInUse"
 	}
 	return *e.ErrorCodeOverride
@@ -2031,7 +2031,7 @@ func (e *PreconditionFailed) ErrorMessage() string {
 	return *e.Message
 }
 func (e *PreconditionFailed) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "PreconditionFailed"
 	}
 	return *e.ErrorCodeOverride
@@ -2057,7 +2057,7 @@ func (e *PublicKeyAlreadyExists) ErrorMessage() string {
 	return *e.Message
 }
 func (e *PublicKeyAlreadyExists) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "PublicKeyAlreadyExists"
 	}
 	return *e.ErrorCodeOverride
@@ -2083,7 +2083,7 @@ func (e *PublicKeyInUse) ErrorMessage() string {
 	return *e.Message
 }
 func (e *PublicKeyInUse) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "PublicKeyInUse"
 	}
 	return *e.ErrorCodeOverride
@@ -2109,7 +2109,7 @@ func (e *QueryArgProfileEmpty) ErrorMessage() string {
 	return *e.Message
 }
 func (e *QueryArgProfileEmpty) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "QueryArgProfileEmpty"
 	}
 	return *e.ErrorCodeOverride
@@ -2137,7 +2137,7 @@ func (e *RealtimeLogConfigAlreadyExists) ErrorMessage() string {
 	return *e.Message
 }
 func (e *RealtimeLogConfigAlreadyExists) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "RealtimeLogConfigAlreadyExists"
 	}
 	return *e.ErrorCodeOverride
@@ -2164,7 +2164,7 @@ func (e *RealtimeLogConfigInUse) ErrorMessage() string {
 	return *e.Message
 }
 func (e *RealtimeLogConfigInUse) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "RealtimeLogConfigInUse"
 	}
 	return *e.ErrorCodeOverride
@@ -2191,7 +2191,7 @@ func (e *RealtimeLogConfigOwnerMismatch) ErrorMessage() string {
 	return *e.Message
 }
 func (e *RealtimeLogConfigOwnerMismatch) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "RealtimeLogConfigOwnerMismatch"
 	}
 	return *e.ErrorCodeOverride
@@ -2217,7 +2217,7 @@ func (e *ResourceInUse) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceInUse) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceInUse"
 	}
 	return *e.ErrorCodeOverride
@@ -2245,7 +2245,7 @@ func (e *ResponseHeadersPolicyAlreadyExists) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResponseHeadersPolicyAlreadyExists) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResponseHeadersPolicyAlreadyExists"
 	}
 	return *e.ErrorCodeOverride
@@ -2274,7 +2274,7 @@ func (e *ResponseHeadersPolicyInUse) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResponseHeadersPolicyInUse) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResponseHeadersPolicyInUse"
 	}
 	return *e.ErrorCodeOverride
@@ -2300,7 +2300,7 @@ func (e *StagingDistributionInUse) ErrorMessage() string {
 	return *e.Message
 }
 func (e *StagingDistributionInUse) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "StagingDistributionInUse"
 	}
 	return *e.ErrorCodeOverride
@@ -2327,7 +2327,7 @@ func (e *StreamingDistributionAlreadyExists) ErrorMessage() string {
 	return *e.Message
 }
 func (e *StreamingDistributionAlreadyExists) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "StreamingDistributionAlreadyExists"
 	}
 	return *e.ErrorCodeOverride
@@ -2356,7 +2356,7 @@ func (e *StreamingDistributionNotDisabled) ErrorMessage() string {
 	return *e.Message
 }
 func (e *StreamingDistributionNotDisabled) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "StreamingDistributionNotDisabled"
 	}
 	return *e.ErrorCodeOverride
@@ -2382,7 +2382,7 @@ func (e *TestFunctionFailed) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TestFunctionFailed) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TestFunctionFailed"
 	}
 	return *e.ErrorCodeOverride
@@ -2411,7 +2411,7 @@ func (e *TooLongCSPInResponseHeadersPolicy) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TooLongCSPInResponseHeadersPolicy) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TooLongCSPInResponseHeadersPolicy"
 	}
 	return *e.ErrorCodeOverride
@@ -2437,7 +2437,7 @@ func (e *TooManyCacheBehaviors) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TooManyCacheBehaviors) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TooManyCacheBehaviors"
 	}
 	return *e.ErrorCodeOverride
@@ -2466,7 +2466,7 @@ func (e *TooManyCachePolicies) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TooManyCachePolicies) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TooManyCachePolicies"
 	}
 	return *e.ErrorCodeOverride
@@ -2492,7 +2492,7 @@ func (e *TooManyCertificates) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TooManyCertificates) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TooManyCertificates"
 	}
 	return *e.ErrorCodeOverride
@@ -2519,7 +2519,7 @@ func (e *TooManyCloudFrontOriginAccessIdentities) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TooManyCloudFrontOriginAccessIdentities) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TooManyCloudFrontOriginAccessIdentities"
 	}
 	return *e.ErrorCodeOverride
@@ -2548,7 +2548,7 @@ func (e *TooManyContinuousDeploymentPolicies) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TooManyContinuousDeploymentPolicies) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TooManyContinuousDeploymentPolicies"
 	}
 	return *e.ErrorCodeOverride
@@ -2577,7 +2577,7 @@ func (e *TooManyCookieNamesInWhiteList) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TooManyCookieNamesInWhiteList) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TooManyCookieNamesInWhiteList"
 	}
 	return *e.ErrorCodeOverride
@@ -2606,7 +2606,7 @@ func (e *TooManyCookiesInCachePolicy) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TooManyCookiesInCachePolicy) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TooManyCookiesInCachePolicy"
 	}
 	return *e.ErrorCodeOverride
@@ -2635,7 +2635,7 @@ func (e *TooManyCookiesInOriginRequestPolicy) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TooManyCookiesInOriginRequestPolicy) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TooManyCookiesInOriginRequestPolicy"
 	}
 	return *e.ErrorCodeOverride
@@ -2666,7 +2666,7 @@ func (e *TooManyCustomHeadersInResponseHeadersPolicy) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TooManyCustomHeadersInResponseHeadersPolicy) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TooManyCustomHeadersInResponseHeadersPolicy"
 	}
 	return *e.ErrorCodeOverride
@@ -2694,7 +2694,7 @@ func (e *TooManyDistributionCNAMEs) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TooManyDistributionCNAMEs) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TooManyDistributionCNAMEs"
 	}
 	return *e.ErrorCodeOverride
@@ -2721,7 +2721,7 @@ func (e *TooManyDistributions) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TooManyDistributions) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TooManyDistributions"
 	}
 	return *e.ErrorCodeOverride
@@ -2750,7 +2750,7 @@ func (e *TooManyDistributionsAssociatedToCachePolicy) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TooManyDistributionsAssociatedToCachePolicy) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TooManyDistributionsAssociatedToCachePolicy"
 	}
 	return *e.ErrorCodeOverride
@@ -2779,7 +2779,7 @@ func (e *TooManyDistributionsAssociatedToFieldLevelEncryptionConfig) ErrorMessag
 	return *e.Message
 }
 func (e *TooManyDistributionsAssociatedToFieldLevelEncryptionConfig) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TooManyDistributionsAssociatedToFieldLevelEncryptionConfig"
 	}
 	return *e.ErrorCodeOverride
@@ -2810,7 +2810,7 @@ func (e *TooManyDistributionsAssociatedToKeyGroup) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TooManyDistributionsAssociatedToKeyGroup) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TooManyDistributionsAssociatedToKeyGroup"
 	}
 	return *e.ErrorCodeOverride
@@ -2841,7 +2841,7 @@ func (e *TooManyDistributionsAssociatedToOriginAccessControl) ErrorMessage() str
 	return *e.Message
 }
 func (e *TooManyDistributionsAssociatedToOriginAccessControl) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TooManyDistributionsAssociatedToOriginAccessControl"
 	}
 	return *e.ErrorCodeOverride
@@ -2872,7 +2872,7 @@ func (e *TooManyDistributionsAssociatedToOriginRequestPolicy) ErrorMessage() str
 	return *e.Message
 }
 func (e *TooManyDistributionsAssociatedToOriginRequestPolicy) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TooManyDistributionsAssociatedToOriginRequestPolicy"
 	}
 	return *e.ErrorCodeOverride
@@ -2903,7 +2903,7 @@ func (e *TooManyDistributionsAssociatedToResponseHeadersPolicy) ErrorMessage() s
 	return *e.Message
 }
 func (e *TooManyDistributionsAssociatedToResponseHeadersPolicy) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TooManyDistributionsAssociatedToResponseHeadersPolicy"
 	}
 	return *e.ErrorCodeOverride
@@ -2934,7 +2934,7 @@ func (e *TooManyDistributionsWithFunctionAssociations) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TooManyDistributionsWithFunctionAssociations) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TooManyDistributionsWithFunctionAssociations"
 	}
 	return *e.ErrorCodeOverride
@@ -2963,7 +2963,7 @@ func (e *TooManyDistributionsWithLambdaAssociations) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TooManyDistributionsWithLambdaAssociations) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TooManyDistributionsWithLambdaAssociations"
 	}
 	return *e.ErrorCodeOverride
@@ -2992,7 +2992,7 @@ func (e *TooManyDistributionsWithSingleFunctionARN) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TooManyDistributionsWithSingleFunctionARN) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TooManyDistributionsWithSingleFunctionARN"
 	}
 	return *e.ErrorCodeOverride
@@ -3021,7 +3021,7 @@ func (e *TooManyFieldLevelEncryptionConfigs) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TooManyFieldLevelEncryptionConfigs) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TooManyFieldLevelEncryptionConfigs"
 	}
 	return *e.ErrorCodeOverride
@@ -3050,7 +3050,7 @@ func (e *TooManyFieldLevelEncryptionContentTypeProfiles) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TooManyFieldLevelEncryptionContentTypeProfiles) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TooManyFieldLevelEncryptionContentTypeProfiles"
 	}
 	return *e.ErrorCodeOverride
@@ -3079,7 +3079,7 @@ func (e *TooManyFieldLevelEncryptionEncryptionEntities) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TooManyFieldLevelEncryptionEncryptionEntities) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TooManyFieldLevelEncryptionEncryptionEntities"
 	}
 	return *e.ErrorCodeOverride
@@ -3108,7 +3108,7 @@ func (e *TooManyFieldLevelEncryptionFieldPatterns) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TooManyFieldLevelEncryptionFieldPatterns) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TooManyFieldLevelEncryptionFieldPatterns"
 	}
 	return *e.ErrorCodeOverride
@@ -3136,7 +3136,7 @@ func (e *TooManyFieldLevelEncryptionProfiles) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TooManyFieldLevelEncryptionProfiles) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TooManyFieldLevelEncryptionProfiles"
 	}
 	return *e.ErrorCodeOverride
@@ -3165,7 +3165,7 @@ func (e *TooManyFieldLevelEncryptionQueryArgProfiles) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TooManyFieldLevelEncryptionQueryArgProfiles) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TooManyFieldLevelEncryptionQueryArgProfiles"
 	}
 	return *e.ErrorCodeOverride
@@ -3196,7 +3196,7 @@ func (e *TooManyFunctionAssociations) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TooManyFunctionAssociations) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TooManyFunctionAssociations"
 	}
 	return *e.ErrorCodeOverride
@@ -3225,7 +3225,7 @@ func (e *TooManyFunctions) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TooManyFunctions) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TooManyFunctions"
 	}
 	return *e.ErrorCodeOverride
@@ -3254,7 +3254,7 @@ func (e *TooManyHeadersInCachePolicy) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TooManyHeadersInCachePolicy) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TooManyHeadersInCachePolicy"
 	}
 	return *e.ErrorCodeOverride
@@ -3280,7 +3280,7 @@ func (e *TooManyHeadersInForwardedValues) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TooManyHeadersInForwardedValues) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TooManyHeadersInForwardedValues"
 	}
 	return *e.ErrorCodeOverride
@@ -3309,7 +3309,7 @@ func (e *TooManyHeadersInOriginRequestPolicy) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TooManyHeadersInOriginRequestPolicy) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TooManyHeadersInOriginRequestPolicy"
 	}
 	return *e.ErrorCodeOverride
@@ -3338,7 +3338,7 @@ func (e *TooManyInvalidationsInProgress) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TooManyInvalidationsInProgress) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TooManyInvalidationsInProgress"
 	}
 	return *e.ErrorCodeOverride
@@ -3367,7 +3367,7 @@ func (e *TooManyKeyGroups) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TooManyKeyGroups) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TooManyKeyGroups"
 	}
 	return *e.ErrorCodeOverride
@@ -3396,7 +3396,7 @@ func (e *TooManyKeyGroupsAssociatedToDistribution) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TooManyKeyGroupsAssociatedToDistribution) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TooManyKeyGroupsAssociatedToDistribution"
 	}
 	return *e.ErrorCodeOverride
@@ -3425,7 +3425,7 @@ func (e *TooManyLambdaFunctionAssociations) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TooManyLambdaFunctionAssociations) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TooManyLambdaFunctionAssociations"
 	}
 	return *e.ErrorCodeOverride
@@ -3454,7 +3454,7 @@ func (e *TooManyOriginAccessControls) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TooManyOriginAccessControls) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TooManyOriginAccessControls"
 	}
 	return *e.ErrorCodeOverride
@@ -3480,7 +3480,7 @@ func (e *TooManyOriginCustomHeaders) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TooManyOriginCustomHeaders) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TooManyOriginCustomHeaders"
 	}
 	return *e.ErrorCodeOverride
@@ -3507,7 +3507,7 @@ func (e *TooManyOriginGroupsPerDistribution) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TooManyOriginGroupsPerDistribution) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TooManyOriginGroupsPerDistribution"
 	}
 	return *e.ErrorCodeOverride
@@ -3538,7 +3538,7 @@ func (e *TooManyOriginRequestPolicies) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TooManyOriginRequestPolicies) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TooManyOriginRequestPolicies"
 	}
 	return *e.ErrorCodeOverride
@@ -3564,7 +3564,7 @@ func (e *TooManyOrigins) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TooManyOrigins) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TooManyOrigins"
 	}
 	return *e.ErrorCodeOverride
@@ -3591,7 +3591,7 @@ func (e *TooManyPublicKeys) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TooManyPublicKeys) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TooManyPublicKeys"
 	}
 	return *e.ErrorCodeOverride
@@ -3620,7 +3620,7 @@ func (e *TooManyPublicKeysInKeyGroup) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TooManyPublicKeysInKeyGroup) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TooManyPublicKeysInKeyGroup"
 	}
 	return *e.ErrorCodeOverride
@@ -3646,7 +3646,7 @@ func (e *TooManyQueryStringParameters) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TooManyQueryStringParameters) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TooManyQueryStringParameters"
 	}
 	return *e.ErrorCodeOverride
@@ -3675,7 +3675,7 @@ func (e *TooManyQueryStringsInCachePolicy) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TooManyQueryStringsInCachePolicy) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TooManyQueryStringsInCachePolicy"
 	}
 	return *e.ErrorCodeOverride
@@ -3704,7 +3704,7 @@ func (e *TooManyQueryStringsInOriginRequestPolicy) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TooManyQueryStringsInOriginRequestPolicy) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TooManyQueryStringsInOriginRequestPolicy"
 	}
 	return *e.ErrorCodeOverride
@@ -3735,7 +3735,7 @@ func (e *TooManyRealtimeLogConfigs) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TooManyRealtimeLogConfigs) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TooManyRealtimeLogConfigs"
 	}
 	return *e.ErrorCodeOverride
@@ -3764,7 +3764,7 @@ func (e *TooManyRemoveHeadersInResponseHeadersPolicy) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TooManyRemoveHeadersInResponseHeadersPolicy) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TooManyRemoveHeadersInResponseHeadersPolicy"
 	}
 	return *e.ErrorCodeOverride
@@ -3795,7 +3795,7 @@ func (e *TooManyResponseHeadersPolicies) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TooManyResponseHeadersPolicies) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TooManyResponseHeadersPolicies"
 	}
 	return *e.ErrorCodeOverride
@@ -3821,7 +3821,7 @@ func (e *TooManyStreamingDistributionCNAMEs) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TooManyStreamingDistributionCNAMEs) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TooManyStreamingDistributionCNAMEs"
 	}
 	return *e.ErrorCodeOverride
@@ -3850,7 +3850,7 @@ func (e *TooManyStreamingDistributions) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TooManyStreamingDistributions) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TooManyStreamingDistributions"
 	}
 	return *e.ErrorCodeOverride
@@ -3876,7 +3876,7 @@ func (e *TooManyTrustedSigners) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TooManyTrustedSigners) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TooManyTrustedSigners"
 	}
 	return *e.ErrorCodeOverride
@@ -3902,7 +3902,7 @@ func (e *TrustedKeyGroupDoesNotExist) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TrustedKeyGroupDoesNotExist) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TrustedKeyGroupDoesNotExist"
 	}
 	return *e.ErrorCodeOverride
@@ -3928,7 +3928,7 @@ func (e *TrustedSignerDoesNotExist) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TrustedSignerDoesNotExist) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TrustedSignerDoesNotExist"
 	}
 	return *e.ErrorCodeOverride
@@ -3954,7 +3954,7 @@ func (e *UnsupportedOperation) ErrorMessage() string {
 	return *e.Message
 }
 func (e *UnsupportedOperation) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "UnsupportedOperation"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/cloudhsm/types/errors.go b/service/cloudhsm/types/errors.go
index cb61524321a..be4b16e623e 100644
--- a/service/cloudhsm/types/errors.go
+++ b/service/cloudhsm/types/errors.go
@@ -28,7 +28,7 @@ func (e *CloudHsmInternalException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *CloudHsmInternalException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "CloudHsmInternalException"
 	}
 	return *e.ErrorCodeOverride
@@ -56,7 +56,7 @@ func (e *CloudHsmServiceException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *CloudHsmServiceException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "CloudHsmServiceException"
 	}
 	return *e.ErrorCodeOverride
@@ -84,7 +84,7 @@ func (e *InvalidRequestException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidRequestException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidRequestException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/cloudhsmv2/types/errors.go b/service/cloudhsmv2/types/errors.go
index 60fb2492f96..13c9437c3bb 100644
--- a/service/cloudhsmv2/types/errors.go
+++ b/service/cloudhsmv2/types/errors.go
@@ -27,7 +27,7 @@ func (e *CloudHsmAccessDeniedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *CloudHsmAccessDeniedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "CloudHsmAccessDeniedException"
 	}
 	return *e.ErrorCodeOverride
@@ -54,7 +54,7 @@ func (e *CloudHsmInternalFailureException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *CloudHsmInternalFailureException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "CloudHsmInternalFailureException"
 	}
 	return *e.ErrorCodeOverride
@@ -80,7 +80,7 @@ func (e *CloudHsmInvalidRequestException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *CloudHsmInvalidRequestException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "CloudHsmInvalidRequestException"
 	}
 	return *e.ErrorCodeOverride
@@ -106,7 +106,7 @@ func (e *CloudHsmResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *CloudHsmResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "CloudHsmResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -132,7 +132,7 @@ func (e *CloudHsmServiceException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *CloudHsmServiceException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "CloudHsmServiceException"
 	}
 	return *e.ErrorCodeOverride
@@ -159,7 +159,7 @@ func (e *CloudHsmTagException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *CloudHsmTagException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "CloudHsmTagException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/cloudsearch/types/errors.go b/service/cloudsearch/types/errors.go
index b2bb1025778..6bd5367aef3 100644
--- a/service/cloudsearch/types/errors.go
+++ b/service/cloudsearch/types/errors.go
@@ -28,7 +28,7 @@ func (e *BaseException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *BaseException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "BaseException"
 	}
 	return *e.ErrorCodeOverride
@@ -56,7 +56,7 @@ func (e *DisabledOperationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DisabledOperationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DisabledAction"
 	}
 	return *e.ErrorCodeOverride
@@ -86,7 +86,7 @@ func (e *InternalException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalException"
 	}
 	return *e.ErrorCodeOverride
@@ -114,7 +114,7 @@ func (e *InvalidTypeException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidTypeException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidType"
 	}
 	return *e.ErrorCodeOverride
@@ -142,7 +142,7 @@ func (e *LimitExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *LimitExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "LimitExceeded"
 	}
 	return *e.ErrorCodeOverride
@@ -171,7 +171,7 @@ func (e *ResourceAlreadyExistsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceAlreadyExistsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceAlreadyExists"
 	}
 	return *e.ErrorCodeOverride
@@ -200,7 +200,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFound"
 	}
 	return *e.ErrorCodeOverride
@@ -228,7 +228,7 @@ func (e *ValidationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ValidationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ValidationException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/cloudsearchdomain/types/errors.go b/service/cloudsearchdomain/types/errors.go
index 11af8e740aa..c7e9a7e5f37 100644
--- a/service/cloudsearchdomain/types/errors.go
+++ b/service/cloudsearchdomain/types/errors.go
@@ -28,7 +28,7 @@ func (e *DocumentServiceException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DocumentServiceException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DocumentServiceException"
 	}
 	return *e.ErrorCodeOverride
@@ -54,7 +54,7 @@ func (e *SearchException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *SearchException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "SearchException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/cloudtrail/types/errors.go b/service/cloudtrail/types/errors.go
index c434340e6d5..f86e36a01bc 100644
--- a/service/cloudtrail/types/errors.go
+++ b/service/cloudtrail/types/errors.go
@@ -27,7 +27,7 @@ func (e *AccountHasOngoingImportException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AccountHasOngoingImportException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AccountHasOngoingImportException"
 	}
 	return *e.ErrorCodeOverride
@@ -54,7 +54,7 @@ func (e *AccountNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AccountNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AccountNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -81,7 +81,7 @@ func (e *AccountNotRegisteredException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AccountNotRegisteredException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AccountNotRegisteredException"
 	}
 	return *e.ErrorCodeOverride
@@ -108,7 +108,7 @@ func (e *AccountRegisteredException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AccountRegisteredException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AccountRegisteredException"
 	}
 	return *e.ErrorCodeOverride
@@ -135,7 +135,7 @@ func (e *CannotDelegateManagementAccountException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *CannotDelegateManagementAccountException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "CannotDelegateManagementAccountException"
 	}
 	return *e.ErrorCodeOverride
@@ -163,7 +163,7 @@ func (e *ChannelAlreadyExistsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ChannelAlreadyExistsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ChannelAlreadyExistsException"
 	}
 	return *e.ErrorCodeOverride
@@ -189,7 +189,7 @@ func (e *ChannelARNInvalidException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ChannelARNInvalidException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ChannelARNInvalidException"
 	}
 	return *e.ErrorCodeOverride
@@ -216,7 +216,7 @@ func (e *ChannelExistsForEDSException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ChannelExistsForEDSException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ChannelExistsForEDSException"
 	}
 	return *e.ErrorCodeOverride
@@ -242,7 +242,7 @@ func (e *ChannelMaxLimitExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ChannelMaxLimitExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ChannelMaxLimitExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -268,7 +268,7 @@ func (e *ChannelNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ChannelNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ChannelNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -299,7 +299,7 @@ func (e *CloudTrailAccessNotEnabledException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *CloudTrailAccessNotEnabledException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "CloudTrailAccessNotEnabledException"
 	}
 	return *e.ErrorCodeOverride
@@ -335,7 +335,7 @@ func (e *CloudTrailARNInvalidException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *CloudTrailARNInvalidException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "CloudTrailARNInvalidException"
 	}
 	return *e.ErrorCodeOverride
@@ -364,7 +364,7 @@ func (e *CloudTrailInvalidClientTokenIdException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *CloudTrailInvalidClientTokenIdException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "CloudTrailInvalidClientTokenIdException"
 	}
 	return *e.ErrorCodeOverride
@@ -392,7 +392,7 @@ func (e *CloudWatchLogsDeliveryUnavailableException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *CloudWatchLogsDeliveryUnavailableException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "CloudWatchLogsDeliveryUnavailableException"
 	}
 	return *e.ErrorCodeOverride
@@ -424,7 +424,7 @@ func (e *ConflictException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ConflictException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ConflictException"
 	}
 	return *e.ErrorCodeOverride
@@ -451,7 +451,7 @@ func (e *DelegatedAdminAccountLimitExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DelegatedAdminAccountLimitExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DelegatedAdminAccountLimitExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -479,7 +479,7 @@ func (e *EventDataStoreAlreadyExistsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *EventDataStoreAlreadyExistsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "EventDataStoreAlreadyExistsException"
 	}
 	return *e.ErrorCodeOverride
@@ -508,7 +508,7 @@ func (e *EventDataStoreARNInvalidException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *EventDataStoreARNInvalidException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "EventDataStoreARNInvalidException"
 	}
 	return *e.ErrorCodeOverride
@@ -535,7 +535,7 @@ func (e *EventDataStoreHasOngoingImportException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *EventDataStoreHasOngoingImportException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "EventDataStoreHasOngoingImportException"
 	}
 	return *e.ErrorCodeOverride
@@ -563,7 +563,7 @@ func (e *EventDataStoreMaxLimitExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *EventDataStoreMaxLimitExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "EventDataStoreMaxLimitExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -591,7 +591,7 @@ func (e *EventDataStoreNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *EventDataStoreNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "EventDataStoreNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -618,7 +618,7 @@ func (e *EventDataStoreTerminationProtectedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *EventDataStoreTerminationProtectedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "EventDataStoreTerminationProtectedException"
 	}
 	return *e.ErrorCodeOverride
@@ -646,7 +646,7 @@ func (e *ImportNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ImportNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ImportNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -672,7 +672,7 @@ func (e *InactiveEventDataStoreException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InactiveEventDataStoreException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InactiveEventDataStoreException"
 	}
 	return *e.ErrorCodeOverride
@@ -699,7 +699,7 @@ func (e *InactiveQueryException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InactiveQueryException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InactiveQueryException"
 	}
 	return *e.ErrorCodeOverride
@@ -726,7 +726,7 @@ func (e *InsightNotEnabledException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InsightNotEnabledException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InsightNotEnabledException"
 	}
 	return *e.ErrorCodeOverride
@@ -754,7 +754,7 @@ func (e *InsufficientDependencyServiceAccessPermissionException) ErrorMessage()
 	return *e.Message
 }
 func (e *InsufficientDependencyServiceAccessPermissionException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InsufficientDependencyServiceAccessPermissionException"
 	}
 	return *e.ErrorCodeOverride
@@ -783,7 +783,7 @@ func (e *InsufficientEncryptionPolicyException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InsufficientEncryptionPolicyException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InsufficientEncryptionPolicyException"
 	}
 	return *e.ErrorCodeOverride
@@ -811,7 +811,7 @@ func (e *InsufficientS3BucketPolicyException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InsufficientS3BucketPolicyException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InsufficientS3BucketPolicyException"
 	}
 	return *e.ErrorCodeOverride
@@ -840,7 +840,7 @@ func (e *InsufficientSnsTopicPolicyException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InsufficientSnsTopicPolicyException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InsufficientSnsTopicPolicyException"
 	}
 	return *e.ErrorCodeOverride
@@ -869,7 +869,7 @@ func (e *InvalidCloudWatchLogsLogGroupArnException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidCloudWatchLogsLogGroupArnException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidCloudWatchLogsLogGroupArnException"
 	}
 	return *e.ErrorCodeOverride
@@ -897,7 +897,7 @@ func (e *InvalidCloudWatchLogsRoleArnException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidCloudWatchLogsRoleArnException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidCloudWatchLogsRoleArnException"
 	}
 	return *e.ErrorCodeOverride
@@ -929,7 +929,7 @@ func (e *InvalidDateRangeException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidDateRangeException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidDateRangeException"
 	}
 	return *e.ErrorCodeOverride
@@ -956,7 +956,7 @@ func (e *InvalidEventCategoryException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidEventCategoryException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidEventCategoryException"
 	}
 	return *e.ErrorCodeOverride
@@ -983,7 +983,7 @@ func (e *InvalidEventDataStoreCategoryException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidEventDataStoreCategoryException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidEventDataStoreCategoryException"
 	}
 	return *e.ErrorCodeOverride
@@ -1011,7 +1011,7 @@ func (e *InvalidEventDataStoreStatusException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidEventDataStoreStatusException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidEventDataStoreStatusException"
 	}
 	return *e.ErrorCodeOverride
@@ -1062,7 +1062,7 @@ func (e *InvalidEventSelectorsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidEventSelectorsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidEventSelectorsException"
 	}
 	return *e.ErrorCodeOverride
@@ -1089,7 +1089,7 @@ func (e *InvalidHomeRegionException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidHomeRegionException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidHomeRegionException"
 	}
 	return *e.ErrorCodeOverride
@@ -1116,7 +1116,7 @@ func (e *InvalidImportSourceException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidImportSourceException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidImportSourceException"
 	}
 	return *e.ErrorCodeOverride
@@ -1145,7 +1145,7 @@ func (e *InvalidInsightSelectorsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidInsightSelectorsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidInsightSelectorsException"
 	}
 	return *e.ErrorCodeOverride
@@ -1171,7 +1171,7 @@ func (e *InvalidKmsKeyIdException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidKmsKeyIdException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidKmsKeyIdException"
 	}
 	return *e.ErrorCodeOverride
@@ -1197,7 +1197,7 @@ func (e *InvalidLookupAttributesException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidLookupAttributesException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidLookupAttributesException"
 	}
 	return *e.ErrorCodeOverride
@@ -1223,7 +1223,7 @@ func (e *InvalidMaxResultsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidMaxResultsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidMaxResultsException"
 	}
 	return *e.ErrorCodeOverride
@@ -1250,7 +1250,7 @@ func (e *InvalidNextTokenException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidNextTokenException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidNextTokenException"
 	}
 	return *e.ErrorCodeOverride
@@ -1277,7 +1277,7 @@ func (e *InvalidParameterCombinationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidParameterCombinationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidParameterCombinationException"
 	}
 	return *e.ErrorCodeOverride
@@ -1305,7 +1305,7 @@ func (e *InvalidParameterException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidParameterException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidParameterException"
 	}
 	return *e.ErrorCodeOverride
@@ -1335,7 +1335,7 @@ func (e *InvalidQueryStatementException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidQueryStatementException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidQueryStatementException"
 	}
 	return *e.ErrorCodeOverride
@@ -1361,7 +1361,7 @@ func (e *InvalidQueryStatusException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidQueryStatusException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidQueryStatusException"
 	}
 	return *e.ErrorCodeOverride
@@ -1387,7 +1387,7 @@ func (e *InvalidS3BucketNameException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidS3BucketNameException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidS3BucketNameException"
 	}
 	return *e.ErrorCodeOverride
@@ -1413,7 +1413,7 @@ func (e *InvalidS3PrefixException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidS3PrefixException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidS3PrefixException"
 	}
 	return *e.ErrorCodeOverride
@@ -1439,7 +1439,7 @@ func (e *InvalidSnsTopicNameException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidSnsTopicNameException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidSnsTopicNameException"
 	}
 	return *e.ErrorCodeOverride
@@ -1465,7 +1465,7 @@ func (e *InvalidSourceException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidSourceException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidSourceException"
 	}
 	return *e.ErrorCodeOverride
@@ -1492,7 +1492,7 @@ func (e *InvalidTagParameterException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidTagParameterException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidTagParameterException"
 	}
 	return *e.ErrorCodeOverride
@@ -1519,7 +1519,7 @@ func (e *InvalidTimeRangeException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidTimeRangeException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidTimeRangeException"
 	}
 	return *e.ErrorCodeOverride
@@ -1545,7 +1545,7 @@ func (e *InvalidTokenException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidTokenException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidTokenException"
 	}
 	return *e.ErrorCodeOverride
@@ -1587,7 +1587,7 @@ func (e *InvalidTrailNameException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidTrailNameException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidTrailNameException"
 	}
 	return *e.ErrorCodeOverride
@@ -1614,7 +1614,7 @@ func (e *KmsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *KmsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "KmsException"
 	}
 	return *e.ErrorCodeOverride
@@ -1640,7 +1640,7 @@ func (e *KmsKeyDisabledException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *KmsKeyDisabledException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "KmsKeyDisabledException"
 	}
 	return *e.ErrorCodeOverride
@@ -1668,7 +1668,7 @@ func (e *KmsKeyNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *KmsKeyNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "KmsKeyNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -1695,7 +1695,7 @@ func (e *MaxConcurrentQueriesException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *MaxConcurrentQueriesException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "MaxConcurrentQueriesException"
 	}
 	return *e.ErrorCodeOverride
@@ -1721,7 +1721,7 @@ func (e *MaximumNumberOfTrailsExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *MaximumNumberOfTrailsExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "MaximumNumberOfTrailsExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -1750,7 +1750,7 @@ func (e *NoManagementAccountSLRExistsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *NoManagementAccountSLRExistsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "NoManagementAccountSLRExistsException"
 	}
 	return *e.ErrorCodeOverride
@@ -1779,7 +1779,7 @@ func (e *NotOrganizationManagementAccountException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *NotOrganizationManagementAccountException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "NotOrganizationManagementAccountException"
 	}
 	return *e.ErrorCodeOverride
@@ -1813,7 +1813,7 @@ func (e *NotOrganizationMasterAccountException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *NotOrganizationMasterAccountException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "NotOrganizationMasterAccountException"
 	}
 	return *e.ErrorCodeOverride
@@ -1841,7 +1841,7 @@ func (e *OperationNotPermittedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *OperationNotPermittedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "OperationNotPermittedException"
 	}
 	return *e.ErrorCodeOverride
@@ -1869,7 +1869,7 @@ func (e *OrganizationNotInAllFeaturesModeException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *OrganizationNotInAllFeaturesModeException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "OrganizationNotInAllFeaturesModeException"
 	}
 	return *e.ErrorCodeOverride
@@ -1899,7 +1899,7 @@ func (e *OrganizationsNotInUseException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *OrganizationsNotInUseException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "OrganizationsNotInUseException"
 	}
 	return *e.ErrorCodeOverride
@@ -1925,7 +1925,7 @@ func (e *QueryIdNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *QueryIdNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "QueryIdNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -1953,7 +1953,7 @@ func (e *ResourceARNNotValidException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceARNNotValidException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceARNNotValidException"
 	}
 	return *e.ErrorCodeOverride
@@ -1979,7 +1979,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -2005,7 +2005,7 @@ func (e *ResourcePolicyNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourcePolicyNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourcePolicyNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -2042,7 +2042,7 @@ func (e *ResourcePolicyNotValidException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourcePolicyNotValidException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourcePolicyNotValidException"
 	}
 	return *e.ErrorCodeOverride
@@ -2069,7 +2069,7 @@ func (e *ResourceTypeNotSupportedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceTypeNotSupportedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceTypeNotSupportedException"
 	}
 	return *e.ErrorCodeOverride
@@ -2095,7 +2095,7 @@ func (e *S3BucketDoesNotExistException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *S3BucketDoesNotExistException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "S3BucketDoesNotExistException"
 	}
 	return *e.ErrorCodeOverride
@@ -2122,7 +2122,7 @@ func (e *TagsLimitExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TagsLimitExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TagsLimitExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -2148,7 +2148,7 @@ func (e *TrailAlreadyExistsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TrailAlreadyExistsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TrailAlreadyExistsException"
 	}
 	return *e.ErrorCodeOverride
@@ -2174,7 +2174,7 @@ func (e *TrailNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TrailNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TrailNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -2200,7 +2200,7 @@ func (e *TrailNotProvidedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TrailNotProvidedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TrailNotProvidedException"
 	}
 	return *e.ErrorCodeOverride
@@ -2226,7 +2226,7 @@ func (e *UnsupportedOperationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *UnsupportedOperationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "UnsupportedOperationException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/cloudtraildata/types/errors.go b/service/cloudtraildata/types/errors.go
index c4b04e4117b..35b60796406 100644
--- a/service/cloudtraildata/types/errors.go
+++ b/service/cloudtraildata/types/errors.go
@@ -26,7 +26,7 @@ func (e *ChannelInsufficientPermission) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ChannelInsufficientPermission) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ChannelInsufficientPermission"
 	}
 	return *e.ErrorCodeOverride
@@ -52,7 +52,7 @@ func (e *ChannelNotFound) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ChannelNotFound) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ChannelNotFound"
 	}
 	return *e.ErrorCodeOverride
@@ -78,7 +78,7 @@ func (e *ChannelUnsupportedSchema) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ChannelUnsupportedSchema) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ChannelUnsupportedSchema"
 	}
 	return *e.ErrorCodeOverride
@@ -104,7 +104,7 @@ func (e *DuplicatedAuditEventId) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DuplicatedAuditEventId) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DuplicatedAuditEventId"
 	}
 	return *e.ErrorCodeOverride
@@ -130,7 +130,7 @@ func (e *InvalidChannelARN) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidChannelARN) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidChannelARN"
 	}
 	return *e.ErrorCodeOverride
@@ -156,7 +156,7 @@ func (e *UnsupportedOperationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *UnsupportedOperationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "UnsupportedOperationException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/cloudwatch/types/errors.go b/service/cloudwatch/types/errors.go
index fea1839a616..6b4dbd93a01 100644
--- a/service/cloudwatch/types/errors.go
+++ b/service/cloudwatch/types/errors.go
@@ -26,7 +26,7 @@ func (e *ConcurrentModificationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ConcurrentModificationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ConcurrentModificationException"
 	}
 	return *e.ErrorCodeOverride
@@ -54,7 +54,7 @@ func (e *DashboardInvalidInputError) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DashboardInvalidInputError) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidParameterInput"
 	}
 	return *e.ErrorCodeOverride
@@ -80,7 +80,7 @@ func (e *DashboardNotFoundError) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DashboardNotFoundError) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFound"
 	}
 	return *e.ErrorCodeOverride
@@ -106,7 +106,7 @@ func (e *InternalServiceFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalServiceFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalServiceError"
 	}
 	return *e.ErrorCodeOverride
@@ -132,7 +132,7 @@ func (e *InvalidFormatFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidFormatFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidFormat"
 	}
 	return *e.ErrorCodeOverride
@@ -158,7 +158,7 @@ func (e *InvalidNextToken) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidNextToken) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidNextToken"
 	}
 	return *e.ErrorCodeOverride
@@ -184,7 +184,7 @@ func (e *InvalidParameterCombinationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidParameterCombinationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidParameterCombination"
 	}
 	return *e.ErrorCodeOverride
@@ -212,7 +212,7 @@ func (e *InvalidParameterValueException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidParameterValueException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidParameterValue"
 	}
 	return *e.ErrorCodeOverride
@@ -238,7 +238,7 @@ func (e *LimitExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *LimitExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "LimitExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -264,7 +264,7 @@ func (e *LimitExceededFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *LimitExceededFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "LimitExceeded"
 	}
 	return *e.ErrorCodeOverride
@@ -290,7 +290,7 @@ func (e *MissingRequiredParameterException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *MissingRequiredParameterException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "MissingParameter"
 	}
 	return *e.ErrorCodeOverride
@@ -316,7 +316,7 @@ func (e *ResourceNotFound) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFound) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFound"
 	}
 	return *e.ErrorCodeOverride
@@ -345,7 +345,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/cloudwatchevents/types/errors.go b/service/cloudwatchevents/types/errors.go
index 427c4c046b4..fb8b0a0a165 100644
--- a/service/cloudwatchevents/types/errors.go
+++ b/service/cloudwatchevents/types/errors.go
@@ -26,7 +26,7 @@ func (e *ConcurrentModificationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ConcurrentModificationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ConcurrentModificationException"
 	}
 	return *e.ErrorCodeOverride
@@ -53,7 +53,7 @@ func (e *IllegalStatusException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *IllegalStatusException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "IllegalStatusException"
 	}
 	return *e.ErrorCodeOverride
@@ -79,7 +79,7 @@ func (e *InternalException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalException"
 	}
 	return *e.ErrorCodeOverride
@@ -105,7 +105,7 @@ func (e *InvalidEventPatternException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidEventPatternException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidEventPatternException"
 	}
 	return *e.ErrorCodeOverride
@@ -131,7 +131,7 @@ func (e *InvalidStateException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidStateException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidStateException"
 	}
 	return *e.ErrorCodeOverride
@@ -158,7 +158,7 @@ func (e *LimitExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *LimitExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "LimitExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -189,7 +189,7 @@ func (e *ManagedRuleException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ManagedRuleException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ManagedRuleException"
 	}
 	return *e.ErrorCodeOverride
@@ -215,7 +215,7 @@ func (e *OperationDisabledException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *OperationDisabledException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "OperationDisabledException"
 	}
 	return *e.ErrorCodeOverride
@@ -241,7 +241,7 @@ func (e *PolicyLengthExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *PolicyLengthExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "PolicyLengthExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -267,7 +267,7 @@ func (e *ResourceAlreadyExistsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceAlreadyExistsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceAlreadyExistsException"
 	}
 	return *e.ErrorCodeOverride
@@ -293,7 +293,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/cloudwatchlogs/types/errors.go b/service/cloudwatchlogs/types/errors.go
index 82355926bfa..b7e3437d7f1 100644
--- a/service/cloudwatchlogs/types/errors.go
+++ b/service/cloudwatchlogs/types/errors.go
@@ -30,7 +30,7 @@ func (e *DataAlreadyAcceptedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DataAlreadyAcceptedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DataAlreadyAcceptedException"
 	}
 	return *e.ErrorCodeOverride
@@ -56,7 +56,7 @@ func (e *InvalidOperationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidOperationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidOperationException"
 	}
 	return *e.ErrorCodeOverride
@@ -82,7 +82,7 @@ func (e *InvalidParameterException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidParameterException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidParameterException"
 	}
 	return *e.ErrorCodeOverride
@@ -113,7 +113,7 @@ func (e *InvalidSequenceTokenException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidSequenceTokenException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidSequenceTokenException"
 	}
 	return *e.ErrorCodeOverride
@@ -139,7 +139,7 @@ func (e *LimitExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *LimitExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "LimitExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -172,7 +172,7 @@ func (e *MalformedQueryException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *MalformedQueryException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "MalformedQueryException"
 	}
 	return *e.ErrorCodeOverride
@@ -198,7 +198,7 @@ func (e *OperationAbortedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *OperationAbortedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "OperationAbortedException"
 	}
 	return *e.ErrorCodeOverride
@@ -224,7 +224,7 @@ func (e *ResourceAlreadyExistsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceAlreadyExistsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceAlreadyExistsException"
 	}
 	return *e.ErrorCodeOverride
@@ -250,7 +250,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -276,7 +276,7 @@ func (e *ServiceUnavailableException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ServiceUnavailableException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ServiceUnavailableException"
 	}
 	return *e.ErrorCodeOverride
@@ -304,7 +304,7 @@ func (e *TooManyTagsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TooManyTagsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TooManyTagsException"
 	}
 	return *e.ErrorCodeOverride
@@ -331,7 +331,7 @@ func (e *UnrecognizedClientException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *UnrecognizedClientException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "UnrecognizedClientException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/codeartifact/types/errors.go b/service/codeartifact/types/errors.go
index c8a62642501..09f16415ffb 100644
--- a/service/codeartifact/types/errors.go
+++ b/service/codeartifact/types/errors.go
@@ -26,7 +26,7 @@ func (e *AccessDeniedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AccessDeniedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AccessDeniedException"
 	}
 	return *e.ErrorCodeOverride
@@ -55,7 +55,7 @@ func (e *ConflictException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ConflictException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ConflictException"
 	}
 	return *e.ErrorCodeOverride
@@ -82,7 +82,7 @@ func (e *InternalServerException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalServerException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalServerException"
 	}
 	return *e.ErrorCodeOverride
@@ -112,7 +112,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -142,7 +142,7 @@ func (e *ServiceQuotaExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ServiceQuotaExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ServiceQuotaExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -170,7 +170,7 @@ func (e *ThrottlingException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ThrottlingException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ThrottlingException"
 	}
 	return *e.ErrorCodeOverride
@@ -199,7 +199,7 @@ func (e *ValidationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ValidationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ValidationException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/codebuild/types/errors.go b/service/codebuild/types/errors.go
index a29e45d95ab..c13454af741 100644
--- a/service/codebuild/types/errors.go
+++ b/service/codebuild/types/errors.go
@@ -27,7 +27,7 @@ func (e *AccountLimitExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AccountLimitExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AccountLimitExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -53,7 +53,7 @@ func (e *InvalidInputException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidInputException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidInputException"
 	}
 	return *e.ErrorCodeOverride
@@ -79,7 +79,7 @@ func (e *OAuthProviderException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *OAuthProviderException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "OAuthProviderException"
 	}
 	return *e.ErrorCodeOverride
@@ -106,7 +106,7 @@ func (e *ResourceAlreadyExistsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceAlreadyExistsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceAlreadyExistsException"
 	}
 	return *e.ErrorCodeOverride
@@ -132,7 +132,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/codecatalyst/types/errors.go b/service/codecatalyst/types/errors.go
index 87db5f48e5a..83d630d1b73 100644
--- a/service/codecatalyst/types/errors.go
+++ b/service/codecatalyst/types/errors.go
@@ -27,7 +27,7 @@ func (e *AccessDeniedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AccessDeniedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AccessDeniedException"
 	}
 	return *e.ErrorCodeOverride
@@ -56,7 +56,7 @@ func (e *ConflictException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ConflictException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ConflictException"
 	}
 	return *e.ErrorCodeOverride
@@ -83,7 +83,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -111,7 +111,7 @@ func (e *ServiceQuotaExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ServiceQuotaExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ServiceQuotaExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -137,7 +137,7 @@ func (e *ThrottlingException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ThrottlingException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ThrottlingException"
 	}
 	return *e.ErrorCodeOverride
@@ -165,7 +165,7 @@ func (e *ValidationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ValidationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ValidationException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/codecommit/types/errors.go b/service/codecommit/types/errors.go
index 2c76fcb2a23..ed7ffbf95a6 100644
--- a/service/codecommit/types/errors.go
+++ b/service/codecommit/types/errors.go
@@ -26,7 +26,7 @@ func (e *ActorDoesNotExistException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ActorDoesNotExistException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ActorDoesNotExistException"
 	}
 	return *e.ErrorCodeOverride
@@ -53,7 +53,7 @@ func (e *ApprovalRuleContentRequiredException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ApprovalRuleContentRequiredException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ApprovalRuleContentRequiredException"
 	}
 	return *e.ErrorCodeOverride
@@ -81,7 +81,7 @@ func (e *ApprovalRuleDoesNotExistException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ApprovalRuleDoesNotExistException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ApprovalRuleDoesNotExistException"
 	}
 	return *e.ErrorCodeOverride
@@ -108,7 +108,7 @@ func (e *ApprovalRuleNameAlreadyExistsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ApprovalRuleNameAlreadyExistsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ApprovalRuleNameAlreadyExistsException"
 	}
 	return *e.ErrorCodeOverride
@@ -136,7 +136,7 @@ func (e *ApprovalRuleNameRequiredException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ApprovalRuleNameRequiredException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ApprovalRuleNameRequiredException"
 	}
 	return *e.ErrorCodeOverride
@@ -163,7 +163,7 @@ func (e *ApprovalRuleTemplateContentRequiredException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ApprovalRuleTemplateContentRequiredException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ApprovalRuleTemplateContentRequiredException"
 	}
 	return *e.ErrorCodeOverride
@@ -193,7 +193,7 @@ func (e *ApprovalRuleTemplateDoesNotExistException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ApprovalRuleTemplateDoesNotExistException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ApprovalRuleTemplateDoesNotExistException"
 	}
 	return *e.ErrorCodeOverride
@@ -223,7 +223,7 @@ func (e *ApprovalRuleTemplateInUseException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ApprovalRuleTemplateInUseException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ApprovalRuleTemplateInUseException"
 	}
 	return *e.ErrorCodeOverride
@@ -253,7 +253,7 @@ func (e *ApprovalRuleTemplateNameAlreadyExistsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ApprovalRuleTemplateNameAlreadyExistsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ApprovalRuleTemplateNameAlreadyExistsException"
 	}
 	return *e.ErrorCodeOverride
@@ -281,7 +281,7 @@ func (e *ApprovalRuleTemplateNameRequiredException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ApprovalRuleTemplateNameRequiredException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ApprovalRuleTemplateNameRequiredException"
 	}
 	return *e.ErrorCodeOverride
@@ -309,7 +309,7 @@ func (e *ApprovalStateRequiredException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ApprovalStateRequiredException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ApprovalStateRequiredException"
 	}
 	return *e.ErrorCodeOverride
@@ -335,7 +335,7 @@ func (e *AuthorDoesNotExistException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AuthorDoesNotExistException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AuthorDoesNotExistException"
 	}
 	return *e.ErrorCodeOverride
@@ -362,7 +362,7 @@ func (e *BeforeCommitIdAndAfterCommitIdAreSameException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *BeforeCommitIdAndAfterCommitIdAreSameException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "BeforeCommitIdAndAfterCommitIdAreSameException"
 	}
 	return *e.ErrorCodeOverride
@@ -390,7 +390,7 @@ func (e *BlobIdDoesNotExistException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *BlobIdDoesNotExistException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "BlobIdDoesNotExistException"
 	}
 	return *e.ErrorCodeOverride
@@ -416,7 +416,7 @@ func (e *BlobIdRequiredException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *BlobIdRequiredException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "BlobIdRequiredException"
 	}
 	return *e.ErrorCodeOverride
@@ -442,7 +442,7 @@ func (e *BranchDoesNotExistException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *BranchDoesNotExistException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "BranchDoesNotExistException"
 	}
 	return *e.ErrorCodeOverride
@@ -469,7 +469,7 @@ func (e *BranchNameExistsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *BranchNameExistsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "BranchNameExistsException"
 	}
 	return *e.ErrorCodeOverride
@@ -497,7 +497,7 @@ func (e *BranchNameIsTagNameException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *BranchNameIsTagNameException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "BranchNameIsTagNameException"
 	}
 	return *e.ErrorCodeOverride
@@ -523,7 +523,7 @@ func (e *BranchNameRequiredException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *BranchNameRequiredException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "BranchNameRequiredException"
 	}
 	return *e.ErrorCodeOverride
@@ -550,7 +550,7 @@ func (e *CannotDeleteApprovalRuleFromTemplateException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *CannotDeleteApprovalRuleFromTemplateException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "CannotDeleteApprovalRuleFromTemplateException"
 	}
 	return *e.ErrorCodeOverride
@@ -579,7 +579,7 @@ func (e *CannotModifyApprovalRuleFromTemplateException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *CannotModifyApprovalRuleFromTemplateException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "CannotModifyApprovalRuleFromTemplateException"
 	}
 	return *e.ErrorCodeOverride
@@ -611,7 +611,7 @@ func (e *ClientRequestTokenRequiredException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ClientRequestTokenRequiredException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ClientRequestTokenRequiredException"
 	}
 	return *e.ErrorCodeOverride
@@ -640,7 +640,7 @@ func (e *CommentContentRequiredException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *CommentContentRequiredException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "CommentContentRequiredException"
 	}
 	return *e.ErrorCodeOverride
@@ -666,7 +666,7 @@ func (e *CommentContentSizeLimitExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *CommentContentSizeLimitExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "CommentContentSizeLimitExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -695,7 +695,7 @@ func (e *CommentDeletedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *CommentDeletedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "CommentDeletedException"
 	}
 	return *e.ErrorCodeOverride
@@ -722,7 +722,7 @@ func (e *CommentDoesNotExistException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *CommentDoesNotExistException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "CommentDoesNotExistException"
 	}
 	return *e.ErrorCodeOverride
@@ -748,7 +748,7 @@ func (e *CommentIdRequiredException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *CommentIdRequiredException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "CommentIdRequiredException"
 	}
 	return *e.ErrorCodeOverride
@@ -775,7 +775,7 @@ func (e *CommentNotCreatedByCallerException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *CommentNotCreatedByCallerException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "CommentNotCreatedByCallerException"
 	}
 	return *e.ErrorCodeOverride
@@ -804,7 +804,7 @@ func (e *CommitDoesNotExistException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *CommitDoesNotExistException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "CommitDoesNotExistException"
 	}
 	return *e.ErrorCodeOverride
@@ -830,7 +830,7 @@ func (e *CommitIdDoesNotExistException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *CommitIdDoesNotExistException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "CommitIdDoesNotExistException"
 	}
 	return *e.ErrorCodeOverride
@@ -856,7 +856,7 @@ func (e *CommitIdRequiredException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *CommitIdRequiredException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "CommitIdRequiredException"
 	}
 	return *e.ErrorCodeOverride
@@ -883,7 +883,7 @@ func (e *CommitIdsLimitExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *CommitIdsLimitExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "CommitIdsLimitExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -910,7 +910,7 @@ func (e *CommitIdsListRequiredException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *CommitIdsListRequiredException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "CommitIdsListRequiredException"
 	}
 	return *e.ErrorCodeOverride
@@ -936,7 +936,7 @@ func (e *CommitMessageLengthExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *CommitMessageLengthExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "CommitMessageLengthExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -964,7 +964,7 @@ func (e *CommitRequiredException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *CommitRequiredException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "CommitRequiredException"
 	}
 	return *e.ErrorCodeOverride
@@ -992,7 +992,7 @@ func (e *ConcurrentReferenceUpdateException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ConcurrentReferenceUpdateException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ConcurrentReferenceUpdateException"
 	}
 	return *e.ErrorCodeOverride
@@ -1022,7 +1022,7 @@ func (e *DefaultBranchCannotBeDeletedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DefaultBranchCannotBeDeletedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DefaultBranchCannotBeDeletedException"
 	}
 	return *e.ErrorCodeOverride
@@ -1052,7 +1052,7 @@ func (e *DirectoryNameConflictsWithFileNameException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DirectoryNameConflictsWithFileNameException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DirectoryNameConflictsWithFileNameException"
 	}
 	return *e.ErrorCodeOverride
@@ -1080,7 +1080,7 @@ func (e *EncryptionIntegrityChecksFailedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *EncryptionIntegrityChecksFailedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "EncryptionIntegrityChecksFailedException"
 	}
 	return *e.ErrorCodeOverride
@@ -1108,7 +1108,7 @@ func (e *EncryptionKeyAccessDeniedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *EncryptionKeyAccessDeniedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "EncryptionKeyAccessDeniedException"
 	}
 	return *e.ErrorCodeOverride
@@ -1136,7 +1136,7 @@ func (e *EncryptionKeyDisabledException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *EncryptionKeyDisabledException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "EncryptionKeyDisabledException"
 	}
 	return *e.ErrorCodeOverride
@@ -1162,7 +1162,7 @@ func (e *EncryptionKeyNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *EncryptionKeyNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "EncryptionKeyNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -1188,7 +1188,7 @@ func (e *EncryptionKeyUnavailableException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *EncryptionKeyUnavailableException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "EncryptionKeyUnavailableException"
 	}
 	return *e.ErrorCodeOverride
@@ -1216,7 +1216,7 @@ func (e *FileContentAndSourceFileSpecifiedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *FileContentAndSourceFileSpecifiedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "FileContentAndSourceFileSpecifiedException"
 	}
 	return *e.ErrorCodeOverride
@@ -1245,7 +1245,7 @@ func (e *FileContentRequiredException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *FileContentRequiredException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "FileContentRequiredException"
 	}
 	return *e.ErrorCodeOverride
@@ -1273,7 +1273,7 @@ func (e *FileContentSizeLimitExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *FileContentSizeLimitExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "FileContentSizeLimitExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -1302,7 +1302,7 @@ func (e *FileDoesNotExistException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *FileDoesNotExistException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "FileDoesNotExistException"
 	}
 	return *e.ErrorCodeOverride
@@ -1329,7 +1329,7 @@ func (e *FileEntryRequiredException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *FileEntryRequiredException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "FileEntryRequiredException"
 	}
 	return *e.ErrorCodeOverride
@@ -1356,7 +1356,7 @@ func (e *FileModeRequiredException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *FileModeRequiredException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "FileModeRequiredException"
 	}
 	return *e.ErrorCodeOverride
@@ -1384,7 +1384,7 @@ func (e *FileNameConflictsWithDirectoryNameException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *FileNameConflictsWithDirectoryNameException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "FileNameConflictsWithDirectoryNameException"
 	}
 	return *e.ErrorCodeOverride
@@ -1414,7 +1414,7 @@ func (e *FilePathConflictsWithSubmodulePathException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *FilePathConflictsWithSubmodulePathException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "FilePathConflictsWithSubmodulePathException"
 	}
 	return *e.ErrorCodeOverride
@@ -1444,7 +1444,7 @@ func (e *FileTooLargeException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *FileTooLargeException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "FileTooLargeException"
 	}
 	return *e.ErrorCodeOverride
@@ -1473,7 +1473,7 @@ func (e *FolderContentSizeLimitExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *FolderContentSizeLimitExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "FolderContentSizeLimitExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -1502,7 +1502,7 @@ func (e *FolderDoesNotExistException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *FolderDoesNotExistException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "FolderDoesNotExistException"
 	}
 	return *e.ErrorCodeOverride
@@ -1529,7 +1529,7 @@ func (e *IdempotencyParameterMismatchException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *IdempotencyParameterMismatchException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "IdempotencyParameterMismatchException"
 	}
 	return *e.ErrorCodeOverride
@@ -1559,7 +1559,7 @@ func (e *InvalidActorArnException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidActorArnException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidActorArnException"
 	}
 	return *e.ErrorCodeOverride
@@ -1585,7 +1585,7 @@ func (e *InvalidApprovalRuleContentException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidApprovalRuleContentException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidApprovalRuleContentException"
 	}
 	return *e.ErrorCodeOverride
@@ -1613,7 +1613,7 @@ func (e *InvalidApprovalRuleNameException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidApprovalRuleNameException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidApprovalRuleNameException"
 	}
 	return *e.ErrorCodeOverride
@@ -1639,7 +1639,7 @@ func (e *InvalidApprovalRuleTemplateContentException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidApprovalRuleTemplateContentException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidApprovalRuleTemplateContentException"
 	}
 	return *e.ErrorCodeOverride
@@ -1670,7 +1670,7 @@ func (e *InvalidApprovalRuleTemplateDescriptionException) ErrorMessage() string
 	return *e.Message
 }
 func (e *InvalidApprovalRuleTemplateDescriptionException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidApprovalRuleTemplateDescriptionException"
 	}
 	return *e.ErrorCodeOverride
@@ -1701,7 +1701,7 @@ func (e *InvalidApprovalRuleTemplateNameException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidApprovalRuleTemplateNameException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidApprovalRuleTemplateNameException"
 	}
 	return *e.ErrorCodeOverride
@@ -1730,7 +1730,7 @@ func (e *InvalidApprovalStateException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidApprovalStateException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidApprovalStateException"
 	}
 	return *e.ErrorCodeOverride
@@ -1757,7 +1757,7 @@ func (e *InvalidAuthorArnException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidAuthorArnException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidAuthorArnException"
 	}
 	return *e.ErrorCodeOverride
@@ -1783,7 +1783,7 @@ func (e *InvalidBlobIdException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidBlobIdException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidBlobIdException"
 	}
 	return *e.ErrorCodeOverride
@@ -1809,7 +1809,7 @@ func (e *InvalidBranchNameException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidBranchNameException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidBranchNameException"
 	}
 	return *e.ErrorCodeOverride
@@ -1835,7 +1835,7 @@ func (e *InvalidClientRequestTokenException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidClientRequestTokenException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidClientRequestTokenException"
 	}
 	return *e.ErrorCodeOverride
@@ -1864,7 +1864,7 @@ func (e *InvalidCommentIdException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidCommentIdException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidCommentIdException"
 	}
 	return *e.ErrorCodeOverride
@@ -1890,7 +1890,7 @@ func (e *InvalidCommitException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidCommitException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidCommitException"
 	}
 	return *e.ErrorCodeOverride
@@ -1916,7 +1916,7 @@ func (e *InvalidCommitIdException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidCommitIdException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidCommitIdException"
 	}
 	return *e.ErrorCodeOverride
@@ -1942,7 +1942,7 @@ func (e *InvalidConflictDetailLevelException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidConflictDetailLevelException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidConflictDetailLevelException"
 	}
 	return *e.ErrorCodeOverride
@@ -1970,7 +1970,7 @@ func (e *InvalidConflictResolutionException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidConflictResolutionException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidConflictResolutionException"
 	}
 	return *e.ErrorCodeOverride
@@ -1998,7 +1998,7 @@ func (e *InvalidConflictResolutionStrategyException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidConflictResolutionStrategyException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidConflictResolutionStrategyException"
 	}
 	return *e.ErrorCodeOverride
@@ -2026,7 +2026,7 @@ func (e *InvalidContinuationTokenException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidContinuationTokenException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidContinuationTokenException"
 	}
 	return *e.ErrorCodeOverride
@@ -2052,7 +2052,7 @@ func (e *InvalidDeletionParameterException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidDeletionParameterException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidDeletionParameterException"
 	}
 	return *e.ErrorCodeOverride
@@ -2079,7 +2079,7 @@ func (e *InvalidDescriptionException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidDescriptionException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidDescriptionException"
 	}
 	return *e.ErrorCodeOverride
@@ -2106,7 +2106,7 @@ func (e *InvalidDestinationCommitSpecifierException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidDestinationCommitSpecifierException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidDestinationCommitSpecifierException"
 	}
 	return *e.ErrorCodeOverride
@@ -2136,7 +2136,7 @@ func (e *InvalidEmailException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidEmailException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidEmailException"
 	}
 	return *e.ErrorCodeOverride
@@ -2163,7 +2163,7 @@ func (e *InvalidFileLocationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidFileLocationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidFileLocationException"
 	}
 	return *e.ErrorCodeOverride
@@ -2190,7 +2190,7 @@ func (e *InvalidFileModeException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidFileModeException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidFileModeException"
 	}
 	return *e.ErrorCodeOverride
@@ -2217,7 +2217,7 @@ func (e *InvalidFilePositionException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidFilePositionException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidFilePositionException"
 	}
 	return *e.ErrorCodeOverride
@@ -2243,7 +2243,7 @@ func (e *InvalidMaxConflictFilesException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidMaxConflictFilesException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidMaxConflictFilesException"
 	}
 	return *e.ErrorCodeOverride
@@ -2269,7 +2269,7 @@ func (e *InvalidMaxMergeHunksException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidMaxMergeHunksException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidMaxMergeHunksException"
 	}
 	return *e.ErrorCodeOverride
@@ -2295,7 +2295,7 @@ func (e *InvalidMaxResultsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidMaxResultsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidMaxResultsException"
 	}
 	return *e.ErrorCodeOverride
@@ -2322,7 +2322,7 @@ func (e *InvalidMergeOptionException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidMergeOptionException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidMergeOptionException"
 	}
 	return *e.ErrorCodeOverride
@@ -2348,7 +2348,7 @@ func (e *InvalidOrderException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidOrderException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidOrderException"
 	}
 	return *e.ErrorCodeOverride
@@ -2374,7 +2374,7 @@ func (e *InvalidOverrideStatusException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidOverrideStatusException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidOverrideStatusException"
 	}
 	return *e.ErrorCodeOverride
@@ -2402,7 +2402,7 @@ func (e *InvalidParentCommitIdException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidParentCommitIdException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidParentCommitIdException"
 	}
 	return *e.ErrorCodeOverride
@@ -2428,7 +2428,7 @@ func (e *InvalidPathException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidPathException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidPathException"
 	}
 	return *e.ErrorCodeOverride
@@ -2454,7 +2454,7 @@ func (e *InvalidPullRequestEventTypeException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidPullRequestEventTypeException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidPullRequestEventTypeException"
 	}
 	return *e.ErrorCodeOverride
@@ -2483,7 +2483,7 @@ func (e *InvalidPullRequestIdException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidPullRequestIdException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidPullRequestIdException"
 	}
 	return *e.ErrorCodeOverride
@@ -2509,7 +2509,7 @@ func (e *InvalidPullRequestStatusException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidPullRequestStatusException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidPullRequestStatusException"
 	}
 	return *e.ErrorCodeOverride
@@ -2536,7 +2536,7 @@ func (e *InvalidPullRequestStatusUpdateException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidPullRequestStatusUpdateException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidPullRequestStatusUpdateException"
 	}
 	return *e.ErrorCodeOverride
@@ -2564,7 +2564,7 @@ func (e *InvalidReactionUserArnException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidReactionUserArnException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidReactionUserArnException"
 	}
 	return *e.ErrorCodeOverride
@@ -2592,7 +2592,7 @@ func (e *InvalidReactionValueException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidReactionValueException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidReactionValueException"
 	}
 	return *e.ErrorCodeOverride
@@ -2622,7 +2622,7 @@ func (e *InvalidReferenceNameException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidReferenceNameException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidReferenceNameException"
 	}
 	return *e.ErrorCodeOverride
@@ -2649,7 +2649,7 @@ func (e *InvalidRelativeFileVersionEnumException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidRelativeFileVersionEnumException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidRelativeFileVersionEnumException"
 	}
 	return *e.ErrorCodeOverride
@@ -2678,7 +2678,7 @@ func (e *InvalidReplacementContentException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidReplacementContentException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidReplacementContentException"
 	}
 	return *e.ErrorCodeOverride
@@ -2707,7 +2707,7 @@ func (e *InvalidReplacementTypeException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidReplacementTypeException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidReplacementTypeException"
 	}
 	return *e.ErrorCodeOverride
@@ -2733,7 +2733,7 @@ func (e *InvalidRepositoryDescriptionException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidRepositoryDescriptionException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidRepositoryDescriptionException"
 	}
 	return *e.ErrorCodeOverride
@@ -2763,7 +2763,7 @@ func (e *InvalidRepositoryNameException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidRepositoryNameException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidRepositoryNameException"
 	}
 	return *e.ErrorCodeOverride
@@ -2789,7 +2789,7 @@ func (e *InvalidRepositoryTriggerBranchNameException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidRepositoryTriggerBranchNameException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidRepositoryTriggerBranchNameException"
 	}
 	return *e.ErrorCodeOverride
@@ -2817,7 +2817,7 @@ func (e *InvalidRepositoryTriggerCustomDataException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidRepositoryTriggerCustomDataException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidRepositoryTriggerCustomDataException"
 	}
 	return *e.ErrorCodeOverride
@@ -2847,7 +2847,7 @@ func (e *InvalidRepositoryTriggerDestinationArnException) ErrorMessage() string
 	return *e.Message
 }
 func (e *InvalidRepositoryTriggerDestinationArnException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidRepositoryTriggerDestinationArnException"
 	}
 	return *e.ErrorCodeOverride
@@ -2876,7 +2876,7 @@ func (e *InvalidRepositoryTriggerEventsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidRepositoryTriggerEventsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidRepositoryTriggerEventsException"
 	}
 	return *e.ErrorCodeOverride
@@ -2904,7 +2904,7 @@ func (e *InvalidRepositoryTriggerNameException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidRepositoryTriggerNameException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidRepositoryTriggerNameException"
 	}
 	return *e.ErrorCodeOverride
@@ -2934,7 +2934,7 @@ func (e *InvalidRepositoryTriggerRegionException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidRepositoryTriggerRegionException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidRepositoryTriggerRegionException"
 	}
 	return *e.ErrorCodeOverride
@@ -2965,7 +2965,7 @@ func (e *InvalidResourceArnException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidResourceArnException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidResourceArnException"
 	}
 	return *e.ErrorCodeOverride
@@ -2991,7 +2991,7 @@ func (e *InvalidRevisionIdException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidRevisionIdException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidRevisionIdException"
 	}
 	return *e.ErrorCodeOverride
@@ -3017,7 +3017,7 @@ func (e *InvalidRuleContentSha256Exception) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidRuleContentSha256Exception) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidRuleContentSha256Exception"
 	}
 	return *e.ErrorCodeOverride
@@ -3043,7 +3043,7 @@ func (e *InvalidSortByException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidSortByException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidSortByException"
 	}
 	return *e.ErrorCodeOverride
@@ -3070,7 +3070,7 @@ func (e *InvalidSourceCommitSpecifierException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidSourceCommitSpecifierException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidSourceCommitSpecifierException"
 	}
 	return *e.ErrorCodeOverride
@@ -3098,7 +3098,7 @@ func (e *InvalidSystemTagUsageException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidSystemTagUsageException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidSystemTagUsageException"
 	}
 	return *e.ErrorCodeOverride
@@ -3124,7 +3124,7 @@ func (e *InvalidTagKeysListException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidTagKeysListException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidTagKeysListException"
 	}
 	return *e.ErrorCodeOverride
@@ -3150,7 +3150,7 @@ func (e *InvalidTagsMapException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidTagsMapException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidTagsMapException"
 	}
 	return *e.ErrorCodeOverride
@@ -3176,7 +3176,7 @@ func (e *InvalidTargetBranchException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidTargetBranchException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidTargetBranchException"
 	}
 	return *e.ErrorCodeOverride
@@ -3204,7 +3204,7 @@ func (e *InvalidTargetException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidTargetException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidTargetException"
 	}
 	return *e.ErrorCodeOverride
@@ -3233,7 +3233,7 @@ func (e *InvalidTargetsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidTargetsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidTargetsException"
 	}
 	return *e.ErrorCodeOverride
@@ -3260,7 +3260,7 @@ func (e *InvalidTitleException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidTitleException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidTitleException"
 	}
 	return *e.ErrorCodeOverride
@@ -3287,7 +3287,7 @@ func (e *ManualMergeRequiredException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ManualMergeRequiredException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ManualMergeRequiredException"
 	}
 	return *e.ErrorCodeOverride
@@ -3313,7 +3313,7 @@ func (e *MaximumBranchesExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *MaximumBranchesExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "MaximumBranchesExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -3339,7 +3339,7 @@ func (e *MaximumConflictResolutionEntriesExceededException) ErrorMessage() strin
 	return *e.Message
 }
 func (e *MaximumConflictResolutionEntriesExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "MaximumConflictResolutionEntriesExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -3367,7 +3367,7 @@ func (e *MaximumFileContentToLoadExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *MaximumFileContentToLoadExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "MaximumFileContentToLoadExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -3397,7 +3397,7 @@ func (e *MaximumFileEntriesExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *MaximumFileEntriesExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "MaximumFileEntriesExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -3426,7 +3426,7 @@ func (e *MaximumItemsToCompareExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *MaximumItemsToCompareExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "MaximumItemsToCompareExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -3455,7 +3455,7 @@ func (e *MaximumNumberOfApprovalsExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *MaximumNumberOfApprovalsExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "MaximumNumberOfApprovalsExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -3485,7 +3485,7 @@ func (e *MaximumOpenPullRequestsExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *MaximumOpenPullRequestsExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "MaximumOpenPullRequestsExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -3514,7 +3514,7 @@ func (e *MaximumRepositoryNamesExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *MaximumRepositoryNamesExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "MaximumRepositoryNamesExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -3542,7 +3542,7 @@ func (e *MaximumRepositoryTriggersExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *MaximumRepositoryTriggersExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "MaximumRepositoryTriggersExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -3572,7 +3572,7 @@ func (e *MaximumRuleTemplatesAssociatedWithRepositoryException) ErrorMessage() s
 	return *e.Message
 }
 func (e *MaximumRuleTemplatesAssociatedWithRepositoryException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "MaximumRuleTemplatesAssociatedWithRepositoryException"
 	}
 	return *e.ErrorCodeOverride
@@ -3600,7 +3600,7 @@ func (e *MergeOptionRequiredException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *MergeOptionRequiredException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "MergeOptionRequiredException"
 	}
 	return *e.ErrorCodeOverride
@@ -3627,7 +3627,7 @@ func (e *MultipleConflictResolutionEntriesException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *MultipleConflictResolutionEntriesException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "MultipleConflictResolutionEntriesException"
 	}
 	return *e.ErrorCodeOverride
@@ -3656,7 +3656,7 @@ func (e *MultipleRepositoriesInPullRequestException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *MultipleRepositoriesInPullRequestException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "MultipleRepositoriesInPullRequestException"
 	}
 	return *e.ErrorCodeOverride
@@ -3685,7 +3685,7 @@ func (e *NameLengthExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *NameLengthExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "NameLengthExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -3712,7 +3712,7 @@ func (e *NoChangeException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *NoChangeException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "NoChangeException"
 	}
 	return *e.ErrorCodeOverride
@@ -3739,7 +3739,7 @@ func (e *NumberOfRulesExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *NumberOfRulesExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "NumberOfRulesExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -3766,7 +3766,7 @@ func (e *NumberOfRuleTemplatesExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *NumberOfRuleTemplatesExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "NumberOfRuleTemplatesExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -3794,7 +3794,7 @@ func (e *OverrideAlreadySetException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *OverrideAlreadySetException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "OverrideAlreadySetException"
 	}
 	return *e.ErrorCodeOverride
@@ -3821,7 +3821,7 @@ func (e *OverrideStatusRequiredException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *OverrideStatusRequiredException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "OverrideStatusRequiredException"
 	}
 	return *e.ErrorCodeOverride
@@ -3848,7 +3848,7 @@ func (e *ParentCommitDoesNotExistException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ParentCommitDoesNotExistException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ParentCommitDoesNotExistException"
 	}
 	return *e.ErrorCodeOverride
@@ -3876,7 +3876,7 @@ func (e *ParentCommitIdOutdatedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ParentCommitIdOutdatedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ParentCommitIdOutdatedException"
 	}
 	return *e.ErrorCodeOverride
@@ -3903,7 +3903,7 @@ func (e *ParentCommitIdRequiredException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ParentCommitIdRequiredException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ParentCommitIdRequiredException"
 	}
 	return *e.ErrorCodeOverride
@@ -3929,7 +3929,7 @@ func (e *PathDoesNotExistException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *PathDoesNotExistException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "PathDoesNotExistException"
 	}
 	return *e.ErrorCodeOverride
@@ -3955,7 +3955,7 @@ func (e *PathRequiredException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *PathRequiredException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "PathRequiredException"
 	}
 	return *e.ErrorCodeOverride
@@ -3981,7 +3981,7 @@ func (e *PullRequestAlreadyClosedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *PullRequestAlreadyClosedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "PullRequestAlreadyClosedException"
 	}
 	return *e.ErrorCodeOverride
@@ -4008,7 +4008,7 @@ func (e *PullRequestApprovalRulesNotSatisfiedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *PullRequestApprovalRulesNotSatisfiedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "PullRequestApprovalRulesNotSatisfiedException"
 	}
 	return *e.ErrorCodeOverride
@@ -4038,7 +4038,7 @@ func (e *PullRequestCannotBeApprovedByAuthorException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *PullRequestCannotBeApprovedByAuthorException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "PullRequestCannotBeApprovedByAuthorException"
 	}
 	return *e.ErrorCodeOverride
@@ -4067,7 +4067,7 @@ func (e *PullRequestDoesNotExistException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *PullRequestDoesNotExistException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "PullRequestDoesNotExistException"
 	}
 	return *e.ErrorCodeOverride
@@ -4093,7 +4093,7 @@ func (e *PullRequestIdRequiredException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *PullRequestIdRequiredException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "PullRequestIdRequiredException"
 	}
 	return *e.ErrorCodeOverride
@@ -4119,7 +4119,7 @@ func (e *PullRequestStatusRequiredException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *PullRequestStatusRequiredException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "PullRequestStatusRequiredException"
 	}
 	return *e.ErrorCodeOverride
@@ -4148,7 +4148,7 @@ func (e *PutFileEntryConflictException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *PutFileEntryConflictException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "PutFileEntryConflictException"
 	}
 	return *e.ErrorCodeOverride
@@ -4175,7 +4175,7 @@ func (e *ReactionLimitExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ReactionLimitExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ReactionLimitExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -4201,7 +4201,7 @@ func (e *ReactionValueRequiredException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ReactionValueRequiredException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ReactionValueRequiredException"
 	}
 	return *e.ErrorCodeOverride
@@ -4227,7 +4227,7 @@ func (e *ReferenceDoesNotExistException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ReferenceDoesNotExistException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ReferenceDoesNotExistException"
 	}
 	return *e.ErrorCodeOverride
@@ -4253,7 +4253,7 @@ func (e *ReferenceNameRequiredException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ReferenceNameRequiredException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ReferenceNameRequiredException"
 	}
 	return *e.ErrorCodeOverride
@@ -4279,7 +4279,7 @@ func (e *ReferenceTypeNotSupportedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ReferenceTypeNotSupportedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ReferenceTypeNotSupportedException"
 	}
 	return *e.ErrorCodeOverride
@@ -4307,7 +4307,7 @@ func (e *ReplacementContentRequiredException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ReplacementContentRequiredException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ReplacementContentRequiredException"
 	}
 	return *e.ErrorCodeOverride
@@ -4335,7 +4335,7 @@ func (e *ReplacementTypeRequiredException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ReplacementTypeRequiredException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ReplacementTypeRequiredException"
 	}
 	return *e.ErrorCodeOverride
@@ -4361,7 +4361,7 @@ func (e *RepositoryDoesNotExistException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *RepositoryDoesNotExistException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "RepositoryDoesNotExistException"
 	}
 	return *e.ErrorCodeOverride
@@ -4387,7 +4387,7 @@ func (e *RepositoryLimitExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *RepositoryLimitExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "RepositoryLimitExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -4413,7 +4413,7 @@ func (e *RepositoryNameExistsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *RepositoryNameExistsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "RepositoryNameExistsException"
 	}
 	return *e.ErrorCodeOverride
@@ -4439,7 +4439,7 @@ func (e *RepositoryNameRequiredException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *RepositoryNameRequiredException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "RepositoryNameRequiredException"
 	}
 	return *e.ErrorCodeOverride
@@ -4465,7 +4465,7 @@ func (e *RepositoryNamesRequiredException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *RepositoryNamesRequiredException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "RepositoryNamesRequiredException"
 	}
 	return *e.ErrorCodeOverride
@@ -4492,7 +4492,7 @@ func (e *RepositoryNotAssociatedWithPullRequestException) ErrorMessage() string
 	return *e.Message
 }
 func (e *RepositoryNotAssociatedWithPullRequestException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "RepositoryNotAssociatedWithPullRequestException"
 	}
 	return *e.ErrorCodeOverride
@@ -4521,7 +4521,7 @@ func (e *RepositoryTriggerBranchNameListRequiredException) ErrorMessage() string
 	return *e.Message
 }
 func (e *RepositoryTriggerBranchNameListRequiredException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "RepositoryTriggerBranchNameListRequiredException"
 	}
 	return *e.ErrorCodeOverride
@@ -4550,7 +4550,7 @@ func (e *RepositoryTriggerDestinationArnRequiredException) ErrorMessage() string
 	return *e.Message
 }
 func (e *RepositoryTriggerDestinationArnRequiredException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "RepositoryTriggerDestinationArnRequiredException"
 	}
 	return *e.ErrorCodeOverride
@@ -4578,7 +4578,7 @@ func (e *RepositoryTriggerEventsListRequiredException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *RepositoryTriggerEventsListRequiredException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "RepositoryTriggerEventsListRequiredException"
 	}
 	return *e.ErrorCodeOverride
@@ -4606,7 +4606,7 @@ func (e *RepositoryTriggerNameRequiredException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *RepositoryTriggerNameRequiredException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "RepositoryTriggerNameRequiredException"
 	}
 	return *e.ErrorCodeOverride
@@ -4634,7 +4634,7 @@ func (e *RepositoryTriggersListRequiredException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *RepositoryTriggersListRequiredException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "RepositoryTriggersListRequiredException"
 	}
 	return *e.ErrorCodeOverride
@@ -4666,7 +4666,7 @@ func (e *ResourceArnRequiredException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceArnRequiredException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceArnRequiredException"
 	}
 	return *e.ErrorCodeOverride
@@ -4693,7 +4693,7 @@ func (e *RestrictedSourceFileException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *RestrictedSourceFileException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "RestrictedSourceFileException"
 	}
 	return *e.ErrorCodeOverride
@@ -4719,7 +4719,7 @@ func (e *RevisionIdRequiredException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *RevisionIdRequiredException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "RevisionIdRequiredException"
 	}
 	return *e.ErrorCodeOverride
@@ -4746,7 +4746,7 @@ func (e *RevisionNotCurrentException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *RevisionNotCurrentException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "RevisionNotCurrentException"
 	}
 	return *e.ErrorCodeOverride
@@ -4774,7 +4774,7 @@ func (e *SameFileContentException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *SameFileContentException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "SameFileContentException"
 	}
 	return *e.ErrorCodeOverride
@@ -4803,7 +4803,7 @@ func (e *SamePathRequestException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *SamePathRequestException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "SamePathRequestException"
 	}
 	return *e.ErrorCodeOverride
@@ -4830,7 +4830,7 @@ func (e *SourceAndDestinationAreSameException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *SourceAndDestinationAreSameException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "SourceAndDestinationAreSameException"
 	}
 	return *e.ErrorCodeOverride
@@ -4859,7 +4859,7 @@ func (e *SourceFileOrContentRequiredException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *SourceFileOrContentRequiredException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "SourceFileOrContentRequiredException"
 	}
 	return *e.ErrorCodeOverride
@@ -4887,7 +4887,7 @@ func (e *TagKeysListRequiredException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TagKeysListRequiredException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TagKeysListRequiredException"
 	}
 	return *e.ErrorCodeOverride
@@ -4913,7 +4913,7 @@ func (e *TagPolicyException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TagPolicyException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TagPolicyException"
 	}
 	return *e.ErrorCodeOverride
@@ -4939,7 +4939,7 @@ func (e *TagsMapRequiredException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TagsMapRequiredException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TagsMapRequiredException"
 	}
 	return *e.ErrorCodeOverride
@@ -4967,7 +4967,7 @@ func (e *TargetRequiredException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TargetRequiredException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TargetRequiredException"
 	}
 	return *e.ErrorCodeOverride
@@ -4993,7 +4993,7 @@ func (e *TargetsRequiredException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TargetsRequiredException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TargetsRequiredException"
 	}
 	return *e.ErrorCodeOverride
@@ -5021,7 +5021,7 @@ func (e *TipOfSourceReferenceIsDifferentException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TipOfSourceReferenceIsDifferentException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TipOfSourceReferenceIsDifferentException"
 	}
 	return *e.ErrorCodeOverride
@@ -5051,7 +5051,7 @@ func (e *TipsDivergenceExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TipsDivergenceExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TipsDivergenceExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -5077,7 +5077,7 @@ func (e *TitleRequiredException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TitleRequiredException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TitleRequiredException"
 	}
 	return *e.ErrorCodeOverride
@@ -5103,7 +5103,7 @@ func (e *TooManyTagsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TooManyTagsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TooManyTagsException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/codedeploy/types/errors.go b/service/codedeploy/types/errors.go
index e54b3013e66..bdcca1c38e6 100644
--- a/service/codedeploy/types/errors.go
+++ b/service/codedeploy/types/errors.go
@@ -26,7 +26,7 @@ func (e *AlarmsLimitExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AlarmsLimitExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AlarmsLimitExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -53,7 +53,7 @@ func (e *ApplicationAlreadyExistsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ApplicationAlreadyExistsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ApplicationAlreadyExistsException"
 	}
 	return *e.ErrorCodeOverride
@@ -79,7 +79,7 @@ func (e *ApplicationDoesNotExistException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ApplicationDoesNotExistException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ApplicationDoesNotExistException"
 	}
 	return *e.ErrorCodeOverride
@@ -105,7 +105,7 @@ func (e *ApplicationLimitExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ApplicationLimitExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ApplicationLimitExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -131,7 +131,7 @@ func (e *ApplicationNameRequiredException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ApplicationNameRequiredException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ApplicationNameRequiredException"
 	}
 	return *e.ErrorCodeOverride
@@ -158,7 +158,7 @@ func (e *ArnNotSupportedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ArnNotSupportedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ArnNotSupportedException"
 	}
 	return *e.ErrorCodeOverride
@@ -184,7 +184,7 @@ func (e *BatchLimitExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *BatchLimitExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "BatchLimitExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -210,7 +210,7 @@ func (e *BucketNameFilterRequiredException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *BucketNameFilterRequiredException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "BucketNameFilterRequiredException"
 	}
 	return *e.ErrorCodeOverride
@@ -236,7 +236,7 @@ func (e *DeploymentAlreadyCompletedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DeploymentAlreadyCompletedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DeploymentAlreadyCompletedException"
 	}
 	return *e.ErrorCodeOverride
@@ -265,7 +265,7 @@ func (e *DeploymentConfigAlreadyExistsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DeploymentConfigAlreadyExistsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DeploymentConfigAlreadyExistsException"
 	}
 	return *e.ErrorCodeOverride
@@ -294,7 +294,7 @@ func (e *DeploymentConfigDoesNotExistException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DeploymentConfigDoesNotExistException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DeploymentConfigDoesNotExistException"
 	}
 	return *e.ErrorCodeOverride
@@ -322,7 +322,7 @@ func (e *DeploymentConfigInUseException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DeploymentConfigInUseException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DeploymentConfigInUseException"
 	}
 	return *e.ErrorCodeOverride
@@ -348,7 +348,7 @@ func (e *DeploymentConfigLimitExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DeploymentConfigLimitExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DeploymentConfigLimitExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -376,7 +376,7 @@ func (e *DeploymentConfigNameRequiredException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DeploymentConfigNameRequiredException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DeploymentConfigNameRequiredException"
 	}
 	return *e.ErrorCodeOverride
@@ -404,7 +404,7 @@ func (e *DeploymentDoesNotExistException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DeploymentDoesNotExistException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DeploymentDoesNotExistException"
 	}
 	return *e.ErrorCodeOverride
@@ -431,7 +431,7 @@ func (e *DeploymentGroupAlreadyExistsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DeploymentGroupAlreadyExistsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DeploymentGroupAlreadyExistsException"
 	}
 	return *e.ErrorCodeOverride
@@ -460,7 +460,7 @@ func (e *DeploymentGroupDoesNotExistException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DeploymentGroupDoesNotExistException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DeploymentGroupDoesNotExistException"
 	}
 	return *e.ErrorCodeOverride
@@ -488,7 +488,7 @@ func (e *DeploymentGroupLimitExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DeploymentGroupLimitExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DeploymentGroupLimitExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -516,7 +516,7 @@ func (e *DeploymentGroupNameRequiredException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DeploymentGroupNameRequiredException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DeploymentGroupNameRequiredException"
 	}
 	return *e.ErrorCodeOverride
@@ -544,7 +544,7 @@ func (e *DeploymentIdRequiredException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DeploymentIdRequiredException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DeploymentIdRequiredException"
 	}
 	return *e.ErrorCodeOverride
@@ -570,7 +570,7 @@ func (e *DeploymentIsNotInReadyStateException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DeploymentIsNotInReadyStateException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DeploymentIsNotInReadyStateException"
 	}
 	return *e.ErrorCodeOverride
@@ -598,7 +598,7 @@ func (e *DeploymentLimitExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DeploymentLimitExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DeploymentLimitExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -624,7 +624,7 @@ func (e *DeploymentNotStartedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DeploymentNotStartedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DeploymentNotStartedException"
 	}
 	return *e.ErrorCodeOverride
@@ -650,7 +650,7 @@ func (e *DeploymentTargetDoesNotExistException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DeploymentTargetDoesNotExistException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DeploymentTargetDoesNotExistException"
 	}
 	return *e.ErrorCodeOverride
@@ -678,7 +678,7 @@ func (e *DeploymentTargetIdRequiredException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DeploymentTargetIdRequiredException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DeploymentTargetIdRequiredException"
 	}
 	return *e.ErrorCodeOverride
@@ -709,7 +709,7 @@ func (e *DeploymentTargetListSizeExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DeploymentTargetListSizeExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DeploymentTargetListSizeExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -737,7 +737,7 @@ func (e *DescriptionTooLongException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DescriptionTooLongException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DescriptionTooLongException"
 	}
 	return *e.ErrorCodeOverride
@@ -764,7 +764,7 @@ func (e *ECSServiceMappingLimitExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ECSServiceMappingLimitExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ECSServiceMappingLimitExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -792,7 +792,7 @@ func (e *GitHubAccountTokenDoesNotExistException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *GitHubAccountTokenDoesNotExistException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "GitHubAccountTokenDoesNotExistException"
 	}
 	return *e.ErrorCodeOverride
@@ -820,7 +820,7 @@ func (e *GitHubAccountTokenNameRequiredException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *GitHubAccountTokenNameRequiredException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "GitHubAccountTokenNameRequiredException"
 	}
 	return *e.ErrorCodeOverride
@@ -849,7 +849,7 @@ func (e *IamArnRequiredException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *IamArnRequiredException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "IamArnRequiredException"
 	}
 	return *e.ErrorCodeOverride
@@ -876,7 +876,7 @@ func (e *IamSessionArnAlreadyRegisteredException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *IamSessionArnAlreadyRegisteredException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "IamSessionArnAlreadyRegisteredException"
 	}
 	return *e.ErrorCodeOverride
@@ -904,7 +904,7 @@ func (e *IamUserArnAlreadyRegisteredException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *IamUserArnAlreadyRegisteredException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "IamUserArnAlreadyRegisteredException"
 	}
 	return *e.ErrorCodeOverride
@@ -932,7 +932,7 @@ func (e *IamUserArnRequiredException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *IamUserArnRequiredException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "IamUserArnRequiredException"
 	}
 	return *e.ErrorCodeOverride
@@ -958,7 +958,7 @@ func (e *InstanceDoesNotExistException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InstanceDoesNotExistException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InstanceDoesNotExistException"
 	}
 	return *e.ErrorCodeOverride
@@ -984,7 +984,7 @@ func (e *InstanceIdRequiredException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InstanceIdRequiredException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InstanceIdRequiredException"
 	}
 	return *e.ErrorCodeOverride
@@ -1011,7 +1011,7 @@ func (e *InstanceLimitExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InstanceLimitExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InstanceLimitExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -1037,7 +1037,7 @@ func (e *InstanceNameAlreadyRegisteredException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InstanceNameAlreadyRegisteredException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InstanceNameAlreadyRegisteredException"
 	}
 	return *e.ErrorCodeOverride
@@ -1065,7 +1065,7 @@ func (e *InstanceNameRequiredException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InstanceNameRequiredException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InstanceNameRequiredException"
 	}
 	return *e.ErrorCodeOverride
@@ -1091,7 +1091,7 @@ func (e *InstanceNotRegisteredException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InstanceNotRegisteredException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InstanceNotRegisteredException"
 	}
 	return *e.ErrorCodeOverride
@@ -1131,7 +1131,7 @@ func (e *InvalidAlarmConfigException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidAlarmConfigException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidAlarmConfigException"
 	}
 	return *e.ErrorCodeOverride
@@ -1157,7 +1157,7 @@ func (e *InvalidApplicationNameException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidApplicationNameException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidApplicationNameException"
 	}
 	return *e.ErrorCodeOverride
@@ -1183,7 +1183,7 @@ func (e *InvalidArnException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidArnException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidArnException"
 	}
 	return *e.ErrorCodeOverride
@@ -1211,7 +1211,7 @@ func (e *InvalidAutoRollbackConfigException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidAutoRollbackConfigException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidAutoRollbackConfigException"
 	}
 	return *e.ErrorCodeOverride
@@ -1239,7 +1239,7 @@ func (e *InvalidAutoScalingGroupException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidAutoScalingGroupException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidAutoScalingGroupException"
 	}
 	return *e.ErrorCodeOverride
@@ -1267,7 +1267,7 @@ func (e *InvalidBlueGreenDeploymentConfigurationException) ErrorMessage() string
 	return *e.Message
 }
 func (e *InvalidBlueGreenDeploymentConfigurationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidBlueGreenDeploymentConfigurationException"
 	}
 	return *e.ErrorCodeOverride
@@ -1295,7 +1295,7 @@ func (e *InvalidBucketNameFilterException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidBucketNameFilterException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidBucketNameFilterException"
 	}
 	return *e.ErrorCodeOverride
@@ -1322,7 +1322,7 @@ func (e *InvalidComputePlatformException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidComputePlatformException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidComputePlatformException"
 	}
 	return *e.ErrorCodeOverride
@@ -1348,7 +1348,7 @@ func (e *InvalidDeployedStateFilterException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidDeployedStateFilterException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidDeployedStateFilterException"
 	}
 	return *e.ErrorCodeOverride
@@ -1376,7 +1376,7 @@ func (e *InvalidDeploymentConfigNameException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidDeploymentConfigNameException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidDeploymentConfigNameException"
 	}
 	return *e.ErrorCodeOverride
@@ -1404,7 +1404,7 @@ func (e *InvalidDeploymentGroupNameException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidDeploymentGroupNameException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidDeploymentGroupNameException"
 	}
 	return *e.ErrorCodeOverride
@@ -1432,7 +1432,7 @@ func (e *InvalidDeploymentIdException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidDeploymentIdException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidDeploymentIdException"
 	}
 	return *e.ErrorCodeOverride
@@ -1459,7 +1459,7 @@ func (e *InvalidDeploymentInstanceTypeException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidDeploymentInstanceTypeException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidDeploymentInstanceTypeException"
 	}
 	return *e.ErrorCodeOverride
@@ -1487,7 +1487,7 @@ func (e *InvalidDeploymentStatusException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidDeploymentStatusException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidDeploymentStatusException"
 	}
 	return *e.ErrorCodeOverride
@@ -1515,7 +1515,7 @@ func (e *InvalidDeploymentStyleException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidDeploymentStyleException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidDeploymentStyleException"
 	}
 	return *e.ErrorCodeOverride
@@ -1541,7 +1541,7 @@ func (e *InvalidDeploymentTargetIdException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidDeploymentTargetIdException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidDeploymentTargetIdException"
 	}
 	return *e.ErrorCodeOverride
@@ -1569,7 +1569,7 @@ func (e *InvalidDeploymentWaitTypeException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidDeploymentWaitTypeException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidDeploymentWaitTypeException"
 	}
 	return *e.ErrorCodeOverride
@@ -1598,7 +1598,7 @@ func (e *InvalidEC2TagCombinationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidEC2TagCombinationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidEC2TagCombinationException"
 	}
 	return *e.ErrorCodeOverride
@@ -1624,7 +1624,7 @@ func (e *InvalidEC2TagException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidEC2TagException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidEC2TagException"
 	}
 	return *e.ErrorCodeOverride
@@ -1650,7 +1650,7 @@ func (e *InvalidECSServiceException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidECSServiceException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidECSServiceException"
 	}
 	return *e.ErrorCodeOverride
@@ -1676,7 +1676,7 @@ func (e *InvalidExternalIdException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidExternalIdException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidExternalIdException"
 	}
 	return *e.ErrorCodeOverride
@@ -1705,7 +1705,7 @@ func (e *InvalidFileExistsBehaviorException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidFileExistsBehaviorException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidFileExistsBehaviorException"
 	}
 	return *e.ErrorCodeOverride
@@ -1733,7 +1733,7 @@ func (e *InvalidGitHubAccountTokenException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidGitHubAccountTokenException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidGitHubAccountTokenException"
 	}
 	return *e.ErrorCodeOverride
@@ -1761,7 +1761,7 @@ func (e *InvalidGitHubAccountTokenNameException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidGitHubAccountTokenNameException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidGitHubAccountTokenNameException"
 	}
 	return *e.ErrorCodeOverride
@@ -1789,7 +1789,7 @@ func (e *InvalidIamSessionArnException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidIamSessionArnException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidIamSessionArnException"
 	}
 	return *e.ErrorCodeOverride
@@ -1815,7 +1815,7 @@ func (e *InvalidIamUserArnException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidIamUserArnException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidIamUserArnException"
 	}
 	return *e.ErrorCodeOverride
@@ -1842,7 +1842,7 @@ func (e *InvalidIgnoreApplicationStopFailuresValueException) ErrorMessage() stri
 	return *e.Message
 }
 func (e *InvalidIgnoreApplicationStopFailuresValueException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidIgnoreApplicationStopFailuresValueException"
 	}
 	return *e.ErrorCodeOverride
@@ -1870,7 +1870,7 @@ func (e *InvalidInputException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidInputException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidInputException"
 	}
 	return *e.ErrorCodeOverride
@@ -1896,7 +1896,7 @@ func (e *InvalidInstanceNameException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidInstanceNameException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidInstanceNameException"
 	}
 	return *e.ErrorCodeOverride
@@ -1922,7 +1922,7 @@ func (e *InvalidInstanceStatusException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidInstanceStatusException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidInstanceStatusException"
 	}
 	return *e.ErrorCodeOverride
@@ -1950,7 +1950,7 @@ func (e *InvalidInstanceTypeException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidInstanceTypeException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidInstanceTypeException"
 	}
 	return *e.ErrorCodeOverride
@@ -1976,7 +1976,7 @@ func (e *InvalidKeyPrefixFilterException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidKeyPrefixFilterException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidKeyPrefixFilterException"
 	}
 	return *e.ErrorCodeOverride
@@ -2003,7 +2003,7 @@ func (e *InvalidLifecycleEventHookExecutionIdException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidLifecycleEventHookExecutionIdException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidLifecycleEventHookExecutionIdException"
 	}
 	return *e.ErrorCodeOverride
@@ -2032,7 +2032,7 @@ func (e *InvalidLifecycleEventHookExecutionStatusException) ErrorMessage() strin
 	return *e.Message
 }
 func (e *InvalidLifecycleEventHookExecutionStatusException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidLifecycleEventHookExecutionStatusException"
 	}
 	return *e.ErrorCodeOverride
@@ -2060,7 +2060,7 @@ func (e *InvalidLoadBalancerInfoException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidLoadBalancerInfoException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidLoadBalancerInfoException"
 	}
 	return *e.ErrorCodeOverride
@@ -2086,7 +2086,7 @@ func (e *InvalidMinimumHealthyHostValueException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidMinimumHealthyHostValueException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidMinimumHealthyHostValueException"
 	}
 	return *e.ErrorCodeOverride
@@ -2114,7 +2114,7 @@ func (e *InvalidNextTokenException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidNextTokenException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidNextTokenException"
 	}
 	return *e.ErrorCodeOverride
@@ -2141,7 +2141,7 @@ func (e *InvalidOnPremisesTagCombinationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidOnPremisesTagCombinationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidOnPremisesTagCombinationException"
 	}
 	return *e.ErrorCodeOverride
@@ -2169,7 +2169,7 @@ func (e *InvalidOperationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidOperationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidOperationException"
 	}
 	return *e.ErrorCodeOverride
@@ -2195,7 +2195,7 @@ func (e *InvalidRegistrationStatusException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidRegistrationStatusException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidRegistrationStatusException"
 	}
 	return *e.ErrorCodeOverride
@@ -2223,7 +2223,7 @@ func (e *InvalidRevisionException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidRevisionException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidRevisionException"
 	}
 	return *e.ErrorCodeOverride
@@ -2251,7 +2251,7 @@ func (e *InvalidRoleException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidRoleException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidRoleException"
 	}
 	return *e.ErrorCodeOverride
@@ -2278,7 +2278,7 @@ func (e *InvalidSortByException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidSortByException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidSortByException"
 	}
 	return *e.ErrorCodeOverride
@@ -2304,7 +2304,7 @@ func (e *InvalidSortOrderException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidSortOrderException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidSortOrderException"
 	}
 	return *e.ErrorCodeOverride
@@ -2330,7 +2330,7 @@ func (e *InvalidTagException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidTagException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidTagException"
 	}
 	return *e.ErrorCodeOverride
@@ -2356,7 +2356,7 @@ func (e *InvalidTagFilterException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidTagFilterException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidTagFilterException"
 	}
 	return *e.ErrorCodeOverride
@@ -2382,7 +2382,7 @@ func (e *InvalidTagsToAddException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidTagsToAddException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidTagsToAddException"
 	}
 	return *e.ErrorCodeOverride
@@ -2408,7 +2408,7 @@ func (e *InvalidTargetFilterNameException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidTargetFilterNameException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidTargetFilterNameException"
 	}
 	return *e.ErrorCodeOverride
@@ -2434,7 +2434,7 @@ func (e *InvalidTargetGroupPairException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidTargetGroupPairException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidTargetGroupPairException"
 	}
 	return *e.ErrorCodeOverride
@@ -2472,7 +2472,7 @@ func (e *InvalidTargetInstancesException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidTargetInstancesException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidTargetInstancesException"
 	}
 	return *e.ErrorCodeOverride
@@ -2498,7 +2498,7 @@ func (e *InvalidTimeRangeException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidTimeRangeException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidTimeRangeException"
 	}
 	return *e.ErrorCodeOverride
@@ -2525,7 +2525,7 @@ func (e *InvalidTrafficRoutingConfigurationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidTrafficRoutingConfigurationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidTrafficRoutingConfigurationException"
 	}
 	return *e.ErrorCodeOverride
@@ -2553,7 +2553,7 @@ func (e *InvalidTriggerConfigException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidTriggerConfigException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidTriggerConfigException"
 	}
 	return *e.ErrorCodeOverride
@@ -2580,7 +2580,7 @@ func (e *InvalidUpdateOutdatedInstancesOnlyValueException) ErrorMessage() string
 	return *e.Message
 }
 func (e *InvalidUpdateOutdatedInstancesOnlyValueException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidUpdateOutdatedInstancesOnlyValueException"
 	}
 	return *e.ErrorCodeOverride
@@ -2609,7 +2609,7 @@ func (e *LifecycleEventAlreadyCompletedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *LifecycleEventAlreadyCompletedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "LifecycleEventAlreadyCompletedException"
 	}
 	return *e.ErrorCodeOverride
@@ -2637,7 +2637,7 @@ func (e *LifecycleHookLimitExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *LifecycleHookLimitExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "LifecycleHookLimitExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -2666,7 +2666,7 @@ func (e *MultipleIamArnsProvidedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *MultipleIamArnsProvidedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "MultipleIamArnsProvidedException"
 	}
 	return *e.ErrorCodeOverride
@@ -2692,7 +2692,7 @@ func (e *OperationNotSupportedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *OperationNotSupportedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "OperationNotSupportedException"
 	}
 	return *e.ErrorCodeOverride
@@ -2718,7 +2718,7 @@ func (e *ResourceArnRequiredException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceArnRequiredException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceArnRequiredException"
 	}
 	return *e.ErrorCodeOverride
@@ -2744,7 +2744,7 @@ func (e *ResourceValidationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceValidationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceValidationException"
 	}
 	return *e.ErrorCodeOverride
@@ -2771,7 +2771,7 @@ func (e *RevisionDoesNotExistException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *RevisionDoesNotExistException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "RevisionDoesNotExistException"
 	}
 	return *e.ErrorCodeOverride
@@ -2797,7 +2797,7 @@ func (e *RevisionRequiredException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *RevisionRequiredException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "RevisionRequiredException"
 	}
 	return *e.ErrorCodeOverride
@@ -2823,7 +2823,7 @@ func (e *RoleRequiredException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *RoleRequiredException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "RoleRequiredException"
 	}
 	return *e.ErrorCodeOverride
@@ -2849,7 +2849,7 @@ func (e *TagLimitExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TagLimitExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TagLimitExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -2875,7 +2875,7 @@ func (e *TagRequiredException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TagRequiredException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TagRequiredException"
 	}
 	return *e.ErrorCodeOverride
@@ -2902,7 +2902,7 @@ func (e *TagSetListLimitExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TagSetListLimitExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TagSetListLimitExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -2928,7 +2928,7 @@ func (e *ThrottlingException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ThrottlingException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ThrottlingException"
 	}
 	return *e.ErrorCodeOverride
@@ -2954,7 +2954,7 @@ func (e *TriggerTargetsLimitExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TriggerTargetsLimitExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TriggerTargetsLimitExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -2982,7 +2982,7 @@ func (e *UnsupportedActionForDeploymentTypeException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *UnsupportedActionForDeploymentTypeException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "UnsupportedActionForDeploymentTypeException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/codeguruprofiler/types/errors.go b/service/codeguruprofiler/types/errors.go
index c0cbb99f90c..b7d9e8187f1 100644
--- a/service/codeguruprofiler/types/errors.go
+++ b/service/codeguruprofiler/types/errors.go
@@ -28,7 +28,7 @@ func (e *ConflictException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ConflictException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ConflictException"
 	}
 	return *e.ErrorCodeOverride
@@ -54,7 +54,7 @@ func (e *InternalServerException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalServerException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalServerException"
 	}
 	return *e.ErrorCodeOverride
@@ -80,7 +80,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -109,7 +109,7 @@ func (e *ServiceQuotaExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ServiceQuotaExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ServiceQuotaExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -135,7 +135,7 @@ func (e *ThrottlingException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ThrottlingException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ThrottlingException"
 	}
 	return *e.ErrorCodeOverride
@@ -161,7 +161,7 @@ func (e *ValidationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ValidationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ValidationException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/codegurureviewer/types/errors.go b/service/codegurureviewer/types/errors.go
index 2bd29951fd2..3584f67dc0c 100644
--- a/service/codegurureviewer/types/errors.go
+++ b/service/codegurureviewer/types/errors.go
@@ -26,7 +26,7 @@ func (e *AccessDeniedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AccessDeniedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AccessDeniedException"
 	}
 	return *e.ErrorCodeOverride
@@ -54,7 +54,7 @@ func (e *ConflictException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ConflictException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ConflictException"
 	}
 	return *e.ErrorCodeOverride
@@ -80,7 +80,7 @@ func (e *InternalServerException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalServerException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalServerException"
 	}
 	return *e.ErrorCodeOverride
@@ -106,7 +106,7 @@ func (e *NotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *NotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "NotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -132,7 +132,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -158,7 +158,7 @@ func (e *ThrottlingException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ThrottlingException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ThrottlingException"
 	}
 	return *e.ErrorCodeOverride
@@ -184,7 +184,7 @@ func (e *ValidationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ValidationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ValidationException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/codepipeline/types/errors.go b/service/codepipeline/types/errors.go
index a184fbd7e64..d908294ad41 100644
--- a/service/codepipeline/types/errors.go
+++ b/service/codepipeline/types/errors.go
@@ -26,7 +26,7 @@ func (e *ActionNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ActionNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ActionNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -52,7 +52,7 @@ func (e *ActionTypeNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ActionTypeNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ActionTypeNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -78,7 +78,7 @@ func (e *ApprovalAlreadyCompletedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ApprovalAlreadyCompletedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ApprovalAlreadyCompletedException"
 	}
 	return *e.ErrorCodeOverride
@@ -104,7 +104,7 @@ func (e *ConcurrentModificationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ConcurrentModificationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ConcurrentModificationException"
 	}
 	return *e.ErrorCodeOverride
@@ -131,7 +131,7 @@ func (e *ConflictException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ConflictException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ConflictException"
 	}
 	return *e.ErrorCodeOverride
@@ -161,7 +161,7 @@ func (e *DuplicatedStopRequestException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DuplicatedStopRequestException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DuplicatedStopRequestException"
 	}
 	return *e.ErrorCodeOverride
@@ -187,7 +187,7 @@ func (e *InvalidActionDeclarationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidActionDeclarationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidActionDeclarationException"
 	}
 	return *e.ErrorCodeOverride
@@ -213,7 +213,7 @@ func (e *InvalidApprovalTokenException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidApprovalTokenException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidApprovalTokenException"
 	}
 	return *e.ErrorCodeOverride
@@ -239,7 +239,7 @@ func (e *InvalidArnException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidArnException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidArnException"
 	}
 	return *e.ErrorCodeOverride
@@ -265,7 +265,7 @@ func (e *InvalidBlockerDeclarationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidBlockerDeclarationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidBlockerDeclarationException"
 	}
 	return *e.ErrorCodeOverride
@@ -293,7 +293,7 @@ func (e *InvalidClientTokenException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidClientTokenException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidClientTokenException"
 	}
 	return *e.ErrorCodeOverride
@@ -319,7 +319,7 @@ func (e *InvalidJobException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidJobException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidJobException"
 	}
 	return *e.ErrorCodeOverride
@@ -345,7 +345,7 @@ func (e *InvalidJobStateException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidJobStateException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidJobStateException"
 	}
 	return *e.ErrorCodeOverride
@@ -372,7 +372,7 @@ func (e *InvalidNextTokenException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidNextTokenException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidNextTokenException"
 	}
 	return *e.ErrorCodeOverride
@@ -398,7 +398,7 @@ func (e *InvalidNonceException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidNonceException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidNonceException"
 	}
 	return *e.ErrorCodeOverride
@@ -424,7 +424,7 @@ func (e *InvalidStageDeclarationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidStageDeclarationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidStageDeclarationException"
 	}
 	return *e.ErrorCodeOverride
@@ -450,7 +450,7 @@ func (e *InvalidStructureException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidStructureException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidStructureException"
 	}
 	return *e.ErrorCodeOverride
@@ -476,7 +476,7 @@ func (e *InvalidTagsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidTagsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidTagsException"
 	}
 	return *e.ErrorCodeOverride
@@ -502,7 +502,7 @@ func (e *InvalidWebhookAuthenticationParametersException) ErrorMessage() string
 	return *e.Message
 }
 func (e *InvalidWebhookAuthenticationParametersException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidWebhookAuthenticationParametersException"
 	}
 	return *e.ErrorCodeOverride
@@ -530,7 +530,7 @@ func (e *InvalidWebhookFilterPatternException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidWebhookFilterPatternException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidWebhookFilterPatternException"
 	}
 	return *e.ErrorCodeOverride
@@ -558,7 +558,7 @@ func (e *JobNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *JobNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "JobNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -585,7 +585,7 @@ func (e *LimitExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *LimitExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "LimitExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -612,7 +612,7 @@ func (e *NotLatestPipelineExecutionException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *NotLatestPipelineExecutionException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "NotLatestPipelineExecutionException"
 	}
 	return *e.ErrorCodeOverride
@@ -640,7 +640,7 @@ func (e *OutputVariablesSizeExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *OutputVariablesSizeExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "OutputVariablesSizeExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -669,7 +669,7 @@ func (e *PipelineExecutionNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *PipelineExecutionNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "PipelineExecutionNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -698,7 +698,7 @@ func (e *PipelineExecutionNotStoppableException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *PipelineExecutionNotStoppableException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "PipelineExecutionNotStoppableException"
 	}
 	return *e.ErrorCodeOverride
@@ -726,7 +726,7 @@ func (e *PipelineNameInUseException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *PipelineNameInUseException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "PipelineNameInUseException"
 	}
 	return *e.ErrorCodeOverride
@@ -752,7 +752,7 @@ func (e *PipelineNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *PipelineNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "PipelineNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -778,7 +778,7 @@ func (e *PipelineVersionNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *PipelineVersionNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "PipelineVersionNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -804,7 +804,7 @@ func (e *RequestFailedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *RequestFailedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "RequestFailedException"
 	}
 	return *e.ErrorCodeOverride
@@ -830,7 +830,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -856,7 +856,7 @@ func (e *StageNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *StageNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "StageNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -883,7 +883,7 @@ func (e *StageNotRetryableException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *StageNotRetryableException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "StageNotRetryableException"
 	}
 	return *e.ErrorCodeOverride
@@ -909,7 +909,7 @@ func (e *TooManyTagsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TooManyTagsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TooManyTagsException"
 	}
 	return *e.ErrorCodeOverride
@@ -935,7 +935,7 @@ func (e *ValidationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ValidationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ValidationException"
 	}
 	return *e.ErrorCodeOverride
@@ -961,7 +961,7 @@ func (e *WebhookNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *WebhookNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "WebhookNotFoundException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/codestar/types/errors.go b/service/codestar/types/errors.go
index 458b314eaeb..65917b7eb5b 100644
--- a/service/codestar/types/errors.go
+++ b/service/codestar/types/errors.go
@@ -27,7 +27,7 @@ func (e *ConcurrentModificationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ConcurrentModificationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ConcurrentModificationException"
 	}
 	return *e.ErrorCodeOverride
@@ -53,7 +53,7 @@ func (e *InvalidNextTokenException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidNextTokenException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidNextTokenException"
 	}
 	return *e.ErrorCodeOverride
@@ -79,7 +79,7 @@ func (e *InvalidServiceRoleException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidServiceRoleException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidServiceRoleException"
 	}
 	return *e.ErrorCodeOverride
@@ -105,7 +105,7 @@ func (e *LimitExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *LimitExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "LimitExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -133,7 +133,7 @@ func (e *ProjectAlreadyExistsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ProjectAlreadyExistsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ProjectAlreadyExistsException"
 	}
 	return *e.ErrorCodeOverride
@@ -159,7 +159,7 @@ func (e *ProjectConfigurationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ProjectConfigurationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ProjectConfigurationException"
 	}
 	return *e.ErrorCodeOverride
@@ -187,7 +187,7 @@ func (e *ProjectCreationFailedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ProjectCreationFailedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ProjectCreationFailedException"
 	}
 	return *e.ErrorCodeOverride
@@ -213,7 +213,7 @@ func (e *ProjectNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ProjectNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ProjectNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -239,7 +239,7 @@ func (e *TeamMemberAlreadyAssociatedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TeamMemberAlreadyAssociatedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TeamMemberAlreadyAssociatedException"
 	}
 	return *e.ErrorCodeOverride
@@ -267,7 +267,7 @@ func (e *TeamMemberNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TeamMemberNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TeamMemberNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -295,7 +295,7 @@ func (e *UserProfileAlreadyExistsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *UserProfileAlreadyExistsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "UserProfileAlreadyExistsException"
 	}
 	return *e.ErrorCodeOverride
@@ -321,7 +321,7 @@ func (e *UserProfileNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *UserProfileNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "UserProfileNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -347,7 +347,7 @@ func (e *ValidationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ValidationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ValidationException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/codestarconnections/types/errors.go b/service/codestarconnections/types/errors.go
index 49672e60c5c..46bc17758cb 100644
--- a/service/codestarconnections/types/errors.go
+++ b/service/codestarconnections/types/errors.go
@@ -26,7 +26,7 @@ func (e *ConflictException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ConflictException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ConflictException"
 	}
 	return *e.ErrorCodeOverride
@@ -52,7 +52,7 @@ func (e *LimitExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *LimitExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "LimitExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -78,7 +78,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -104,7 +104,7 @@ func (e *ResourceUnavailableException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceUnavailableException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceUnavailableException"
 	}
 	return *e.ErrorCodeOverride
@@ -130,7 +130,7 @@ func (e *UnsupportedOperationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *UnsupportedOperationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "UnsupportedOperationException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/codestarnotifications/types/errors.go b/service/codestarnotifications/types/errors.go
index acfcf2288ac..6d592fcfa8d 100644
--- a/service/codestarnotifications/types/errors.go
+++ b/service/codestarnotifications/types/errors.go
@@ -27,7 +27,7 @@ func (e *AccessDeniedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AccessDeniedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AccessDeniedException"
 	}
 	return *e.ErrorCodeOverride
@@ -54,7 +54,7 @@ func (e *ConcurrentModificationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ConcurrentModificationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ConcurrentModificationException"
 	}
 	return *e.ErrorCodeOverride
@@ -80,7 +80,7 @@ func (e *ConfigurationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ConfigurationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ConfigurationException"
 	}
 	return *e.ErrorCodeOverride
@@ -107,7 +107,7 @@ func (e *InvalidNextTokenException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidNextTokenException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidNextTokenException"
 	}
 	return *e.ErrorCodeOverride
@@ -135,7 +135,7 @@ func (e *LimitExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *LimitExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "LimitExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -162,7 +162,7 @@ func (e *ResourceAlreadyExistsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceAlreadyExistsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceAlreadyExistsException"
 	}
 	return *e.ErrorCodeOverride
@@ -188,7 +188,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -214,7 +214,7 @@ func (e *ValidationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ValidationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ValidationException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/cognitoidentity/types/errors.go b/service/cognitoidentity/types/errors.go
index 738ac14817b..d87a6973982 100644
--- a/service/cognitoidentity/types/errors.go
+++ b/service/cognitoidentity/types/errors.go
@@ -26,7 +26,7 @@ func (e *ConcurrentModificationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ConcurrentModificationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ConcurrentModificationException"
 	}
 	return *e.ErrorCodeOverride
@@ -53,7 +53,7 @@ func (e *DeveloperUserAlreadyRegisteredException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DeveloperUserAlreadyRegisteredException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DeveloperUserAlreadyRegisteredException"
 	}
 	return *e.ErrorCodeOverride
@@ -82,7 +82,7 @@ func (e *ExternalServiceException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ExternalServiceException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ExternalServiceException"
 	}
 	return *e.ErrorCodeOverride
@@ -108,7 +108,7 @@ func (e *InternalErrorException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalErrorException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalErrorException"
 	}
 	return *e.ErrorCodeOverride
@@ -135,7 +135,7 @@ func (e *InvalidIdentityPoolConfigurationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidIdentityPoolConfigurationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidIdentityPoolConfigurationException"
 	}
 	return *e.ErrorCodeOverride
@@ -163,7 +163,7 @@ func (e *InvalidParameterException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidParameterException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidParameterException"
 	}
 	return *e.ErrorCodeOverride
@@ -189,7 +189,7 @@ func (e *LimitExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *LimitExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "LimitExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -215,7 +215,7 @@ func (e *NotAuthorizedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *NotAuthorizedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "NotAuthorizedException"
 	}
 	return *e.ErrorCodeOverride
@@ -242,7 +242,7 @@ func (e *ResourceConflictException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceConflictException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceConflictException"
 	}
 	return *e.ErrorCodeOverride
@@ -269,7 +269,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -295,7 +295,7 @@ func (e *TooManyRequestsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TooManyRequestsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TooManyRequestsException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/cognitoidentityprovider/types/errors.go b/service/cognitoidentityprovider/types/errors.go
index af6d942a362..e4f7d172e62 100644
--- a/service/cognitoidentityprovider/types/errors.go
+++ b/service/cognitoidentityprovider/types/errors.go
@@ -30,7 +30,7 @@ func (e *AliasExistsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AliasExistsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AliasExistsException"
 	}
 	return *e.ErrorCodeOverride
@@ -56,7 +56,7 @@ func (e *CodeDeliveryFailureException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *CodeDeliveryFailureException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "CodeDeliveryFailureException"
 	}
 	return *e.ErrorCodeOverride
@@ -83,7 +83,7 @@ func (e *CodeMismatchException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *CodeMismatchException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "CodeMismatchException"
 	}
 	return *e.ErrorCodeOverride
@@ -110,7 +110,7 @@ func (e *ConcurrentModificationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ConcurrentModificationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ConcurrentModificationException"
 	}
 	return *e.ErrorCodeOverride
@@ -137,7 +137,7 @@ func (e *DuplicateProviderException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DuplicateProviderException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DuplicateProviderException"
 	}
 	return *e.ErrorCodeOverride
@@ -164,7 +164,7 @@ func (e *EnableSoftwareTokenMFAException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *EnableSoftwareTokenMFAException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "EnableSoftwareTokenMFAException"
 	}
 	return *e.ErrorCodeOverride
@@ -190,7 +190,7 @@ func (e *ExpiredCodeException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ExpiredCodeException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ExpiredCodeException"
 	}
 	return *e.ErrorCodeOverride
@@ -217,7 +217,7 @@ func (e *ForbiddenException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ForbiddenException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ForbiddenException"
 	}
 	return *e.ErrorCodeOverride
@@ -244,7 +244,7 @@ func (e *GroupExistsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *GroupExistsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "GroupExistsException"
 	}
 	return *e.ErrorCodeOverride
@@ -270,7 +270,7 @@ func (e *InternalErrorException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalErrorException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalErrorException"
 	}
 	return *e.ErrorCodeOverride
@@ -297,7 +297,7 @@ func (e *InvalidEmailRoleAccessPolicyException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidEmailRoleAccessPolicyException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidEmailRoleAccessPolicyException"
 	}
 	return *e.ErrorCodeOverride
@@ -326,7 +326,7 @@ func (e *InvalidLambdaResponseException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidLambdaResponseException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidLambdaResponseException"
 	}
 	return *e.ErrorCodeOverride
@@ -352,7 +352,7 @@ func (e *InvalidOAuthFlowException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidOAuthFlowException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidOAuthFlowException"
 	}
 	return *e.ErrorCodeOverride
@@ -379,7 +379,7 @@ func (e *InvalidParameterException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidParameterException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidParameterException"
 	}
 	return *e.ErrorCodeOverride
@@ -405,7 +405,7 @@ func (e *InvalidPasswordException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidPasswordException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidPasswordException"
 	}
 	return *e.ErrorCodeOverride
@@ -432,7 +432,7 @@ func (e *InvalidSmsRoleAccessPolicyException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidSmsRoleAccessPolicyException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidSmsRoleAccessPolicyException"
 	}
 	return *e.ErrorCodeOverride
@@ -463,7 +463,7 @@ func (e *InvalidSmsRoleTrustRelationshipException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidSmsRoleTrustRelationshipException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidSmsRoleTrustRelationshipException"
 	}
 	return *e.ErrorCodeOverride
@@ -491,7 +491,7 @@ func (e *InvalidUserPoolConfigurationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidUserPoolConfigurationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidUserPoolConfigurationException"
 	}
 	return *e.ErrorCodeOverride
@@ -520,7 +520,7 @@ func (e *LimitExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *LimitExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "LimitExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -547,7 +547,7 @@ func (e *MFAMethodNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *MFAMethodNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "MFAMethodNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -573,7 +573,7 @@ func (e *NotAuthorizedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *NotAuthorizedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "NotAuthorizedException"
 	}
 	return *e.ErrorCodeOverride
@@ -599,7 +599,7 @@ func (e *PasswordResetRequiredException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *PasswordResetRequiredException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "PasswordResetRequiredException"
 	}
 	return *e.ErrorCodeOverride
@@ -625,7 +625,7 @@ func (e *PreconditionNotMetException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *PreconditionNotMetException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "PreconditionNotMetException"
 	}
 	return *e.ErrorCodeOverride
@@ -652,7 +652,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -678,7 +678,7 @@ func (e *ScopeDoesNotExistException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ScopeDoesNotExistException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ScopeDoesNotExistException"
 	}
 	return *e.ErrorCodeOverride
@@ -705,7 +705,7 @@ func (e *SoftwareTokenMFANotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *SoftwareTokenMFANotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "SoftwareTokenMFANotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -732,7 +732,7 @@ func (e *TooManyFailedAttemptsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TooManyFailedAttemptsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TooManyFailedAttemptsException"
 	}
 	return *e.ErrorCodeOverride
@@ -759,7 +759,7 @@ func (e *TooManyRequestsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TooManyRequestsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TooManyRequestsException"
 	}
 	return *e.ErrorCodeOverride
@@ -786,7 +786,7 @@ func (e *UnauthorizedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *UnauthorizedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "UnauthorizedException"
 	}
 	return *e.ErrorCodeOverride
@@ -813,7 +813,7 @@ func (e *UnexpectedLambdaException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *UnexpectedLambdaException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "UnexpectedLambdaException"
 	}
 	return *e.ErrorCodeOverride
@@ -839,7 +839,7 @@ func (e *UnsupportedIdentityProviderException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *UnsupportedIdentityProviderException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "UnsupportedIdentityProviderException"
 	}
 	return *e.ErrorCodeOverride
@@ -868,7 +868,7 @@ func (e *UnsupportedOperationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *UnsupportedOperationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "UnsupportedOperationException"
 	}
 	return *e.ErrorCodeOverride
@@ -894,7 +894,7 @@ func (e *UnsupportedTokenTypeException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *UnsupportedTokenTypeException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "UnsupportedTokenTypeException"
 	}
 	return *e.ErrorCodeOverride
@@ -920,7 +920,7 @@ func (e *UnsupportedUserStateException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *UnsupportedUserStateException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "UnsupportedUserStateException"
 	}
 	return *e.ErrorCodeOverride
@@ -947,7 +947,7 @@ func (e *UserImportInProgressException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *UserImportInProgressException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "UserImportInProgressException"
 	}
 	return *e.ErrorCodeOverride
@@ -974,7 +974,7 @@ func (e *UserLambdaValidationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *UserLambdaValidationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "UserLambdaValidationException"
 	}
 	return *e.ErrorCodeOverride
@@ -1001,7 +1001,7 @@ func (e *UsernameExistsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *UsernameExistsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "UsernameExistsException"
 	}
 	return *e.ErrorCodeOverride
@@ -1027,7 +1027,7 @@ func (e *UserNotConfirmedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *UserNotConfirmedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "UserNotConfirmedException"
 	}
 	return *e.ErrorCodeOverride
@@ -1053,7 +1053,7 @@ func (e *UserNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *UserNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "UserNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -1079,7 +1079,7 @@ func (e *UserPoolAddOnNotEnabledException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *UserPoolAddOnNotEnabledException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "UserPoolAddOnNotEnabledException"
 	}
 	return *e.ErrorCodeOverride
@@ -1105,7 +1105,7 @@ func (e *UserPoolTaggingException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *UserPoolTaggingException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "UserPoolTaggingException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/cognitosync/types/errors.go b/service/cognitosync/types/errors.go
index 4785bb2d844..0d21e220a32 100644
--- a/service/cognitosync/types/errors.go
+++ b/service/cognitosync/types/errors.go
@@ -27,7 +27,7 @@ func (e *AlreadyStreamedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AlreadyStreamedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AlreadyStreamedException"
 	}
 	return *e.ErrorCodeOverride
@@ -53,7 +53,7 @@ func (e *ConcurrentModificationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ConcurrentModificationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ConcurrentModificationException"
 	}
 	return *e.ErrorCodeOverride
@@ -80,7 +80,7 @@ func (e *DuplicateRequestException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DuplicateRequestException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DuplicateRequestException"
 	}
 	return *e.ErrorCodeOverride
@@ -106,7 +106,7 @@ func (e *InternalErrorException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalErrorException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalErrorException"
 	}
 	return *e.ErrorCodeOverride
@@ -131,7 +131,7 @@ func (e *InvalidConfigurationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidConfigurationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidConfigurationException"
 	}
 	return *e.ErrorCodeOverride
@@ -157,7 +157,7 @@ func (e *InvalidLambdaFunctionOutputException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidLambdaFunctionOutputException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidLambdaFunctionOutputException"
 	}
 	return *e.ErrorCodeOverride
@@ -185,7 +185,7 @@ func (e *InvalidParameterException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidParameterException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidParameterException"
 	}
 	return *e.ErrorCodeOverride
@@ -211,7 +211,7 @@ func (e *LambdaThrottledException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *LambdaThrottledException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "LambdaThrottledException"
 	}
 	return *e.ErrorCodeOverride
@@ -237,7 +237,7 @@ func (e *LimitExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *LimitExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "LimitExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -263,7 +263,7 @@ func (e *NotAuthorizedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *NotAuthorizedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "NotAuthorizedException"
 	}
 	return *e.ErrorCodeOverride
@@ -290,7 +290,7 @@ func (e *ResourceConflictException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceConflictException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceConflictException"
 	}
 	return *e.ErrorCodeOverride
@@ -316,7 +316,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -342,7 +342,7 @@ func (e *TooManyRequestsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TooManyRequestsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TooManyRequestsException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/comprehend/types/errors.go b/service/comprehend/types/errors.go
index 1e4814f0b1d..2000ea6abf6 100644
--- a/service/comprehend/types/errors.go
+++ b/service/comprehend/types/errors.go
@@ -27,7 +27,7 @@ func (e *BatchSizeLimitExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *BatchSizeLimitExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "BatchSizeLimitExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -54,7 +54,7 @@ func (e *ConcurrentModificationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ConcurrentModificationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ConcurrentModificationException"
 	}
 	return *e.ErrorCodeOverride
@@ -80,7 +80,7 @@ func (e *InternalServerException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalServerException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalServerException"
 	}
 	return *e.ErrorCodeOverride
@@ -106,7 +106,7 @@ func (e *InvalidFilterException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidFilterException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidFilterException"
 	}
 	return *e.ErrorCodeOverride
@@ -135,7 +135,7 @@ func (e *InvalidRequestException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidRequestException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidRequestException"
 	}
 	return *e.ErrorCodeOverride
@@ -161,7 +161,7 @@ func (e *JobNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *JobNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "JobNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -188,7 +188,7 @@ func (e *KmsKeyValidationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *KmsKeyValidationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "KmsKeyValidationException"
 	}
 	return *e.ErrorCodeOverride
@@ -215,7 +215,7 @@ func (e *ResourceInUseException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceInUseException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceInUseException"
 	}
 	return *e.ErrorCodeOverride
@@ -242,7 +242,7 @@ func (e *ResourceLimitExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceLimitExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceLimitExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -269,7 +269,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -296,7 +296,7 @@ func (e *ResourceUnavailableException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceUnavailableException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceUnavailableException"
 	}
 	return *e.ErrorCodeOverride
@@ -322,7 +322,7 @@ func (e *TextSizeLimitExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TextSizeLimitExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TextSizeLimitExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -348,7 +348,7 @@ func (e *TooManyRequestsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TooManyRequestsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TooManyRequestsException"
 	}
 	return *e.ErrorCodeOverride
@@ -375,7 +375,7 @@ func (e *TooManyTagKeysException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TooManyTagKeysException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TooManyTagKeysException"
 	}
 	return *e.ErrorCodeOverride
@@ -403,7 +403,7 @@ func (e *TooManyTagsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TooManyTagsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TooManyTagsException"
 	}
 	return *e.ErrorCodeOverride
@@ -433,7 +433,7 @@ func (e *UnsupportedLanguageException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *UnsupportedLanguageException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "UnsupportedLanguageException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/comprehendmedical/types/errors.go b/service/comprehendmedical/types/errors.go
index 0f13b08c0a4..1fbf57033d0 100644
--- a/service/comprehendmedical/types/errors.go
+++ b/service/comprehendmedical/types/errors.go
@@ -26,7 +26,7 @@ func (e *InternalServerException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalServerException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalServerException"
 	}
 	return *e.ErrorCodeOverride
@@ -53,7 +53,7 @@ func (e *InvalidEncodingException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidEncodingException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidEncodingException"
 	}
 	return *e.ErrorCodeOverride
@@ -80,7 +80,7 @@ func (e *InvalidRequestException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidRequestException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidRequestException"
 	}
 	return *e.ErrorCodeOverride
@@ -107,7 +107,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -134,7 +134,7 @@ func (e *ServiceUnavailableException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ServiceUnavailableException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ServiceUnavailableException"
 	}
 	return *e.ErrorCodeOverride
@@ -161,7 +161,7 @@ func (e *TextSizeLimitExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TextSizeLimitExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TextSizeLimitExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -189,7 +189,7 @@ func (e *TooManyRequestsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TooManyRequestsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TooManyRequestsException"
 	}
 	return *e.ErrorCodeOverride
@@ -216,7 +216,7 @@ func (e *ValidationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ValidationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ValidationException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/computeoptimizer/types/errors.go b/service/computeoptimizer/types/errors.go
index 90aa799be4c..23ef647f6ff 100644
--- a/service/computeoptimizer/types/errors.go
+++ b/service/computeoptimizer/types/errors.go
@@ -26,7 +26,7 @@ func (e *AccessDeniedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AccessDeniedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AccessDeniedException"
 	}
 	return *e.ErrorCodeOverride
@@ -52,7 +52,7 @@ func (e *InternalServerException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalServerException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalServerException"
 	}
 	return *e.ErrorCodeOverride
@@ -78,7 +78,7 @@ func (e *InvalidParameterValueException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidParameterValueException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidParameterValueException"
 	}
 	return *e.ErrorCodeOverride
@@ -104,7 +104,7 @@ func (e *LimitExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *LimitExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "LimitExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -131,7 +131,7 @@ func (e *MissingAuthenticationToken) ErrorMessage() string {
 	return *e.Message
 }
 func (e *MissingAuthenticationToken) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "MissingAuthenticationToken"
 	}
 	return *e.ErrorCodeOverride
@@ -157,7 +157,7 @@ func (e *OptInRequiredException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *OptInRequiredException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "OptInRequiredException"
 	}
 	return *e.ErrorCodeOverride
@@ -183,7 +183,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -209,7 +209,7 @@ func (e *ServiceUnavailableException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ServiceUnavailableException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ServiceUnavailableException"
 	}
 	return *e.ErrorCodeOverride
@@ -235,7 +235,7 @@ func (e *ThrottlingException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ThrottlingException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ThrottlingException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/configservice/types/errors.go b/service/configservice/types/errors.go
index 1f6f6dc8a56..e0f36486de1 100644
--- a/service/configservice/types/errors.go
+++ b/service/configservice/types/errors.go
@@ -26,7 +26,7 @@ func (e *ConformancePackTemplateValidationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ConformancePackTemplateValidationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ConformancePackTemplateValidationException"
 	}
 	return *e.ErrorCodeOverride
@@ -55,7 +55,7 @@ func (e *IdempotentParameterMismatch) ErrorMessage() string {
 	return *e.Message
 }
 func (e *IdempotentParameterMismatch) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "IdempotentParameterMismatch"
 	}
 	return *e.ErrorCodeOverride
@@ -81,7 +81,7 @@ func (e *InsufficientDeliveryPolicyException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InsufficientDeliveryPolicyException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InsufficientDeliveryPolicyException"
 	}
 	return *e.ErrorCodeOverride
@@ -131,7 +131,7 @@ func (e *InsufficientPermissionsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InsufficientPermissionsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InsufficientPermissionsException"
 	}
 	return *e.ErrorCodeOverride
@@ -157,7 +157,7 @@ func (e *InvalidConfigurationRecorderNameException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidConfigurationRecorderNameException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidConfigurationRecorderNameException"
 	}
 	return *e.ErrorCodeOverride
@@ -185,7 +185,7 @@ func (e *InvalidDeliveryChannelNameException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidDeliveryChannelNameException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidDeliveryChannelNameException"
 	}
 	return *e.ErrorCodeOverride
@@ -213,7 +213,7 @@ func (e *InvalidExpressionException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidExpressionException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidExpressionException"
 	}
 	return *e.ErrorCodeOverride
@@ -239,7 +239,7 @@ func (e *InvalidLimitException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidLimitException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidLimitException"
 	}
 	return *e.ErrorCodeOverride
@@ -266,7 +266,7 @@ func (e *InvalidNextTokenException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidNextTokenException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidNextTokenException"
 	}
 	return *e.ErrorCodeOverride
@@ -293,7 +293,7 @@ func (e *InvalidParameterValueException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidParameterValueException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidParameterValueException"
 	}
 	return *e.ErrorCodeOverride
@@ -320,7 +320,7 @@ func (e *InvalidRecordingGroupException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidRecordingGroupException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidRecordingGroupException"
 	}
 	return *e.ErrorCodeOverride
@@ -346,7 +346,7 @@ func (e *InvalidResultTokenException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidResultTokenException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidResultTokenException"
 	}
 	return *e.ErrorCodeOverride
@@ -372,7 +372,7 @@ func (e *InvalidRoleException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidRoleException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidRoleException"
 	}
 	return *e.ErrorCodeOverride
@@ -398,7 +398,7 @@ func (e *InvalidS3KeyPrefixException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidS3KeyPrefixException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidS3KeyPrefixException"
 	}
 	return *e.ErrorCodeOverride
@@ -424,7 +424,7 @@ func (e *InvalidS3KmsKeyArnException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidS3KmsKeyArnException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidS3KmsKeyArnException"
 	}
 	return *e.ErrorCodeOverride
@@ -450,7 +450,7 @@ func (e *InvalidSNSTopicARNException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidSNSTopicARNException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidSNSTopicARNException"
 	}
 	return *e.ErrorCodeOverride
@@ -477,7 +477,7 @@ func (e *InvalidTimeRangeException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidTimeRangeException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidTimeRangeException"
 	}
 	return *e.ErrorCodeOverride
@@ -504,7 +504,7 @@ func (e *LastDeliveryChannelDeleteFailedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *LastDeliveryChannelDeleteFailedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "LastDeliveryChannelDeleteFailedException"
 	}
 	return *e.ErrorCodeOverride
@@ -535,7 +535,7 @@ func (e *LimitExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *LimitExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "LimitExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -563,7 +563,7 @@ func (e *MaxActiveResourcesExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *MaxActiveResourcesExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "MaxActiveResourcesExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -593,7 +593,7 @@ func (e *MaxNumberOfConfigRulesExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *MaxNumberOfConfigRulesExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "MaxNumberOfConfigRulesExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -621,7 +621,7 @@ func (e *MaxNumberOfConfigurationRecordersExceededException) ErrorMessage() stri
 	return *e.Message
 }
 func (e *MaxNumberOfConfigurationRecordersExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "MaxNumberOfConfigurationRecordersExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -652,7 +652,7 @@ func (e *MaxNumberOfConformancePacksExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *MaxNumberOfConformancePacksExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "MaxNumberOfConformancePacksExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -680,7 +680,7 @@ func (e *MaxNumberOfDeliveryChannelsExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *MaxNumberOfDeliveryChannelsExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "MaxNumberOfDeliveryChannelsExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -711,7 +711,7 @@ func (e *MaxNumberOfOrganizationConfigRulesExceededException) ErrorMessage() str
 	return *e.Message
 }
 func (e *MaxNumberOfOrganizationConfigRulesExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "MaxNumberOfOrganizationConfigRulesExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -742,7 +742,7 @@ func (e *MaxNumberOfOrganizationConformancePacksExceededException) ErrorMessage(
 	return *e.Message
 }
 func (e *MaxNumberOfOrganizationConformancePacksExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "MaxNumberOfOrganizationConformancePacksExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -771,7 +771,7 @@ func (e *MaxNumberOfRetentionConfigurationsExceededException) ErrorMessage() str
 	return *e.Message
 }
 func (e *MaxNumberOfRetentionConfigurationsExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "MaxNumberOfRetentionConfigurationsExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -800,7 +800,7 @@ func (e *NoAvailableConfigurationRecorderException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *NoAvailableConfigurationRecorderException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "NoAvailableConfigurationRecorderException"
 	}
 	return *e.ErrorCodeOverride
@@ -828,7 +828,7 @@ func (e *NoAvailableDeliveryChannelException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *NoAvailableDeliveryChannelException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "NoAvailableDeliveryChannelException"
 	}
 	return *e.ErrorCodeOverride
@@ -856,7 +856,7 @@ func (e *NoAvailableOrganizationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *NoAvailableOrganizationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "NoAvailableOrganizationException"
 	}
 	return *e.ErrorCodeOverride
@@ -882,7 +882,7 @@ func (e *NoRunningConfigurationRecorderException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *NoRunningConfigurationRecorderException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "NoRunningConfigurationRecorderException"
 	}
 	return *e.ErrorCodeOverride
@@ -910,7 +910,7 @@ func (e *NoSuchBucketException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *NoSuchBucketException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "NoSuchBucketException"
 	}
 	return *e.ErrorCodeOverride
@@ -938,7 +938,7 @@ func (e *NoSuchConfigRuleException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *NoSuchConfigRuleException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "NoSuchConfigRuleException"
 	}
 	return *e.ErrorCodeOverride
@@ -964,7 +964,7 @@ func (e *NoSuchConfigRuleInConformancePackException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *NoSuchConfigRuleInConformancePackException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "NoSuchConfigRuleInConformancePackException"
 	}
 	return *e.ErrorCodeOverride
@@ -992,7 +992,7 @@ func (e *NoSuchConfigurationAggregatorException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *NoSuchConfigurationAggregatorException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "NoSuchConfigurationAggregatorException"
 	}
 	return *e.ErrorCodeOverride
@@ -1020,7 +1020,7 @@ func (e *NoSuchConfigurationRecorderException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *NoSuchConfigurationRecorderException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "NoSuchConfigurationRecorderException"
 	}
 	return *e.ErrorCodeOverride
@@ -1048,7 +1048,7 @@ func (e *NoSuchConformancePackException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *NoSuchConformancePackException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "NoSuchConformancePackException"
 	}
 	return *e.ErrorCodeOverride
@@ -1074,7 +1074,7 @@ func (e *NoSuchDeliveryChannelException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *NoSuchDeliveryChannelException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "NoSuchDeliveryChannelException"
 	}
 	return *e.ErrorCodeOverride
@@ -1102,7 +1102,7 @@ func (e *NoSuchOrganizationConfigRuleException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *NoSuchOrganizationConfigRuleException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "NoSuchOrganizationConfigRuleException"
 	}
 	return *e.ErrorCodeOverride
@@ -1132,7 +1132,7 @@ func (e *NoSuchOrganizationConformancePackException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *NoSuchOrganizationConformancePackException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "NoSuchOrganizationConformancePackException"
 	}
 	return *e.ErrorCodeOverride
@@ -1160,7 +1160,7 @@ func (e *NoSuchRemediationConfigurationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *NoSuchRemediationConfigurationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "NoSuchRemediationConfigurationException"
 	}
 	return *e.ErrorCodeOverride
@@ -1188,7 +1188,7 @@ func (e *NoSuchRemediationExceptionException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *NoSuchRemediationExceptionException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "NoSuchRemediationExceptionException"
 	}
 	return *e.ErrorCodeOverride
@@ -1216,7 +1216,7 @@ func (e *NoSuchRetentionConfigurationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *NoSuchRetentionConfigurationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "NoSuchRetentionConfigurationException"
 	}
 	return *e.ErrorCodeOverride
@@ -1269,7 +1269,7 @@ func (e *OrganizationAccessDeniedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *OrganizationAccessDeniedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "OrganizationAccessDeniedException"
 	}
 	return *e.ErrorCodeOverride
@@ -1296,7 +1296,7 @@ func (e *OrganizationAllFeaturesNotEnabledException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *OrganizationAllFeaturesNotEnabledException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "OrganizationAllFeaturesNotEnabledException"
 	}
 	return *e.ErrorCodeOverride
@@ -1324,7 +1324,7 @@ func (e *OrganizationConformancePackTemplateValidationException) ErrorMessage()
 	return *e.Message
 }
 func (e *OrganizationConformancePackTemplateValidationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "OrganizationConformancePackTemplateValidationException"
 	}
 	return *e.ErrorCodeOverride
@@ -1352,7 +1352,7 @@ func (e *OversizedConfigurationItemException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *OversizedConfigurationItemException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "OversizedConfigurationItemException"
 	}
 	return *e.ErrorCodeOverride
@@ -1381,7 +1381,7 @@ func (e *RemediationInProgressException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *RemediationInProgressException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "RemediationInProgressException"
 	}
 	return *e.ErrorCodeOverride
@@ -1408,7 +1408,7 @@ func (e *ResourceConcurrentModificationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceConcurrentModificationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceConcurrentModificationException"
 	}
 	return *e.ErrorCodeOverride
@@ -1462,7 +1462,7 @@ func (e *ResourceInUseException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceInUseException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceInUseException"
 	}
 	return *e.ErrorCodeOverride
@@ -1488,7 +1488,7 @@ func (e *ResourceNotDiscoveredException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotDiscoveredException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotDiscoveredException"
 	}
 	return *e.ErrorCodeOverride
@@ -1514,7 +1514,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -1543,7 +1543,7 @@ func (e *TooManyTagsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TooManyTagsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TooManyTagsException"
 	}
 	return *e.ErrorCodeOverride
@@ -1573,7 +1573,7 @@ func (e *ValidationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ValidationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ValidationException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/connect/types/errors.go b/service/connect/types/errors.go
index f3ae909b9b1..05327d9dade 100644
--- a/service/connect/types/errors.go
+++ b/service/connect/types/errors.go
@@ -26,7 +26,7 @@ func (e *AccessDeniedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AccessDeniedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AccessDeniedException"
 	}
 	return *e.ErrorCodeOverride
@@ -52,7 +52,7 @@ func (e *ContactFlowNotPublishedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ContactFlowNotPublishedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ContactFlowNotPublishedException"
 	}
 	return *e.ErrorCodeOverride
@@ -79,7 +79,7 @@ func (e *ContactNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ContactNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ContactNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -105,7 +105,7 @@ func (e *DestinationNotAllowedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DestinationNotAllowedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DestinationNotAllowedException"
 	}
 	return *e.ErrorCodeOverride
@@ -131,7 +131,7 @@ func (e *DuplicateResourceException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DuplicateResourceException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DuplicateResourceException"
 	}
 	return *e.ErrorCodeOverride
@@ -157,7 +157,7 @@ func (e *IdempotencyException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *IdempotencyException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "IdempotencyException"
 	}
 	return *e.ErrorCodeOverride
@@ -183,7 +183,7 @@ func (e *InternalServiceException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalServiceException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalServiceException"
 	}
 	return *e.ErrorCodeOverride
@@ -211,7 +211,7 @@ func (e *InvalidContactFlowException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidContactFlowException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidContactFlowException"
 	}
 	return *e.ErrorCodeOverride
@@ -239,7 +239,7 @@ func (e *InvalidContactFlowModuleException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidContactFlowModuleException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidContactFlowModuleException"
 	}
 	return *e.ErrorCodeOverride
@@ -265,7 +265,7 @@ func (e *InvalidParameterException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidParameterException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidParameterException"
 	}
 	return *e.ErrorCodeOverride
@@ -291,7 +291,7 @@ func (e *InvalidRequestException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidRequestException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidRequestException"
 	}
 	return *e.ErrorCodeOverride
@@ -317,7 +317,7 @@ func (e *LimitExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *LimitExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "LimitExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -343,7 +343,7 @@ func (e *OutboundContactNotPermittedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *OutboundContactNotPermittedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "OutboundContactNotPermittedException"
 	}
 	return *e.ErrorCodeOverride
@@ -373,7 +373,7 @@ func (e *PropertyValidationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *PropertyValidationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "PropertyValidationException"
 	}
 	return *e.ErrorCodeOverride
@@ -399,7 +399,7 @@ func (e *ResourceConflictException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceConflictException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceConflictException"
 	}
 	return *e.ErrorCodeOverride
@@ -428,7 +428,7 @@ func (e *ResourceInUseException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceInUseException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceInUseException"
 	}
 	return *e.ErrorCodeOverride
@@ -454,7 +454,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -480,7 +480,7 @@ func (e *ResourceNotReadyException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotReadyException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotReadyException"
 	}
 	return *e.ErrorCodeOverride
@@ -506,7 +506,7 @@ func (e *ServiceQuotaExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ServiceQuotaExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ServiceQuotaExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -532,7 +532,7 @@ func (e *ThrottlingException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ThrottlingException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ThrottlingException"
 	}
 	return *e.ErrorCodeOverride
@@ -558,7 +558,7 @@ func (e *UserNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *UserNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "UserNotFoundException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/connectcampaigns/types/errors.go b/service/connectcampaigns/types/errors.go
index 8efe5da0a77..b3d165bd4b9 100644
--- a/service/connectcampaigns/types/errors.go
+++ b/service/connectcampaigns/types/errors.go
@@ -28,7 +28,7 @@ func (e *AccessDeniedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AccessDeniedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AccessDeniedException"
 	}
 	return *e.ErrorCodeOverride
@@ -57,7 +57,7 @@ func (e *ConflictException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ConflictException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ConflictException"
 	}
 	return *e.ErrorCodeOverride
@@ -85,7 +85,7 @@ func (e *InternalServerException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalServerException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalServerException"
 	}
 	return *e.ErrorCodeOverride
@@ -115,7 +115,7 @@ func (e *InvalidCampaignStateException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidCampaignStateException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidCampaignStateException"
 	}
 	return *e.ErrorCodeOverride
@@ -143,7 +143,7 @@ func (e *InvalidStateException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidStateException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidStateException"
 	}
 	return *e.ErrorCodeOverride
@@ -171,7 +171,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -199,7 +199,7 @@ func (e *ServiceQuotaExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ServiceQuotaExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ServiceQuotaExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -227,7 +227,7 @@ func (e *ThrottlingException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ThrottlingException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ThrottlingException"
 	}
 	return *e.ErrorCodeOverride
@@ -255,7 +255,7 @@ func (e *ValidationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ValidationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ValidationException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/connectcases/types/errors.go b/service/connectcases/types/errors.go
index c7fba45ee72..7a56c0a4a08 100644
--- a/service/connectcases/types/errors.go
+++ b/service/connectcases/types/errors.go
@@ -26,7 +26,7 @@ func (e *AccessDeniedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AccessDeniedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AccessDeniedException"
 	}
 	return *e.ErrorCodeOverride
@@ -54,7 +54,7 @@ func (e *ConflictException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ConflictException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ConflictException"
 	}
 	return *e.ErrorCodeOverride
@@ -83,7 +83,7 @@ func (e *InternalServerException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalServerException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalServerException"
 	}
 	return *e.ErrorCodeOverride
@@ -114,7 +114,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -143,7 +143,7 @@ func (e *ServiceQuotaExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ServiceQuotaExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ServiceQuotaExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -169,7 +169,7 @@ func (e *ThrottlingException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ThrottlingException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ThrottlingException"
 	}
 	return *e.ErrorCodeOverride
@@ -195,7 +195,7 @@ func (e *ValidationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ValidationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ValidationException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/connectcontactlens/types/errors.go b/service/connectcontactlens/types/errors.go
index 29f95d7151c..9725cc07b1f 100644
--- a/service/connectcontactlens/types/errors.go
+++ b/service/connectcontactlens/types/errors.go
@@ -26,7 +26,7 @@ func (e *AccessDeniedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AccessDeniedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AccessDeniedException"
 	}
 	return *e.ErrorCodeOverride
@@ -52,7 +52,7 @@ func (e *InternalServiceException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalServiceException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalServiceException"
 	}
 	return *e.ErrorCodeOverride
@@ -78,7 +78,7 @@ func (e *InvalidRequestException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidRequestException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidRequestException"
 	}
 	return *e.ErrorCodeOverride
@@ -104,7 +104,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -130,7 +130,7 @@ func (e *ThrottlingException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ThrottlingException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ThrottlingException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/connectparticipant/types/errors.go b/service/connectparticipant/types/errors.go
index 8443760ab27..2f1b381d4ad 100644
--- a/service/connectparticipant/types/errors.go
+++ b/service/connectparticipant/types/errors.go
@@ -26,7 +26,7 @@ func (e *AccessDeniedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AccessDeniedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AccessDeniedException"
 	}
 	return *e.ErrorCodeOverride
@@ -52,7 +52,7 @@ func (e *ConflictException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ConflictException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ConflictException"
 	}
 	return *e.ErrorCodeOverride
@@ -79,7 +79,7 @@ func (e *InternalServerException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalServerException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalServerException"
 	}
 	return *e.ErrorCodeOverride
@@ -105,7 +105,7 @@ func (e *ServiceQuotaExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ServiceQuotaExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ServiceQuotaExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -131,7 +131,7 @@ func (e *ThrottlingException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ThrottlingException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ThrottlingException"
 	}
 	return *e.ErrorCodeOverride
@@ -157,7 +157,7 @@ func (e *ValidationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ValidationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ValidationException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/controltower/types/errors.go b/service/controltower/types/errors.go
index f229bf87e3d..4002980011b 100644
--- a/service/controltower/types/errors.go
+++ b/service/controltower/types/errors.go
@@ -26,7 +26,7 @@ func (e *AccessDeniedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AccessDeniedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AccessDeniedException"
 	}
 	return *e.ErrorCodeOverride
@@ -52,7 +52,7 @@ func (e *ConflictException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ConflictException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ConflictException"
 	}
 	return *e.ErrorCodeOverride
@@ -78,7 +78,7 @@ func (e *InternalServerException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalServerException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalServerException"
 	}
 	return *e.ErrorCodeOverride
@@ -104,7 +104,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -131,7 +131,7 @@ func (e *ServiceQuotaExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ServiceQuotaExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ServiceQuotaExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -161,7 +161,7 @@ func (e *ThrottlingException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ThrottlingException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ThrottlingException"
 	}
 	return *e.ErrorCodeOverride
@@ -187,7 +187,7 @@ func (e *ValidationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ValidationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ValidationException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/costandusagereportservice/types/errors.go b/service/costandusagereportservice/types/errors.go
index 53828c54fdc..671e93bddde 100644
--- a/service/costandusagereportservice/types/errors.go
+++ b/service/costandusagereportservice/types/errors.go
@@ -27,7 +27,7 @@ func (e *DuplicateReportNameException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DuplicateReportNameException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DuplicateReportNameException"
 	}
 	return *e.ErrorCodeOverride
@@ -54,7 +54,7 @@ func (e *InternalErrorException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalErrorException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalErrorException"
 	}
 	return *e.ErrorCodeOverride
@@ -81,7 +81,7 @@ func (e *ReportLimitReachedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ReportLimitReachedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ReportLimitReachedException"
 	}
 	return *e.ErrorCodeOverride
@@ -107,7 +107,7 @@ func (e *ValidationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ValidationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ValidationException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/costexplorer/types/errors.go b/service/costexplorer/types/errors.go
index 86f96d86dd3..369a77ef173 100644
--- a/service/costexplorer/types/errors.go
+++ b/service/costexplorer/types/errors.go
@@ -26,7 +26,7 @@ func (e *BillExpirationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *BillExpirationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "BillExpirationException"
 	}
 	return *e.ErrorCodeOverride
@@ -52,7 +52,7 @@ func (e *DataUnavailableException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DataUnavailableException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DataUnavailableException"
 	}
 	return *e.ErrorCodeOverride
@@ -78,7 +78,7 @@ func (e *GenerationExistsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *GenerationExistsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "GenerationExistsException"
 	}
 	return *e.ErrorCodeOverride
@@ -104,7 +104,7 @@ func (e *InvalidNextTokenException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidNextTokenException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidNextTokenException"
 	}
 	return *e.ErrorCodeOverride
@@ -130,7 +130,7 @@ func (e *LimitExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *LimitExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "LimitExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -157,7 +157,7 @@ func (e *RequestChangedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *RequestChangedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "RequestChangedException"
 	}
 	return *e.ErrorCodeOverride
@@ -185,7 +185,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -212,7 +212,7 @@ func (e *ServiceQuotaExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ServiceQuotaExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ServiceQuotaExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -241,7 +241,7 @@ func (e *TooManyTagsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TooManyTagsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TooManyTagsException"
 	}
 	return *e.ErrorCodeOverride
@@ -267,7 +267,7 @@ func (e *UnknownMonitorException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *UnknownMonitorException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "UnknownMonitorException"
 	}
 	return *e.ErrorCodeOverride
@@ -293,7 +293,7 @@ func (e *UnknownSubscriptionException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *UnknownSubscriptionException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "UnknownSubscriptionException"
 	}
 	return *e.ErrorCodeOverride
@@ -321,7 +321,7 @@ func (e *UnresolvableUsageUnitException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *UnresolvableUsageUnitException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "UnresolvableUsageUnitException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/customerprofiles/types/errors.go b/service/customerprofiles/types/errors.go
index 9b3dbf12463..4957998b3c9 100644
--- a/service/customerprofiles/types/errors.go
+++ b/service/customerprofiles/types/errors.go
@@ -26,7 +26,7 @@ func (e *AccessDeniedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AccessDeniedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AccessDeniedException"
 	}
 	return *e.ErrorCodeOverride
@@ -52,7 +52,7 @@ func (e *BadRequestException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *BadRequestException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "BadRequestException"
 	}
 	return *e.ErrorCodeOverride
@@ -78,7 +78,7 @@ func (e *InternalServerException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalServerException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalServerException"
 	}
 	return *e.ErrorCodeOverride
@@ -104,7 +104,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -130,7 +130,7 @@ func (e *ThrottlingException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ThrottlingException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ThrottlingException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/databasemigrationservice/types/errors.go b/service/databasemigrationservice/types/errors.go
index e87091f7ff3..baa08e5a610 100644
--- a/service/databasemigrationservice/types/errors.go
+++ b/service/databasemigrationservice/types/errors.go
@@ -27,7 +27,7 @@ func (e *AccessDeniedFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AccessDeniedFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AccessDeniedFault"
 	}
 	return *e.ErrorCodeOverride
@@ -53,7 +53,7 @@ func (e *CollectorNotFoundFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *CollectorNotFoundFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "CollectorNotFoundFault"
 	}
 	return *e.ErrorCodeOverride
@@ -79,7 +79,7 @@ func (e *InsufficientResourceCapacityFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InsufficientResourceCapacityFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InsufficientResourceCapacityFault"
 	}
 	return *e.ErrorCodeOverride
@@ -105,7 +105,7 @@ func (e *InvalidCertificateFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidCertificateFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidCertificateFault"
 	}
 	return *e.ErrorCodeOverride
@@ -131,7 +131,7 @@ func (e *InvalidOperationFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidOperationFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidOperationFault"
 	}
 	return *e.ErrorCodeOverride
@@ -158,7 +158,7 @@ func (e *InvalidResourceStateFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidResourceStateFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidResourceStateFault"
 	}
 	return *e.ErrorCodeOverride
@@ -184,7 +184,7 @@ func (e *InvalidSubnet) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidSubnet) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidSubnet"
 	}
 	return *e.ErrorCodeOverride
@@ -211,7 +211,7 @@ func (e *KMSAccessDeniedFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *KMSAccessDeniedFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "KMSAccessDeniedFault"
 	}
 	return *e.ErrorCodeOverride
@@ -237,7 +237,7 @@ func (e *KMSDisabledFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *KMSDisabledFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "KMSDisabledFault"
 	}
 	return *e.ErrorCodeOverride
@@ -263,7 +263,7 @@ func (e *KMSFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *KMSFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "KMSFault"
 	}
 	return *e.ErrorCodeOverride
@@ -289,7 +289,7 @@ func (e *KMSInvalidStateFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *KMSInvalidStateFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "KMSInvalidStateFault"
 	}
 	return *e.ErrorCodeOverride
@@ -315,7 +315,7 @@ func (e *KMSKeyNotAccessibleFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *KMSKeyNotAccessibleFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "KMSKeyNotAccessibleFault"
 	}
 	return *e.ErrorCodeOverride
@@ -341,7 +341,7 @@ func (e *KMSNotFoundFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *KMSNotFoundFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "KMSNotFoundFault"
 	}
 	return *e.ErrorCodeOverride
@@ -367,7 +367,7 @@ func (e *KMSThrottlingFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *KMSThrottlingFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "KMSThrottlingFault"
 	}
 	return *e.ErrorCodeOverride
@@ -394,7 +394,7 @@ func (e *ReplicationSubnetGroupDoesNotCoverEnoughAZs) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ReplicationSubnetGroupDoesNotCoverEnoughAZs) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ReplicationSubnetGroupDoesNotCoverEnoughAZs"
 	}
 	return *e.ErrorCodeOverride
@@ -424,7 +424,7 @@ func (e *ResourceAlreadyExistsFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceAlreadyExistsFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceAlreadyExistsFault"
 	}
 	return *e.ErrorCodeOverride
@@ -450,7 +450,7 @@ func (e *ResourceNotFoundFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundFault"
 	}
 	return *e.ErrorCodeOverride
@@ -476,7 +476,7 @@ func (e *ResourceQuotaExceededFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceQuotaExceededFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceQuotaExceededFault"
 	}
 	return *e.ErrorCodeOverride
@@ -502,7 +502,7 @@ func (e *S3AccessDeniedFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *S3AccessDeniedFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "S3AccessDeniedFault"
 	}
 	return *e.ErrorCodeOverride
@@ -528,7 +528,7 @@ func (e *S3ResourceNotFoundFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *S3ResourceNotFoundFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "S3ResourceNotFoundFault"
 	}
 	return *e.ErrorCodeOverride
@@ -554,7 +554,7 @@ func (e *SNSInvalidTopicFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *SNSInvalidTopicFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "SNSInvalidTopicFault"
 	}
 	return *e.ErrorCodeOverride
@@ -580,7 +580,7 @@ func (e *SNSNoAuthorizationFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *SNSNoAuthorizationFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "SNSNoAuthorizationFault"
 	}
 	return *e.ErrorCodeOverride
@@ -606,7 +606,7 @@ func (e *StorageQuotaExceededFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *StorageQuotaExceededFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "StorageQuotaExceededFault"
 	}
 	return *e.ErrorCodeOverride
@@ -632,7 +632,7 @@ func (e *SubnetAlreadyInUse) ErrorMessage() string {
 	return *e.Message
 }
 func (e *SubnetAlreadyInUse) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "SubnetAlreadyInUse"
 	}
 	return *e.ErrorCodeOverride
@@ -658,7 +658,7 @@ func (e *UpgradeDependencyFailureFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *UpgradeDependencyFailureFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "UpgradeDependencyFailureFault"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/databrew/types/errors.go b/service/databrew/types/errors.go
index 1eea8830144..0d77e39ff3c 100644
--- a/service/databrew/types/errors.go
+++ b/service/databrew/types/errors.go
@@ -26,7 +26,7 @@ func (e *AccessDeniedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AccessDeniedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AccessDeniedException"
 	}
 	return *e.ErrorCodeOverride
@@ -52,7 +52,7 @@ func (e *ConflictException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ConflictException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ConflictException"
 	}
 	return *e.ErrorCodeOverride
@@ -78,7 +78,7 @@ func (e *InternalServerException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalServerException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalServerException"
 	}
 	return *e.ErrorCodeOverride
@@ -104,7 +104,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -130,7 +130,7 @@ func (e *ServiceQuotaExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ServiceQuotaExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ServiceQuotaExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -156,7 +156,7 @@ func (e *ValidationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ValidationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ValidationException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/dataexchange/types/errors.go b/service/dataexchange/types/errors.go
index 7fd9793aa60..26ade88fe6c 100644
--- a/service/dataexchange/types/errors.go
+++ b/service/dataexchange/types/errors.go
@@ -26,7 +26,7 @@ func (e *AccessDeniedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AccessDeniedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AccessDeniedException"
 	}
 	return *e.ErrorCodeOverride
@@ -56,7 +56,7 @@ func (e *ConflictException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ConflictException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ConflictException"
 	}
 	return *e.ErrorCodeOverride
@@ -82,7 +82,7 @@ func (e *InternalServerException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalServerException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalServerException"
 	}
 	return *e.ErrorCodeOverride
@@ -111,7 +111,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -140,7 +140,7 @@ func (e *ServiceLimitExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ServiceLimitExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ServiceLimitExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -166,7 +166,7 @@ func (e *ThrottlingException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ThrottlingException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ThrottlingException"
 	}
 	return *e.ErrorCodeOverride
@@ -194,7 +194,7 @@ func (e *ValidationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ValidationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ValidationException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/datapipeline/types/errors.go b/service/datapipeline/types/errors.go
index ab16b2f9dba..470097bb8e1 100644
--- a/service/datapipeline/types/errors.go
+++ b/service/datapipeline/types/errors.go
@@ -26,7 +26,7 @@ func (e *InternalServiceError) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalServiceError) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalServiceError"
 	}
 	return *e.ErrorCodeOverride
@@ -54,7 +54,7 @@ func (e *InvalidRequestException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidRequestException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidRequestException"
 	}
 	return *e.ErrorCodeOverride
@@ -80,7 +80,7 @@ func (e *PipelineDeletedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *PipelineDeletedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "PipelineDeletedException"
 	}
 	return *e.ErrorCodeOverride
@@ -107,7 +107,7 @@ func (e *PipelineNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *PipelineNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "PipelineNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -133,7 +133,7 @@ func (e *TaskNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TaskNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TaskNotFoundException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/datasync/types/errors.go b/service/datasync/types/errors.go
index 164f649c63e..0648214eccb 100644
--- a/service/datasync/types/errors.go
+++ b/service/datasync/types/errors.go
@@ -28,7 +28,7 @@ func (e *InternalException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalException"
 	}
 	return *e.ErrorCodeOverride
@@ -57,7 +57,7 @@ func (e *InvalidRequestException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidRequestException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidRequestException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/dax/types/errors.go b/service/dax/types/errors.go
index 45cb130615a..6c56304be02 100644
--- a/service/dax/types/errors.go
+++ b/service/dax/types/errors.go
@@ -26,7 +26,7 @@ func (e *ClusterAlreadyExistsFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ClusterAlreadyExistsFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ClusterAlreadyExistsFault"
 	}
 	return *e.ErrorCodeOverride
@@ -52,7 +52,7 @@ func (e *ClusterNotFoundFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ClusterNotFoundFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ClusterNotFoundFault"
 	}
 	return *e.ErrorCodeOverride
@@ -79,7 +79,7 @@ func (e *ClusterQuotaForCustomerExceededFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ClusterQuotaForCustomerExceededFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ClusterQuotaForCustomerExceededFault"
 	}
 	return *e.ErrorCodeOverride
@@ -108,7 +108,7 @@ func (e *InsufficientClusterCapacityFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InsufficientClusterCapacityFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InsufficientClusterCapacityFault"
 	}
 	return *e.ErrorCodeOverride
@@ -134,7 +134,7 @@ func (e *InvalidARNFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidARNFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidARNFault"
 	}
 	return *e.ErrorCodeOverride
@@ -160,7 +160,7 @@ func (e *InvalidClusterStateFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidClusterStateFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidClusterStateFault"
 	}
 	return *e.ErrorCodeOverride
@@ -186,7 +186,7 @@ func (e *InvalidParameterCombinationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidParameterCombinationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidParameterCombinationException"
 	}
 	return *e.ErrorCodeOverride
@@ -214,7 +214,7 @@ func (e *InvalidParameterGroupStateFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidParameterGroupStateFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidParameterGroupStateFault"
 	}
 	return *e.ErrorCodeOverride
@@ -240,7 +240,7 @@ func (e *InvalidParameterValueException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidParameterValueException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidParameterValueException"
 	}
 	return *e.ErrorCodeOverride
@@ -266,7 +266,7 @@ func (e *InvalidSubnet) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidSubnet) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidSubnet"
 	}
 	return *e.ErrorCodeOverride
@@ -292,7 +292,7 @@ func (e *InvalidVPCNetworkStateFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidVPCNetworkStateFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidVPCNetworkStateFault"
 	}
 	return *e.ErrorCodeOverride
@@ -318,7 +318,7 @@ func (e *NodeNotFoundFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *NodeNotFoundFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "NodeNotFoundFault"
 	}
 	return *e.ErrorCodeOverride
@@ -344,7 +344,7 @@ func (e *NodeQuotaForClusterExceededFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *NodeQuotaForClusterExceededFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "NodeQuotaForClusterExceededFault"
 	}
 	return *e.ErrorCodeOverride
@@ -370,7 +370,7 @@ func (e *NodeQuotaForCustomerExceededFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *NodeQuotaForCustomerExceededFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "NodeQuotaForCustomerExceededFault"
 	}
 	return *e.ErrorCodeOverride
@@ -396,7 +396,7 @@ func (e *ParameterGroupAlreadyExistsFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ParameterGroupAlreadyExistsFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ParameterGroupAlreadyExistsFault"
 	}
 	return *e.ErrorCodeOverride
@@ -422,7 +422,7 @@ func (e *ParameterGroupNotFoundFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ParameterGroupNotFoundFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ParameterGroupNotFoundFault"
 	}
 	return *e.ErrorCodeOverride
@@ -448,7 +448,7 @@ func (e *ParameterGroupQuotaExceededFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ParameterGroupQuotaExceededFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ParameterGroupQuotaExceededFault"
 	}
 	return *e.ErrorCodeOverride
@@ -474,7 +474,7 @@ func (e *ServiceLinkedRoleNotFoundFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ServiceLinkedRoleNotFoundFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ServiceLinkedRoleNotFoundFault"
 	}
 	return *e.ErrorCodeOverride
@@ -502,7 +502,7 @@ func (e *ServiceQuotaExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ServiceQuotaExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ServiceQuotaExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -528,7 +528,7 @@ func (e *SubnetGroupAlreadyExistsFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *SubnetGroupAlreadyExistsFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "SubnetGroupAlreadyExistsFault"
 	}
 	return *e.ErrorCodeOverride
@@ -554,7 +554,7 @@ func (e *SubnetGroupInUseFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *SubnetGroupInUseFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "SubnetGroupInUseFault"
 	}
 	return *e.ErrorCodeOverride
@@ -580,7 +580,7 @@ func (e *SubnetGroupNotFoundFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *SubnetGroupNotFoundFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "SubnetGroupNotFoundFault"
 	}
 	return *e.ErrorCodeOverride
@@ -607,7 +607,7 @@ func (e *SubnetGroupQuotaExceededFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *SubnetGroupQuotaExceededFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "SubnetGroupQuotaExceededFault"
 	}
 	return *e.ErrorCodeOverride
@@ -633,7 +633,7 @@ func (e *SubnetInUse) ErrorMessage() string {
 	return *e.Message
 }
 func (e *SubnetInUse) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "SubnetInUse"
 	}
 	return *e.ErrorCodeOverride
@@ -660,7 +660,7 @@ func (e *SubnetQuotaExceededFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *SubnetQuotaExceededFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "SubnetQuotaExceededFault"
 	}
 	return *e.ErrorCodeOverride
@@ -686,7 +686,7 @@ func (e *TagNotFoundFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TagNotFoundFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TagNotFoundFault"
 	}
 	return *e.ErrorCodeOverride
@@ -712,7 +712,7 @@ func (e *TagQuotaPerResourceExceeded) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TagQuotaPerResourceExceeded) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TagQuotaPerResourceExceeded"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/detective/types/errors.go b/service/detective/types/errors.go
index b1db290352c..54f72fd4e81 100644
--- a/service/detective/types/errors.go
+++ b/service/detective/types/errors.go
@@ -32,7 +32,7 @@ func (e *AccessDeniedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AccessDeniedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AccessDeniedException"
 	}
 	return *e.ErrorCodeOverride
@@ -58,7 +58,7 @@ func (e *ConflictException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ConflictException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ConflictException"
 	}
 	return *e.ErrorCodeOverride
@@ -84,7 +84,7 @@ func (e *InternalServerException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalServerException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalServerException"
 	}
 	return *e.ErrorCodeOverride
@@ -110,7 +110,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -150,7 +150,7 @@ func (e *ServiceQuotaExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ServiceQuotaExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ServiceQuotaExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -177,7 +177,7 @@ func (e *TooManyRequestsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TooManyRequestsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TooManyRequestsException"
 	}
 	return *e.ErrorCodeOverride
@@ -206,7 +206,7 @@ func (e *ValidationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ValidationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ValidationException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/devicefarm/types/errors.go b/service/devicefarm/types/errors.go
index f6fea694960..f287a08685a 100644
--- a/service/devicefarm/types/errors.go
+++ b/service/devicefarm/types/errors.go
@@ -26,7 +26,7 @@ func (e *ArgumentException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ArgumentException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ArgumentException"
 	}
 	return *e.ErrorCodeOverride
@@ -52,7 +52,7 @@ func (e *CannotDeleteException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *CannotDeleteException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "CannotDeleteException"
 	}
 	return *e.ErrorCodeOverride
@@ -78,7 +78,7 @@ func (e *IdempotencyException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *IdempotencyException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "IdempotencyException"
 	}
 	return *e.ErrorCodeOverride
@@ -106,7 +106,7 @@ func (e *InternalServiceException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalServiceException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalServiceException"
 	}
 	return *e.ErrorCodeOverride
@@ -133,7 +133,7 @@ func (e *InvalidOperationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidOperationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidOperationException"
 	}
 	return *e.ErrorCodeOverride
@@ -159,7 +159,7 @@ func (e *LimitExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *LimitExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "LimitExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -186,7 +186,7 @@ func (e *NotEligibleException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *NotEligibleException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "NotEligibleException"
 	}
 	return *e.ErrorCodeOverride
@@ -212,7 +212,7 @@ func (e *NotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *NotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "NotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -238,7 +238,7 @@ func (e *ServiceAccountException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ServiceAccountException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ServiceAccountException"
 	}
 	return *e.ErrorCodeOverride
@@ -266,7 +266,7 @@ func (e *TagOperationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TagOperationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TagOperationException"
 	}
 	return *e.ErrorCodeOverride
@@ -295,7 +295,7 @@ func (e *TagPolicyException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TagPolicyException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TagPolicyException"
 	}
 	return *e.ErrorCodeOverride
@@ -324,7 +324,7 @@ func (e *TooManyTagsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TooManyTagsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TooManyTagsException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/devopsguru/types/errors.go b/service/devopsguru/types/errors.go
index 5ee5c6a22b1..711ec37acf9 100644
--- a/service/devopsguru/types/errors.go
+++ b/service/devopsguru/types/errors.go
@@ -30,7 +30,7 @@ func (e *AccessDeniedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AccessDeniedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AccessDeniedException"
 	}
 	return *e.ErrorCodeOverride
@@ -59,7 +59,7 @@ func (e *ConflictException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ConflictException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ConflictException"
 	}
 	return *e.ErrorCodeOverride
@@ -87,7 +87,7 @@ func (e *InternalServerException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalServerException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalServerException"
 	}
 	return *e.ErrorCodeOverride
@@ -116,7 +116,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -142,7 +142,7 @@ func (e *ServiceQuotaExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ServiceQuotaExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ServiceQuotaExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -172,7 +172,7 @@ func (e *ThrottlingException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ThrottlingException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ThrottlingException"
 	}
 	return *e.ErrorCodeOverride
@@ -202,7 +202,7 @@ func (e *ValidationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ValidationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ValidationException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/directconnect/types/errors.go b/service/directconnect/types/errors.go
index 30017fba982..5df47bbd89f 100644
--- a/service/directconnect/types/errors.go
+++ b/service/directconnect/types/errors.go
@@ -26,7 +26,7 @@ func (e *DirectConnectClientException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DirectConnectClientException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DirectConnectClientException"
 	}
 	return *e.ErrorCodeOverride
@@ -52,7 +52,7 @@ func (e *DirectConnectServerException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DirectConnectServerException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DirectConnectServerException"
 	}
 	return *e.ErrorCodeOverride
@@ -78,7 +78,7 @@ func (e *DuplicateTagKeysException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DuplicateTagKeysException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DuplicateTagKeysException"
 	}
 	return *e.ErrorCodeOverride
@@ -104,7 +104,7 @@ func (e *TooManyTagsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TooManyTagsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TooManyTagsException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/directoryservice/types/errors.go b/service/directoryservice/types/errors.go
index 82fab0e6a2b..9ce2852bacd 100644
--- a/service/directoryservice/types/errors.go
+++ b/service/directoryservice/types/errors.go
@@ -28,7 +28,7 @@ func (e *AccessDeniedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AccessDeniedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AccessDeniedException"
 	}
 	return *e.ErrorCodeOverride
@@ -56,7 +56,7 @@ func (e *AuthenticationFailedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AuthenticationFailedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AuthenticationFailedException"
 	}
 	return *e.ErrorCodeOverride
@@ -84,7 +84,7 @@ func (e *CertificateAlreadyExistsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *CertificateAlreadyExistsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "CertificateAlreadyExistsException"
 	}
 	return *e.ErrorCodeOverride
@@ -113,7 +113,7 @@ func (e *CertificateDoesNotExistException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *CertificateDoesNotExistException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "CertificateDoesNotExistException"
 	}
 	return *e.ErrorCodeOverride
@@ -142,7 +142,7 @@ func (e *CertificateInUseException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *CertificateInUseException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "CertificateInUseException"
 	}
 	return *e.ErrorCodeOverride
@@ -171,7 +171,7 @@ func (e *CertificateLimitExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *CertificateLimitExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "CertificateLimitExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -199,7 +199,7 @@ func (e *ClientException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ClientException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ClientException"
 	}
 	return *e.ErrorCodeOverride
@@ -228,7 +228,7 @@ func (e *DirectoryAlreadyInRegionException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DirectoryAlreadyInRegionException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DirectoryAlreadyInRegionException"
 	}
 	return *e.ErrorCodeOverride
@@ -257,7 +257,7 @@ func (e *DirectoryAlreadySharedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DirectoryAlreadySharedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DirectoryAlreadySharedException"
 	}
 	return *e.ErrorCodeOverride
@@ -285,7 +285,7 @@ func (e *DirectoryDoesNotExistException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DirectoryDoesNotExistException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DirectoryDoesNotExistException"
 	}
 	return *e.ErrorCodeOverride
@@ -313,7 +313,7 @@ func (e *DirectoryInDesiredStateException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DirectoryInDesiredStateException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DirectoryInDesiredStateException"
 	}
 	return *e.ErrorCodeOverride
@@ -343,7 +343,7 @@ func (e *DirectoryLimitExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DirectoryLimitExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DirectoryLimitExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -372,7 +372,7 @@ func (e *DirectoryNotSharedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DirectoryNotSharedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DirectoryNotSharedException"
 	}
 	return *e.ErrorCodeOverride
@@ -400,7 +400,7 @@ func (e *DirectoryUnavailableException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DirectoryUnavailableException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DirectoryUnavailableException"
 	}
 	return *e.ErrorCodeOverride
@@ -429,7 +429,7 @@ func (e *DomainControllerLimitExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DomainControllerLimitExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DomainControllerLimitExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -459,7 +459,7 @@ func (e *EntityAlreadyExistsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *EntityAlreadyExistsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "EntityAlreadyExistsException"
 	}
 	return *e.ErrorCodeOverride
@@ -487,7 +487,7 @@ func (e *EntityDoesNotExistException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *EntityDoesNotExistException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "EntityDoesNotExistException"
 	}
 	return *e.ErrorCodeOverride
@@ -515,7 +515,7 @@ func (e *IncompatibleSettingsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *IncompatibleSettingsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "IncompatibleSettingsException"
 	}
 	return *e.ErrorCodeOverride
@@ -543,7 +543,7 @@ func (e *InsufficientPermissionsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InsufficientPermissionsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InsufficientPermissionsException"
 	}
 	return *e.ErrorCodeOverride
@@ -571,7 +571,7 @@ func (e *InvalidCertificateException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidCertificateException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidCertificateException"
 	}
 	return *e.ErrorCodeOverride
@@ -599,7 +599,7 @@ func (e *InvalidClientAuthStatusException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidClientAuthStatusException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidClientAuthStatusException"
 	}
 	return *e.ErrorCodeOverride
@@ -628,7 +628,7 @@ func (e *InvalidLDAPSStatusException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidLDAPSStatusException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidLDAPSStatusException"
 	}
 	return *e.ErrorCodeOverride
@@ -656,7 +656,7 @@ func (e *InvalidNextTokenException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidNextTokenException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidNextTokenException"
 	}
 	return *e.ErrorCodeOverride
@@ -684,7 +684,7 @@ func (e *InvalidParameterException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidParameterException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidParameterException"
 	}
 	return *e.ErrorCodeOverride
@@ -713,7 +713,7 @@ func (e *InvalidPasswordException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidPasswordException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidPasswordException"
 	}
 	return *e.ErrorCodeOverride
@@ -741,7 +741,7 @@ func (e *InvalidTargetException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidTargetException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidTargetException"
 	}
 	return *e.ErrorCodeOverride
@@ -770,7 +770,7 @@ func (e *IpRouteLimitExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *IpRouteLimitExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "IpRouteLimitExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -799,7 +799,7 @@ func (e *NoAvailableCertificateException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *NoAvailableCertificateException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "NoAvailableCertificateException"
 	}
 	return *e.ErrorCodeOverride
@@ -828,7 +828,7 @@ func (e *OrganizationsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *OrganizationsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "OrganizationsException"
 	}
 	return *e.ErrorCodeOverride
@@ -857,7 +857,7 @@ func (e *RegionLimitExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *RegionLimitExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "RegionLimitExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -885,7 +885,7 @@ func (e *ServiceException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ServiceException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ServiceException"
 	}
 	return *e.ErrorCodeOverride
@@ -914,7 +914,7 @@ func (e *ShareLimitExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ShareLimitExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ShareLimitExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -944,7 +944,7 @@ func (e *SnapshotLimitExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *SnapshotLimitExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "SnapshotLimitExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -972,7 +972,7 @@ func (e *TagLimitExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TagLimitExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TagLimitExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -1000,7 +1000,7 @@ func (e *UnsupportedOperationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *UnsupportedOperationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "UnsupportedOperationException"
 	}
 	return *e.ErrorCodeOverride
@@ -1028,7 +1028,7 @@ func (e *UnsupportedSettingsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *UnsupportedSettingsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "UnsupportedSettingsException"
 	}
 	return *e.ErrorCodeOverride
@@ -1056,7 +1056,7 @@ func (e *UserDoesNotExistException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *UserDoesNotExistException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "UserDoesNotExistException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/dlm/types/errors.go b/service/dlm/types/errors.go
index 32254e05dfa..5a0ec4c99aa 100644
--- a/service/dlm/types/errors.go
+++ b/service/dlm/types/errors.go
@@ -28,7 +28,7 @@ func (e *InternalServerException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalServerException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalServerException"
 	}
 	return *e.ErrorCodeOverride
@@ -59,7 +59,7 @@ func (e *InvalidRequestException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidRequestException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidRequestException"
 	}
 	return *e.ErrorCodeOverride
@@ -88,7 +88,7 @@ func (e *LimitExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *LimitExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "LimitExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -118,7 +118,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/docdb/types/errors.go b/service/docdb/types/errors.go
index 0770eac3d9f..5c71abb75e9 100644
--- a/service/docdb/types/errors.go
+++ b/service/docdb/types/errors.go
@@ -28,7 +28,7 @@ func (e *AuthorizationNotFoundFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AuthorizationNotFoundFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AuthorizationNotFound"
 	}
 	return *e.ErrorCodeOverride
@@ -54,7 +54,7 @@ func (e *CertificateNotFoundFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *CertificateNotFoundFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "CertificateNotFound"
 	}
 	return *e.ErrorCodeOverride
@@ -80,7 +80,7 @@ func (e *DBClusterAlreadyExistsFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DBClusterAlreadyExistsFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DBClusterAlreadyExistsFault"
 	}
 	return *e.ErrorCodeOverride
@@ -106,7 +106,7 @@ func (e *DBClusterNotFoundFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DBClusterNotFoundFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DBClusterNotFoundFault"
 	}
 	return *e.ErrorCodeOverride
@@ -133,7 +133,7 @@ func (e *DBClusterParameterGroupNotFoundFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DBClusterParameterGroupNotFoundFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DBClusterParameterGroupNotFound"
 	}
 	return *e.ErrorCodeOverride
@@ -162,7 +162,7 @@ func (e *DBClusterQuotaExceededFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DBClusterQuotaExceededFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DBClusterQuotaExceededFault"
 	}
 	return *e.ErrorCodeOverride
@@ -188,7 +188,7 @@ func (e *DBClusterSnapshotAlreadyExistsFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DBClusterSnapshotAlreadyExistsFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DBClusterSnapshotAlreadyExistsFault"
 	}
 	return *e.ErrorCodeOverride
@@ -216,7 +216,7 @@ func (e *DBClusterSnapshotNotFoundFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DBClusterSnapshotNotFoundFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DBClusterSnapshotNotFoundFault"
 	}
 	return *e.ErrorCodeOverride
@@ -242,7 +242,7 @@ func (e *DBInstanceAlreadyExistsFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DBInstanceAlreadyExistsFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DBInstanceAlreadyExists"
 	}
 	return *e.ErrorCodeOverride
@@ -268,7 +268,7 @@ func (e *DBInstanceNotFoundFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DBInstanceNotFoundFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DBInstanceNotFound"
 	}
 	return *e.ErrorCodeOverride
@@ -294,7 +294,7 @@ func (e *DBParameterGroupAlreadyExistsFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DBParameterGroupAlreadyExistsFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DBParameterGroupAlreadyExists"
 	}
 	return *e.ErrorCodeOverride
@@ -322,7 +322,7 @@ func (e *DBParameterGroupNotFoundFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DBParameterGroupNotFoundFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DBParameterGroupNotFound"
 	}
 	return *e.ErrorCodeOverride
@@ -348,7 +348,7 @@ func (e *DBParameterGroupQuotaExceededFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DBParameterGroupQuotaExceededFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DBParameterGroupQuotaExceeded"
 	}
 	return *e.ErrorCodeOverride
@@ -376,7 +376,7 @@ func (e *DBSecurityGroupNotFoundFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DBSecurityGroupNotFoundFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DBSecurityGroupNotFound"
 	}
 	return *e.ErrorCodeOverride
@@ -402,7 +402,7 @@ func (e *DBSnapshotAlreadyExistsFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DBSnapshotAlreadyExistsFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DBSnapshotAlreadyExists"
 	}
 	return *e.ErrorCodeOverride
@@ -428,7 +428,7 @@ func (e *DBSnapshotNotFoundFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DBSnapshotNotFoundFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DBSnapshotNotFound"
 	}
 	return *e.ErrorCodeOverride
@@ -454,7 +454,7 @@ func (e *DBSubnetGroupAlreadyExistsFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DBSubnetGroupAlreadyExistsFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DBSubnetGroupAlreadyExists"
 	}
 	return *e.ErrorCodeOverride
@@ -481,7 +481,7 @@ func (e *DBSubnetGroupDoesNotCoverEnoughAZs) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DBSubnetGroupDoesNotCoverEnoughAZs) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DBSubnetGroupDoesNotCoverEnoughAZs"
 	}
 	return *e.ErrorCodeOverride
@@ -509,7 +509,7 @@ func (e *DBSubnetGroupNotFoundFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DBSubnetGroupNotFoundFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DBSubnetGroupNotFoundFault"
 	}
 	return *e.ErrorCodeOverride
@@ -535,7 +535,7 @@ func (e *DBSubnetGroupQuotaExceededFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DBSubnetGroupQuotaExceededFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DBSubnetGroupQuotaExceeded"
 	}
 	return *e.ErrorCodeOverride
@@ -562,7 +562,7 @@ func (e *DBSubnetQuotaExceededFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DBSubnetQuotaExceededFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DBSubnetQuotaExceededFault"
 	}
 	return *e.ErrorCodeOverride
@@ -588,7 +588,7 @@ func (e *DBUpgradeDependencyFailureFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DBUpgradeDependencyFailureFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DBUpgradeDependencyFailure"
 	}
 	return *e.ErrorCodeOverride
@@ -614,7 +614,7 @@ func (e *EventSubscriptionQuotaExceededFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *EventSubscriptionQuotaExceededFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "EventSubscriptionQuotaExceeded"
 	}
 	return *e.ErrorCodeOverride
@@ -643,7 +643,7 @@ func (e *GlobalClusterAlreadyExistsFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *GlobalClusterAlreadyExistsFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "GlobalClusterAlreadyExistsFault"
 	}
 	return *e.ErrorCodeOverride
@@ -669,7 +669,7 @@ func (e *GlobalClusterNotFoundFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *GlobalClusterNotFoundFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "GlobalClusterNotFoundFault"
 	}
 	return *e.ErrorCodeOverride
@@ -696,7 +696,7 @@ func (e *GlobalClusterQuotaExceededFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *GlobalClusterQuotaExceededFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "GlobalClusterQuotaExceededFault"
 	}
 	return *e.ErrorCodeOverride
@@ -722,7 +722,7 @@ func (e *InstanceQuotaExceededFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InstanceQuotaExceededFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InstanceQuotaExceeded"
 	}
 	return *e.ErrorCodeOverride
@@ -748,7 +748,7 @@ func (e *InsufficientDBClusterCapacityFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InsufficientDBClusterCapacityFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InsufficientDBClusterCapacityFault"
 	}
 	return *e.ErrorCodeOverride
@@ -776,7 +776,7 @@ func (e *InsufficientDBInstanceCapacityFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InsufficientDBInstanceCapacityFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InsufficientDBInstanceCapacity"
 	}
 	return *e.ErrorCodeOverride
@@ -806,7 +806,7 @@ func (e *InsufficientStorageClusterCapacityFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InsufficientStorageClusterCapacityFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InsufficientStorageClusterCapacity"
 	}
 	return *e.ErrorCodeOverride
@@ -834,7 +834,7 @@ func (e *InvalidDBClusterSnapshotStateFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidDBClusterSnapshotStateFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidDBClusterSnapshotStateFault"
 	}
 	return *e.ErrorCodeOverride
@@ -862,7 +862,7 @@ func (e *InvalidDBClusterStateFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidDBClusterStateFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidDBClusterStateFault"
 	}
 	return *e.ErrorCodeOverride
@@ -888,7 +888,7 @@ func (e *InvalidDBInstanceStateFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidDBInstanceStateFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidDBInstanceState"
 	}
 	return *e.ErrorCodeOverride
@@ -916,7 +916,7 @@ func (e *InvalidDBParameterGroupStateFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidDBParameterGroupStateFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidDBParameterGroupState"
 	}
 	return *e.ErrorCodeOverride
@@ -942,7 +942,7 @@ func (e *InvalidDBSecurityGroupStateFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidDBSecurityGroupStateFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidDBSecurityGroupState"
 	}
 	return *e.ErrorCodeOverride
@@ -968,7 +968,7 @@ func (e *InvalidDBSnapshotStateFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidDBSnapshotStateFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidDBSnapshotState"
 	}
 	return *e.ErrorCodeOverride
@@ -994,7 +994,7 @@ func (e *InvalidDBSubnetGroupStateFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidDBSubnetGroupStateFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidDBSubnetGroupStateFault"
 	}
 	return *e.ErrorCodeOverride
@@ -1020,7 +1020,7 @@ func (e *InvalidDBSubnetStateFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidDBSubnetStateFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidDBSubnetStateFault"
 	}
 	return *e.ErrorCodeOverride
@@ -1047,7 +1047,7 @@ func (e *InvalidEventSubscriptionStateFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidEventSubscriptionStateFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidEventSubscriptionState"
 	}
 	return *e.ErrorCodeOverride
@@ -1075,7 +1075,7 @@ func (e *InvalidGlobalClusterStateFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidGlobalClusterStateFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidGlobalClusterStateFault"
 	}
 	return *e.ErrorCodeOverride
@@ -1102,7 +1102,7 @@ func (e *InvalidRestoreFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidRestoreFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidRestoreFault"
 	}
 	return *e.ErrorCodeOverride
@@ -1129,7 +1129,7 @@ func (e *InvalidSubnet) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidSubnet) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidSubnet"
 	}
 	return *e.ErrorCodeOverride
@@ -1156,7 +1156,7 @@ func (e *InvalidVPCNetworkStateFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidVPCNetworkStateFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidVPCNetworkStateFault"
 	}
 	return *e.ErrorCodeOverride
@@ -1182,7 +1182,7 @@ func (e *KMSKeyNotAccessibleFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *KMSKeyNotAccessibleFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "KMSKeyNotAccessibleFault"
 	}
 	return *e.ErrorCodeOverride
@@ -1208,7 +1208,7 @@ func (e *ResourceNotFoundFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundFault"
 	}
 	return *e.ErrorCodeOverride
@@ -1235,7 +1235,7 @@ func (e *SharedSnapshotQuotaExceededFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *SharedSnapshotQuotaExceededFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "SharedSnapshotQuotaExceeded"
 	}
 	return *e.ErrorCodeOverride
@@ -1261,7 +1261,7 @@ func (e *SnapshotQuotaExceededFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *SnapshotQuotaExceededFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "SnapshotQuotaExceeded"
 	}
 	return *e.ErrorCodeOverride
@@ -1287,7 +1287,7 @@ func (e *SNSInvalidTopicFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *SNSInvalidTopicFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "SNSInvalidTopic"
 	}
 	return *e.ErrorCodeOverride
@@ -1314,7 +1314,7 @@ func (e *SNSNoAuthorizationFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *SNSNoAuthorizationFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "SNSNoAuthorization"
 	}
 	return *e.ErrorCodeOverride
@@ -1340,7 +1340,7 @@ func (e *SNSTopicArnNotFoundFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *SNSTopicArnNotFoundFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "SNSTopicArnNotFound"
 	}
 	return *e.ErrorCodeOverride
@@ -1366,7 +1366,7 @@ func (e *SourceNotFoundFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *SourceNotFoundFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "SourceNotFound"
 	}
 	return *e.ErrorCodeOverride
@@ -1393,7 +1393,7 @@ func (e *StorageQuotaExceededFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *StorageQuotaExceededFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "StorageQuotaExceeded"
 	}
 	return *e.ErrorCodeOverride
@@ -1419,7 +1419,7 @@ func (e *StorageTypeNotSupportedFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *StorageTypeNotSupportedFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "StorageTypeNotSupported"
 	}
 	return *e.ErrorCodeOverride
@@ -1445,7 +1445,7 @@ func (e *SubnetAlreadyInUse) ErrorMessage() string {
 	return *e.Message
 }
 func (e *SubnetAlreadyInUse) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "SubnetAlreadyInUse"
 	}
 	return *e.ErrorCodeOverride
@@ -1471,7 +1471,7 @@ func (e *SubscriptionAlreadyExistFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *SubscriptionAlreadyExistFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "SubscriptionAlreadyExist"
 	}
 	return *e.ErrorCodeOverride
@@ -1497,7 +1497,7 @@ func (e *SubscriptionCategoryNotFoundFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *SubscriptionCategoryNotFoundFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "SubscriptionCategoryNotFound"
 	}
 	return *e.ErrorCodeOverride
@@ -1523,7 +1523,7 @@ func (e *SubscriptionNotFoundFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *SubscriptionNotFoundFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "SubscriptionNotFound"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/docdbelastic/types/errors.go b/service/docdbelastic/types/errors.go
index 9169bde5eef..d43c802d1b5 100644
--- a/service/docdbelastic/types/errors.go
+++ b/service/docdbelastic/types/errors.go
@@ -27,7 +27,7 @@ func (e *AccessDeniedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AccessDeniedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AccessDeniedException"
 	}
 	return *e.ErrorCodeOverride
@@ -56,7 +56,7 @@ func (e *ConflictException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ConflictException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ConflictException"
 	}
 	return *e.ErrorCodeOverride
@@ -82,7 +82,7 @@ func (e *InternalServerException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalServerException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalServerException"
 	}
 	return *e.ErrorCodeOverride
@@ -111,7 +111,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -137,7 +137,7 @@ func (e *ServiceQuotaExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ServiceQuotaExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ServiceQuotaExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -166,7 +166,7 @@ func (e *ThrottlingException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ThrottlingException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ThrottlingException"
 	}
 	return *e.ErrorCodeOverride
@@ -195,7 +195,7 @@ func (e *ValidationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ValidationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ValidationException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/drs/types/errors.go b/service/drs/types/errors.go
index 86c52aca870..237e67ba110 100644
--- a/service/drs/types/errors.go
+++ b/service/drs/types/errors.go
@@ -28,7 +28,7 @@ func (e *AccessDeniedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AccessDeniedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AccessDeniedException"
 	}
 	return *e.ErrorCodeOverride
@@ -59,7 +59,7 @@ func (e *ConflictException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ConflictException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ConflictException"
 	}
 	return *e.ErrorCodeOverride
@@ -88,7 +88,7 @@ func (e *InternalServerException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalServerException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalServerException"
 	}
 	return *e.ErrorCodeOverride
@@ -118,7 +118,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -150,7 +150,7 @@ func (e *ServiceQuotaExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ServiceQuotaExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ServiceQuotaExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -180,7 +180,7 @@ func (e *ThrottlingException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ThrottlingException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ThrottlingException"
 	}
 	return *e.ErrorCodeOverride
@@ -208,7 +208,7 @@ func (e *UninitializedAccountException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *UninitializedAccountException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "UninitializedAccountException"
 	}
 	return *e.ErrorCodeOverride
@@ -238,7 +238,7 @@ func (e *ValidationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ValidationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ValidationException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/dynamodb/types/errors.go b/service/dynamodb/types/errors.go
index 8678dca7884..1bc159847d4 100644
--- a/service/dynamodb/types/errors.go
+++ b/service/dynamodb/types/errors.go
@@ -27,7 +27,7 @@ func (e *BackupInUseException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *BackupInUseException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "BackupInUseException"
 	}
 	return *e.ErrorCodeOverride
@@ -53,7 +53,7 @@ func (e *BackupNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *BackupNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "BackupNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -79,7 +79,7 @@ func (e *ConditionalCheckFailedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ConditionalCheckFailedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ConditionalCheckFailedException"
 	}
 	return *e.ErrorCodeOverride
@@ -105,7 +105,7 @@ func (e *ContinuousBackupsUnavailableException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ContinuousBackupsUnavailableException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ContinuousBackupsUnavailableException"
 	}
 	return *e.ErrorCodeOverride
@@ -134,7 +134,7 @@ func (e *DuplicateItemException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DuplicateItemException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DuplicateItemException"
 	}
 	return *e.ErrorCodeOverride
@@ -160,7 +160,7 @@ func (e *ExportConflictException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ExportConflictException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ExportConflictException"
 	}
 	return *e.ErrorCodeOverride
@@ -186,7 +186,7 @@ func (e *ExportNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ExportNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ExportNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -212,7 +212,7 @@ func (e *GlobalTableAlreadyExistsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *GlobalTableAlreadyExistsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "GlobalTableAlreadyExistsException"
 	}
 	return *e.ErrorCodeOverride
@@ -238,7 +238,7 @@ func (e *GlobalTableNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *GlobalTableNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "GlobalTableNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -265,7 +265,7 @@ func (e *IdempotentParameterMismatchException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *IdempotentParameterMismatchException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "IdempotentParameterMismatchException"
 	}
 	return *e.ErrorCodeOverride
@@ -295,7 +295,7 @@ func (e *ImportConflictException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ImportConflictException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ImportConflictException"
 	}
 	return *e.ErrorCodeOverride
@@ -321,7 +321,7 @@ func (e *ImportNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ImportNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ImportNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -347,7 +347,7 @@ func (e *IndexNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *IndexNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "IndexNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -373,7 +373,7 @@ func (e *InternalServerError) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalServerError) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalServerError"
 	}
 	return *e.ErrorCodeOverride
@@ -398,7 +398,7 @@ func (e *InvalidEndpointException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidEndpointException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidEndpointException"
 	}
 	return *e.ErrorCodeOverride
@@ -424,7 +424,7 @@ func (e *InvalidExportTimeException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidExportTimeException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidExportTimeException"
 	}
 	return *e.ErrorCodeOverride
@@ -451,7 +451,7 @@ func (e *InvalidRestoreTimeException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidRestoreTimeException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidRestoreTimeException"
 	}
 	return *e.ErrorCodeOverride
@@ -478,7 +478,7 @@ func (e *ItemCollectionSizeLimitExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ItemCollectionSizeLimitExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ItemCollectionSizeLimitExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -515,7 +515,7 @@ func (e *LimitExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *LimitExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "LimitExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -541,7 +541,7 @@ func (e *PointInTimeRecoveryUnavailableException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *PointInTimeRecoveryUnavailableException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "PointInTimeRecoveryUnavailableException"
 	}
 	return *e.ErrorCodeOverride
@@ -575,7 +575,7 @@ func (e *ProvisionedThroughputExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ProvisionedThroughputExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ProvisionedThroughputExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -603,7 +603,7 @@ func (e *ReplicaAlreadyExistsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ReplicaAlreadyExistsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ReplicaAlreadyExistsException"
 	}
 	return *e.ErrorCodeOverride
@@ -629,7 +629,7 @@ func (e *ReplicaNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ReplicaNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ReplicaNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -657,7 +657,7 @@ func (e *RequestLimitExceeded) ErrorMessage() string {
 	return *e.Message
 }
 func (e *RequestLimitExceeded) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "RequestLimitExceeded"
 	}
 	return *e.ErrorCodeOverride
@@ -685,7 +685,7 @@ func (e *ResourceInUseException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceInUseException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceInUseException"
 	}
 	return *e.ErrorCodeOverride
@@ -712,7 +712,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -738,7 +738,7 @@ func (e *TableAlreadyExistsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TableAlreadyExistsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TableAlreadyExistsException"
 	}
 	return *e.ErrorCodeOverride
@@ -764,7 +764,7 @@ func (e *TableInUseException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TableInUseException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TableInUseException"
 	}
 	return *e.ErrorCodeOverride
@@ -792,7 +792,7 @@ func (e *TableNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TableNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TableNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -967,7 +967,7 @@ func (e *TransactionCanceledException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TransactionCanceledException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TransactionCanceledException"
 	}
 	return *e.ErrorCodeOverride
@@ -993,7 +993,7 @@ func (e *TransactionConflictException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TransactionConflictException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TransactionConflictException"
 	}
 	return *e.ErrorCodeOverride
@@ -1019,7 +1019,7 @@ func (e *TransactionInProgressException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TransactionInProgressException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TransactionInProgressException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/dynamodbstreams/types/errors.go b/service/dynamodbstreams/types/errors.go
index 1de894131a5..c1a3fe73872 100644
--- a/service/dynamodbstreams/types/errors.go
+++ b/service/dynamodbstreams/types/errors.go
@@ -28,7 +28,7 @@ func (e *ExpiredIteratorException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ExpiredIteratorException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ExpiredIteratorException"
 	}
 	return *e.ErrorCodeOverride
@@ -54,7 +54,7 @@ func (e *InternalServerError) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalServerError) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalServerError"
 	}
 	return *e.ErrorCodeOverride
@@ -89,7 +89,7 @@ func (e *LimitExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *LimitExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "LimitExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -116,7 +116,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -153,7 +153,7 @@ func (e *TrimmedDataAccessException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TrimmedDataAccessException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TrimmedDataAccessException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/ebs/types/errors.go b/service/ebs/types/errors.go
index a6fe75f64b2..0d74825ce29 100644
--- a/service/ebs/types/errors.go
+++ b/service/ebs/types/errors.go
@@ -28,7 +28,7 @@ func (e *AccessDeniedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AccessDeniedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AccessDeniedException"
 	}
 	return *e.ErrorCodeOverride
@@ -57,7 +57,7 @@ func (e *ConcurrentLimitExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ConcurrentLimitExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ConcurrentLimitExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -83,7 +83,7 @@ func (e *ConflictException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ConflictException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ConflictException"
 	}
 	return *e.ErrorCodeOverride
@@ -109,7 +109,7 @@ func (e *InternalServerException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalServerException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalServerException"
 	}
 	return *e.ErrorCodeOverride
@@ -138,7 +138,7 @@ func (e *RequestThrottledException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *RequestThrottledException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "RequestThrottledException"
 	}
 	return *e.ErrorCodeOverride
@@ -166,7 +166,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -194,7 +194,7 @@ func (e *ServiceQuotaExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ServiceQuotaExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ServiceQuotaExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -222,7 +222,7 @@ func (e *ValidationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ValidationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ValidationException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/ec2instanceconnect/types/errors.go b/service/ec2instanceconnect/types/errors.go
index d056926d5fa..2a7f422b506 100644
--- a/service/ec2instanceconnect/types/errors.go
+++ b/service/ec2instanceconnect/types/errors.go
@@ -27,7 +27,7 @@ func (e *AuthException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AuthException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AuthException"
 	}
 	return *e.ErrorCodeOverride
@@ -53,7 +53,7 @@ func (e *EC2InstanceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *EC2InstanceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "EC2InstanceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -81,7 +81,7 @@ func (e *EC2InstanceStateInvalidException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *EC2InstanceStateInvalidException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "EC2InstanceStateInvalidException"
 	}
 	return *e.ErrorCodeOverride
@@ -108,7 +108,7 @@ func (e *EC2InstanceTypeInvalidException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *EC2InstanceTypeInvalidException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "EC2InstanceTypeInvalidException"
 	}
 	return *e.ErrorCodeOverride
@@ -134,7 +134,7 @@ func (e *EC2InstanceUnavailableException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *EC2InstanceUnavailableException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "EC2InstanceUnavailableException"
 	}
 	return *e.ErrorCodeOverride
@@ -160,7 +160,7 @@ func (e *InvalidArgsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidArgsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidArgsException"
 	}
 	return *e.ErrorCodeOverride
@@ -190,7 +190,7 @@ func (e *SerialConsoleAccessDisabledException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *SerialConsoleAccessDisabledException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "SerialConsoleAccessDisabledException"
 	}
 	return *e.ErrorCodeOverride
@@ -219,7 +219,7 @@ func (e *SerialConsoleSessionLimitExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *SerialConsoleSessionLimitExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "SerialConsoleSessionLimitExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -247,7 +247,7 @@ func (e *SerialConsoleSessionUnavailableException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *SerialConsoleSessionUnavailableException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "SerialConsoleSessionUnavailableException"
 	}
 	return *e.ErrorCodeOverride
@@ -276,7 +276,7 @@ func (e *ServiceException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ServiceException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ServiceException"
 	}
 	return *e.ErrorCodeOverride
@@ -303,7 +303,7 @@ func (e *ThrottlingException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ThrottlingException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ThrottlingException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/ecr/types/errors.go b/service/ecr/types/errors.go
index d41db5c5bec..3f72008bd63 100644
--- a/service/ecr/types/errors.go
+++ b/service/ecr/types/errors.go
@@ -26,7 +26,7 @@ func (e *EmptyUploadException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *EmptyUploadException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "EmptyUploadException"
 	}
 	return *e.ErrorCodeOverride
@@ -53,7 +53,7 @@ func (e *ImageAlreadyExistsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ImageAlreadyExistsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ImageAlreadyExistsException"
 	}
 	return *e.ErrorCodeOverride
@@ -80,7 +80,7 @@ func (e *ImageDigestDoesNotMatchException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ImageDigestDoesNotMatchException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ImageDigestDoesNotMatchException"
 	}
 	return *e.ErrorCodeOverride
@@ -106,7 +106,7 @@ func (e *ImageNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ImageNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ImageNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -133,7 +133,7 @@ func (e *ImageTagAlreadyExistsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ImageTagAlreadyExistsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ImageTagAlreadyExistsException"
 	}
 	return *e.ErrorCodeOverride
@@ -160,7 +160,7 @@ func (e *InvalidLayerException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidLayerException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidLayerException"
 	}
 	return *e.ErrorCodeOverride
@@ -192,7 +192,7 @@ func (e *InvalidLayerPartException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidLayerPartException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidLayerPartException"
 	}
 	return *e.ErrorCodeOverride
@@ -219,7 +219,7 @@ func (e *InvalidParameterException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidParameterException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidParameterException"
 	}
 	return *e.ErrorCodeOverride
@@ -247,7 +247,7 @@ func (e *InvalidTagParameterException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidTagParameterException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidTagParameterException"
 	}
 	return *e.ErrorCodeOverride
@@ -275,7 +275,7 @@ func (e *KmsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *KmsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "KmsException"
 	}
 	return *e.ErrorCodeOverride
@@ -301,7 +301,7 @@ func (e *LayerAlreadyExistsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *LayerAlreadyExistsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "LayerAlreadyExistsException"
 	}
 	return *e.ErrorCodeOverride
@@ -328,7 +328,7 @@ func (e *LayerInaccessibleException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *LayerInaccessibleException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "LayerInaccessibleException"
 	}
 	return *e.ErrorCodeOverride
@@ -354,7 +354,7 @@ func (e *LayerPartTooSmallException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *LayerPartTooSmallException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "LayerPartTooSmallException"
 	}
 	return *e.ErrorCodeOverride
@@ -381,7 +381,7 @@ func (e *LayersNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *LayersNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "LayersNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -407,7 +407,7 @@ func (e *LifecyclePolicyNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *LifecyclePolicyNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "LifecyclePolicyNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -434,7 +434,7 @@ func (e *LifecyclePolicyPreviewInProgressException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *LifecyclePolicyPreviewInProgressException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "LifecyclePolicyPreviewInProgressException"
 	}
 	return *e.ErrorCodeOverride
@@ -462,7 +462,7 @@ func (e *LifecyclePolicyPreviewNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *LifecyclePolicyPreviewNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "LifecyclePolicyPreviewNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -493,7 +493,7 @@ func (e *LimitExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *LimitExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "LimitExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -520,7 +520,7 @@ func (e *PullThroughCacheRuleAlreadyExistsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *PullThroughCacheRuleAlreadyExistsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "PullThroughCacheRuleAlreadyExistsException"
 	}
 	return *e.ErrorCodeOverride
@@ -549,7 +549,7 @@ func (e *PullThroughCacheRuleNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *PullThroughCacheRuleNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "PullThroughCacheRuleNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -577,7 +577,7 @@ func (e *ReferencedImagesNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ReferencedImagesNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ReferencedImagesNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -603,7 +603,7 @@ func (e *RegistryPolicyNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *RegistryPolicyNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "RegistryPolicyNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -629,7 +629,7 @@ func (e *RepositoryAlreadyExistsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *RepositoryAlreadyExistsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "RepositoryAlreadyExistsException"
 	}
 	return *e.ErrorCodeOverride
@@ -656,7 +656,7 @@ func (e *RepositoryNotEmptyException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *RepositoryNotEmptyException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "RepositoryNotEmptyException"
 	}
 	return *e.ErrorCodeOverride
@@ -684,7 +684,7 @@ func (e *RepositoryNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *RepositoryNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "RepositoryNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -711,7 +711,7 @@ func (e *RepositoryPolicyNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *RepositoryPolicyNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "RepositoryPolicyNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -738,7 +738,7 @@ func (e *ScanNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ScanNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ScanNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -764,7 +764,7 @@ func (e *ServerException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ServerException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ServerException"
 	}
 	return *e.ErrorCodeOverride
@@ -791,7 +791,7 @@ func (e *TooManyTagsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TooManyTagsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TooManyTagsException"
 	}
 	return *e.ErrorCodeOverride
@@ -817,7 +817,7 @@ func (e *UnsupportedImageTypeException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *UnsupportedImageTypeException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "UnsupportedImageTypeException"
 	}
 	return *e.ErrorCodeOverride
@@ -843,7 +843,7 @@ func (e *UnsupportedUpstreamRegistryException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *UnsupportedUpstreamRegistryException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "UnsupportedUpstreamRegistryException"
 	}
 	return *e.ErrorCodeOverride
@@ -872,7 +872,7 @@ func (e *UploadNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *UploadNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "UploadNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -898,7 +898,7 @@ func (e *ValidationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ValidationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ValidationException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/ecrpublic/types/errors.go b/service/ecrpublic/types/errors.go
index 66d7e625c71..e9fd62e1b2f 100644
--- a/service/ecrpublic/types/errors.go
+++ b/service/ecrpublic/types/errors.go
@@ -26,7 +26,7 @@ func (e *EmptyUploadException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *EmptyUploadException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "EmptyUploadException"
 	}
 	return *e.ErrorCodeOverride
@@ -53,7 +53,7 @@ func (e *ImageAlreadyExistsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ImageAlreadyExistsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ImageAlreadyExistsException"
 	}
 	return *e.ErrorCodeOverride
@@ -80,7 +80,7 @@ func (e *ImageDigestDoesNotMatchException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ImageDigestDoesNotMatchException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ImageDigestDoesNotMatchException"
 	}
 	return *e.ErrorCodeOverride
@@ -106,7 +106,7 @@ func (e *ImageNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ImageNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ImageNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -133,7 +133,7 @@ func (e *ImageTagAlreadyExistsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ImageTagAlreadyExistsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ImageTagAlreadyExistsException"
 	}
 	return *e.ErrorCodeOverride
@@ -160,7 +160,7 @@ func (e *InvalidLayerException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidLayerException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidLayerException"
 	}
 	return *e.ErrorCodeOverride
@@ -192,7 +192,7 @@ func (e *InvalidLayerPartException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidLayerPartException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidLayerPartException"
 	}
 	return *e.ErrorCodeOverride
@@ -219,7 +219,7 @@ func (e *InvalidParameterException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidParameterException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidParameterException"
 	}
 	return *e.ErrorCodeOverride
@@ -247,7 +247,7 @@ func (e *InvalidTagParameterException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidTagParameterException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidTagParameterException"
 	}
 	return *e.ErrorCodeOverride
@@ -273,7 +273,7 @@ func (e *LayerAlreadyExistsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *LayerAlreadyExistsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "LayerAlreadyExistsException"
 	}
 	return *e.ErrorCodeOverride
@@ -299,7 +299,7 @@ func (e *LayerPartTooSmallException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *LayerPartTooSmallException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "LayerPartTooSmallException"
 	}
 	return *e.ErrorCodeOverride
@@ -326,7 +326,7 @@ func (e *LayersNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *LayersNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "LayersNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -355,7 +355,7 @@ func (e *LimitExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *LimitExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "LimitExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -381,7 +381,7 @@ func (e *ReferencedImagesNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ReferencedImagesNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ReferencedImagesNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -407,7 +407,7 @@ func (e *RegistryNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *RegistryNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "RegistryNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -433,7 +433,7 @@ func (e *RepositoryAlreadyExistsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *RepositoryAlreadyExistsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "RepositoryAlreadyExistsException"
 	}
 	return *e.ErrorCodeOverride
@@ -459,7 +459,7 @@ func (e *RepositoryCatalogDataNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *RepositoryCatalogDataNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "RepositoryCatalogDataNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -488,7 +488,7 @@ func (e *RepositoryNotEmptyException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *RepositoryNotEmptyException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "RepositoryNotEmptyException"
 	}
 	return *e.ErrorCodeOverride
@@ -515,7 +515,7 @@ func (e *RepositoryNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *RepositoryNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "RepositoryNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -542,7 +542,7 @@ func (e *RepositoryPolicyNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *RepositoryPolicyNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "RepositoryPolicyNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -568,7 +568,7 @@ func (e *ServerException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ServerException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ServerException"
 	}
 	return *e.ErrorCodeOverride
@@ -595,7 +595,7 @@ func (e *TooManyTagsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TooManyTagsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TooManyTagsException"
 	}
 	return *e.ErrorCodeOverride
@@ -621,7 +621,7 @@ func (e *UnsupportedCommandException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *UnsupportedCommandException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "UnsupportedCommandException"
 	}
 	return *e.ErrorCodeOverride
@@ -648,7 +648,7 @@ func (e *UploadNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *UploadNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "UploadNotFoundException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/ecs/types/errors.go b/service/ecs/types/errors.go
index e49b2218096..0eacc593200 100644
--- a/service/ecs/types/errors.go
+++ b/service/ecs/types/errors.go
@@ -26,7 +26,7 @@ func (e *AccessDeniedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AccessDeniedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AccessDeniedException"
 	}
 	return *e.ErrorCodeOverride
@@ -54,7 +54,7 @@ func (e *AttributeLimitExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AttributeLimitExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AttributeLimitExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -81,7 +81,7 @@ func (e *BlockedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *BlockedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "BlockedException"
 	}
 	return *e.ErrorCodeOverride
@@ -110,7 +110,7 @@ func (e *ClientException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ClientException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ClientException"
 	}
 	return *e.ErrorCodeOverride
@@ -138,7 +138,7 @@ func (e *ClusterContainsContainerInstancesException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ClusterContainsContainerInstancesException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ClusterContainsContainerInstancesException"
 	}
 	return *e.ErrorCodeOverride
@@ -168,7 +168,7 @@ func (e *ClusterContainsServicesException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ClusterContainsServicesException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ClusterContainsServicesException"
 	}
 	return *e.ErrorCodeOverride
@@ -194,7 +194,7 @@ func (e *ClusterContainsTasksException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ClusterContainsTasksException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ClusterContainsTasksException"
 	}
 	return *e.ErrorCodeOverride
@@ -221,7 +221,7 @@ func (e *ClusterNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ClusterNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ClusterNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -248,7 +248,7 @@ func (e *InvalidParameterException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidParameterException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidParameterException"
 	}
 	return *e.ErrorCodeOverride
@@ -274,7 +274,7 @@ func (e *LimitExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *LimitExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "LimitExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -303,7 +303,7 @@ func (e *MissingVersionException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *MissingVersionException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "MissingVersionException"
 	}
 	return *e.ErrorCodeOverride
@@ -329,7 +329,7 @@ func (e *NamespaceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *NamespaceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "NamespaceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -357,7 +357,7 @@ func (e *NoUpdateAvailableException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *NoUpdateAvailableException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "NoUpdateAvailableException"
 	}
 	return *e.ErrorCodeOverride
@@ -384,7 +384,7 @@ func (e *PlatformTaskDefinitionIncompatibilityException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *PlatformTaskDefinitionIncompatibilityException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "PlatformTaskDefinitionIncompatibilityException"
 	}
 	return *e.ErrorCodeOverride
@@ -412,7 +412,7 @@ func (e *PlatformUnknownException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *PlatformUnknownException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "PlatformUnknownException"
 	}
 	return *e.ErrorCodeOverride
@@ -438,7 +438,7 @@ func (e *ResourceInUseException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceInUseException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceInUseException"
 	}
 	return *e.ErrorCodeOverride
@@ -464,7 +464,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -490,7 +490,7 @@ func (e *ServerException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ServerException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ServerException"
 	}
 	return *e.ErrorCodeOverride
@@ -518,7 +518,7 @@ func (e *ServiceNotActiveException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ServiceNotActiveException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ServiceNotActiveException"
 	}
 	return *e.ErrorCodeOverride
@@ -545,7 +545,7 @@ func (e *ServiceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ServiceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ServiceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -586,7 +586,7 @@ func (e *TargetNotConnectedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TargetNotConnectedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TargetNotConnectedException"
 	}
 	return *e.ErrorCodeOverride
@@ -614,7 +614,7 @@ func (e *TargetNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TargetNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TargetNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -641,7 +641,7 @@ func (e *TaskSetNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TaskSetNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TaskSetNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -667,7 +667,7 @@ func (e *UnsupportedFeatureException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *UnsupportedFeatureException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "UnsupportedFeatureException"
 	}
 	return *e.ErrorCodeOverride
@@ -697,7 +697,7 @@ func (e *UpdateInProgressException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *UpdateInProgressException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "UpdateInProgressException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/efs/types/errors.go b/service/efs/types/errors.go
index 69cf4615d2e..f6d6296cf7e 100644
--- a/service/efs/types/errors.go
+++ b/service/efs/types/errors.go
@@ -30,7 +30,7 @@ func (e *AccessPointAlreadyExists) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AccessPointAlreadyExists) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AccessPointAlreadyExists"
 	}
 	return *e.ErrorCodeOverride
@@ -61,7 +61,7 @@ func (e *AccessPointLimitExceeded) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AccessPointLimitExceeded) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AccessPointLimitExceeded"
 	}
 	return *e.ErrorCodeOverride
@@ -90,7 +90,7 @@ func (e *AccessPointNotFound) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AccessPointNotFound) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AccessPointNotFound"
 	}
 	return *e.ErrorCodeOverride
@@ -121,7 +121,7 @@ func (e *AvailabilityZonesMismatch) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AvailabilityZonesMismatch) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AvailabilityZonesMismatch"
 	}
 	return *e.ErrorCodeOverride
@@ -150,7 +150,7 @@ func (e *BadRequest) ErrorMessage() string {
 	return *e.Message
 }
 func (e *BadRequest) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "BadRequest"
 	}
 	return *e.ErrorCodeOverride
@@ -179,7 +179,7 @@ func (e *DependencyTimeout) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DependencyTimeout) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DependencyTimeout"
 	}
 	return *e.ErrorCodeOverride
@@ -209,7 +209,7 @@ func (e *FileSystemAlreadyExists) ErrorMessage() string {
 	return *e.Message
 }
 func (e *FileSystemAlreadyExists) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "FileSystemAlreadyExists"
 	}
 	return *e.ErrorCodeOverride
@@ -237,7 +237,7 @@ func (e *FileSystemInUse) ErrorMessage() string {
 	return *e.Message
 }
 func (e *FileSystemInUse) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "FileSystemInUse"
 	}
 	return *e.ErrorCodeOverride
@@ -266,7 +266,7 @@ func (e *FileSystemLimitExceeded) ErrorMessage() string {
 	return *e.Message
 }
 func (e *FileSystemLimitExceeded) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "FileSystemLimitExceeded"
 	}
 	return *e.ErrorCodeOverride
@@ -295,7 +295,7 @@ func (e *FileSystemNotFound) ErrorMessage() string {
 	return *e.Message
 }
 func (e *FileSystemNotFound) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "FileSystemNotFound"
 	}
 	return *e.ErrorCodeOverride
@@ -323,7 +323,7 @@ func (e *IncorrectFileSystemLifeCycleState) ErrorMessage() string {
 	return *e.Message
 }
 func (e *IncorrectFileSystemLifeCycleState) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "IncorrectFileSystemLifeCycleState"
 	}
 	return *e.ErrorCodeOverride
@@ -351,7 +351,7 @@ func (e *IncorrectMountTargetState) ErrorMessage() string {
 	return *e.Message
 }
 func (e *IncorrectMountTargetState) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "IncorrectMountTargetState"
 	}
 	return *e.ErrorCodeOverride
@@ -383,7 +383,7 @@ func (e *InsufficientThroughputCapacity) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InsufficientThroughputCapacity) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InsufficientThroughputCapacity"
 	}
 	return *e.ErrorCodeOverride
@@ -411,7 +411,7 @@ func (e *InternalServerError) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalServerError) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalServerError"
 	}
 	return *e.ErrorCodeOverride
@@ -441,7 +441,7 @@ func (e *InvalidPolicyException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidPolicyException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidPolicyException"
 	}
 	return *e.ErrorCodeOverride
@@ -470,7 +470,7 @@ func (e *IpAddressInUse) ErrorMessage() string {
 	return *e.Message
 }
 func (e *IpAddressInUse) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "IpAddressInUse"
 	}
 	return *e.ErrorCodeOverride
@@ -499,7 +499,7 @@ func (e *MountTargetConflict) ErrorMessage() string {
 	return *e.Message
 }
 func (e *MountTargetConflict) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "MountTargetConflict"
 	}
 	return *e.ErrorCodeOverride
@@ -528,7 +528,7 @@ func (e *MountTargetNotFound) ErrorMessage() string {
 	return *e.Message
 }
 func (e *MountTargetNotFound) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "MountTargetNotFound"
 	}
 	return *e.ErrorCodeOverride
@@ -562,7 +562,7 @@ func (e *NetworkInterfaceLimitExceeded) ErrorMessage() string {
 	return *e.Message
 }
 func (e *NetworkInterfaceLimitExceeded) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "NetworkInterfaceLimitExceeded"
 	}
 	return *e.ErrorCodeOverride
@@ -591,7 +591,7 @@ func (e *NoFreeAddressesInSubnet) ErrorMessage() string {
 	return *e.Message
 }
 func (e *NoFreeAddressesInSubnet) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "NoFreeAddressesInSubnet"
 	}
 	return *e.ErrorCodeOverride
@@ -620,7 +620,7 @@ func (e *PolicyNotFound) ErrorMessage() string {
 	return *e.Message
 }
 func (e *PolicyNotFound) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "PolicyNotFound"
 	}
 	return *e.ErrorCodeOverride
@@ -648,7 +648,7 @@ func (e *ReplicationNotFound) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ReplicationNotFound) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ReplicationNotFound"
 	}
 	return *e.ErrorCodeOverride
@@ -677,7 +677,7 @@ func (e *SecurityGroupLimitExceeded) ErrorMessage() string {
 	return *e.Message
 }
 func (e *SecurityGroupLimitExceeded) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "SecurityGroupLimitExceeded"
 	}
 	return *e.ErrorCodeOverride
@@ -706,7 +706,7 @@ func (e *SecurityGroupNotFound) ErrorMessage() string {
 	return *e.Message
 }
 func (e *SecurityGroupNotFound) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "SecurityGroupNotFound"
 	}
 	return *e.ErrorCodeOverride
@@ -734,7 +734,7 @@ func (e *SubnetNotFound) ErrorMessage() string {
 	return *e.Message
 }
 func (e *SubnetNotFound) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "SubnetNotFound"
 	}
 	return *e.ErrorCodeOverride
@@ -764,7 +764,7 @@ func (e *ThrottlingException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ThrottlingException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ThrottlingException"
 	}
 	return *e.ErrorCodeOverride
@@ -793,7 +793,7 @@ func (e *ThroughputLimitExceeded) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ThroughputLimitExceeded) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ThroughputLimitExceeded"
 	}
 	return *e.ErrorCodeOverride
@@ -822,7 +822,7 @@ func (e *TooManyRequests) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TooManyRequests) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TooManyRequests"
 	}
 	return *e.ErrorCodeOverride
@@ -851,7 +851,7 @@ func (e *UnsupportedAvailabilityZone) ErrorMessage() string {
 	return *e.Message
 }
 func (e *UnsupportedAvailabilityZone) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "UnsupportedAvailabilityZone"
 	}
 	return *e.ErrorCodeOverride
@@ -880,7 +880,7 @@ func (e *ValidationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ValidationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ValidationException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/eks/types/errors.go b/service/eks/types/errors.go
index 9d7128d3e8e..03722b63979 100644
--- a/service/eks/types/errors.go
+++ b/service/eks/types/errors.go
@@ -30,7 +30,7 @@ func (e *AccessDeniedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AccessDeniedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AccessDeniedException"
 	}
 	return *e.ErrorCodeOverride
@@ -57,7 +57,7 @@ func (e *BadRequestException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *BadRequestException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "BadRequestException"
 	}
 	return *e.ErrorCodeOverride
@@ -89,7 +89,7 @@ func (e *ClientException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ClientException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ClientException"
 	}
 	return *e.ErrorCodeOverride
@@ -121,7 +121,7 @@ func (e *InvalidParameterException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidParameterException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidParameterException"
 	}
 	return *e.ErrorCodeOverride
@@ -152,7 +152,7 @@ func (e *InvalidRequestException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidRequestException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidRequestException"
 	}
 	return *e.ErrorCodeOverride
@@ -179,7 +179,7 @@ func (e *NotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *NotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "NotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -209,7 +209,7 @@ func (e *ResourceInUseException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceInUseException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceInUseException"
 	}
 	return *e.ErrorCodeOverride
@@ -238,7 +238,7 @@ func (e *ResourceLimitExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceLimitExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceLimitExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -271,7 +271,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -298,7 +298,7 @@ func (e *ResourcePropagationDelayException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourcePropagationDelayException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourcePropagationDelayException"
 	}
 	return *e.ErrorCodeOverride
@@ -328,7 +328,7 @@ func (e *ServerException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ServerException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ServerException"
 	}
 	return *e.ErrorCodeOverride
@@ -354,7 +354,7 @@ func (e *ServiceUnavailableException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ServiceUnavailableException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ServiceUnavailableException"
 	}
 	return *e.ErrorCodeOverride
@@ -387,7 +387,7 @@ func (e *UnsupportedAvailabilityZoneException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *UnsupportedAvailabilityZoneException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "UnsupportedAvailabilityZoneException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/elasticache/types/errors.go b/service/elasticache/types/errors.go
index e8ede5d0d92..179c63a5227 100644
--- a/service/elasticache/types/errors.go
+++ b/service/elasticache/types/errors.go
@@ -26,7 +26,7 @@ func (e *APICallRateForCustomerExceededFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *APICallRateForCustomerExceededFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "APICallRateForCustomerExceeded"
 	}
 	return *e.ErrorCodeOverride
@@ -55,7 +55,7 @@ func (e *AuthorizationAlreadyExistsFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AuthorizationAlreadyExistsFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AuthorizationAlreadyExists"
 	}
 	return *e.ErrorCodeOverride
@@ -82,7 +82,7 @@ func (e *AuthorizationNotFoundFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AuthorizationNotFoundFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AuthorizationNotFound"
 	}
 	return *e.ErrorCodeOverride
@@ -108,7 +108,7 @@ func (e *CacheClusterAlreadyExistsFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *CacheClusterAlreadyExistsFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "CacheClusterAlreadyExists"
 	}
 	return *e.ErrorCodeOverride
@@ -134,7 +134,7 @@ func (e *CacheClusterNotFoundFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *CacheClusterNotFoundFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "CacheClusterNotFound"
 	}
 	return *e.ErrorCodeOverride
@@ -160,7 +160,7 @@ func (e *CacheParameterGroupAlreadyExistsFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *CacheParameterGroupAlreadyExistsFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "CacheParameterGroupAlreadyExists"
 	}
 	return *e.ErrorCodeOverride
@@ -189,7 +189,7 @@ func (e *CacheParameterGroupNotFoundFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *CacheParameterGroupNotFoundFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "CacheParameterGroupNotFound"
 	}
 	return *e.ErrorCodeOverride
@@ -216,7 +216,7 @@ func (e *CacheParameterGroupQuotaExceededFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *CacheParameterGroupQuotaExceededFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "CacheParameterGroupQuotaExceeded"
 	}
 	return *e.ErrorCodeOverride
@@ -244,7 +244,7 @@ func (e *CacheSecurityGroupAlreadyExistsFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *CacheSecurityGroupAlreadyExistsFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "CacheSecurityGroupAlreadyExists"
 	}
 	return *e.ErrorCodeOverride
@@ -273,7 +273,7 @@ func (e *CacheSecurityGroupNotFoundFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *CacheSecurityGroupNotFoundFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "CacheSecurityGroupNotFound"
 	}
 	return *e.ErrorCodeOverride
@@ -300,7 +300,7 @@ func (e *CacheSecurityGroupQuotaExceededFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *CacheSecurityGroupQuotaExceededFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "QuotaExceeded.CacheSecurityGroup"
 	}
 	return *e.ErrorCodeOverride
@@ -329,7 +329,7 @@ func (e *CacheSubnetGroupAlreadyExistsFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *CacheSubnetGroupAlreadyExistsFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "CacheSubnetGroupAlreadyExists"
 	}
 	return *e.ErrorCodeOverride
@@ -357,7 +357,7 @@ func (e *CacheSubnetGroupInUse) ErrorMessage() string {
 	return *e.Message
 }
 func (e *CacheSubnetGroupInUse) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "CacheSubnetGroupInUse"
 	}
 	return *e.ErrorCodeOverride
@@ -384,7 +384,7 @@ func (e *CacheSubnetGroupNotFoundFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *CacheSubnetGroupNotFoundFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "CacheSubnetGroupNotFoundFault"
 	}
 	return *e.ErrorCodeOverride
@@ -411,7 +411,7 @@ func (e *CacheSubnetGroupQuotaExceededFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *CacheSubnetGroupQuotaExceededFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "CacheSubnetGroupQuotaExceeded"
 	}
 	return *e.ErrorCodeOverride
@@ -440,7 +440,7 @@ func (e *CacheSubnetQuotaExceededFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *CacheSubnetQuotaExceededFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "CacheSubnetQuotaExceededFault"
 	}
 	return *e.ErrorCodeOverride
@@ -467,7 +467,7 @@ func (e *ClusterQuotaForCustomerExceededFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ClusterQuotaForCustomerExceededFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ClusterQuotaForCustomerExceeded"
 	}
 	return *e.ErrorCodeOverride
@@ -495,7 +495,7 @@ func (e *DefaultUserAssociatedToUserGroupFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DefaultUserAssociatedToUserGroupFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DefaultUserAssociatedToUserGroup"
 	}
 	return *e.ErrorCodeOverride
@@ -523,7 +523,7 @@ func (e *DefaultUserRequired) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DefaultUserRequired) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DefaultUserRequired"
 	}
 	return *e.ErrorCodeOverride
@@ -549,7 +549,7 @@ func (e *DuplicateUserNameFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DuplicateUserNameFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DuplicateUserName"
 	}
 	return *e.ErrorCodeOverride
@@ -575,7 +575,7 @@ func (e *GlobalReplicationGroupAlreadyExistsFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *GlobalReplicationGroupAlreadyExistsFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "GlobalReplicationGroupAlreadyExistsFault"
 	}
 	return *e.ErrorCodeOverride
@@ -603,7 +603,7 @@ func (e *GlobalReplicationGroupNotFoundFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *GlobalReplicationGroupNotFoundFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "GlobalReplicationGroupNotFoundFault"
 	}
 	return *e.ErrorCodeOverride
@@ -634,7 +634,7 @@ func (e *InsufficientCacheClusterCapacityFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InsufficientCacheClusterCapacityFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InsufficientCacheClusterCapacity"
 	}
 	return *e.ErrorCodeOverride
@@ -662,7 +662,7 @@ func (e *InvalidARNFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidARNFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidARN"
 	}
 	return *e.ErrorCodeOverride
@@ -688,7 +688,7 @@ func (e *InvalidCacheClusterStateFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidCacheClusterStateFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidCacheClusterState"
 	}
 	return *e.ErrorCodeOverride
@@ -715,7 +715,7 @@ func (e *InvalidCacheParameterGroupStateFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidCacheParameterGroupStateFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidCacheParameterGroupState"
 	}
 	return *e.ErrorCodeOverride
@@ -743,7 +743,7 @@ func (e *InvalidCacheSecurityGroupStateFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidCacheSecurityGroupStateFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidCacheSecurityGroupState"
 	}
 	return *e.ErrorCodeOverride
@@ -771,7 +771,7 @@ func (e *InvalidGlobalReplicationGroupStateFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidGlobalReplicationGroupStateFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidGlobalReplicationGroupState"
 	}
 	return *e.ErrorCodeOverride
@@ -799,7 +799,7 @@ func (e *InvalidKMSKeyFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidKMSKeyFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidKMSKeyFault"
 	}
 	return *e.ErrorCodeOverride
@@ -825,7 +825,7 @@ func (e *InvalidParameterCombinationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidParameterCombinationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidParameterCombination"
 	}
 	return *e.ErrorCodeOverride
@@ -853,7 +853,7 @@ func (e *InvalidParameterValueException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidParameterValueException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidParameterValue"
 	}
 	return *e.ErrorCodeOverride
@@ -879,7 +879,7 @@ func (e *InvalidReplicationGroupStateFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidReplicationGroupStateFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidReplicationGroupState"
 	}
 	return *e.ErrorCodeOverride
@@ -906,7 +906,7 @@ func (e *InvalidSnapshotStateFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidSnapshotStateFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidSnapshotState"
 	}
 	return *e.ErrorCodeOverride
@@ -932,7 +932,7 @@ func (e *InvalidSubnet) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidSubnet) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidSubnet"
 	}
 	return *e.ErrorCodeOverride
@@ -958,7 +958,7 @@ func (e *InvalidUserGroupStateFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidUserGroupStateFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidUserGroupState"
 	}
 	return *e.ErrorCodeOverride
@@ -984,7 +984,7 @@ func (e *InvalidUserStateFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidUserStateFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidUserState"
 	}
 	return *e.ErrorCodeOverride
@@ -1010,7 +1010,7 @@ func (e *InvalidVPCNetworkStateFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidVPCNetworkStateFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidVPCNetworkStateFault"
 	}
 	return *e.ErrorCodeOverride
@@ -1038,7 +1038,7 @@ func (e *NodeGroupNotFoundFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *NodeGroupNotFoundFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "NodeGroupNotFoundFault"
 	}
 	return *e.ErrorCodeOverride
@@ -1066,7 +1066,7 @@ func (e *NodeGroupsPerReplicationGroupQuotaExceededFault) ErrorMessage() string
 	return *e.Message
 }
 func (e *NodeGroupsPerReplicationGroupQuotaExceededFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "NodeGroupsPerReplicationGroupQuotaExceeded"
 	}
 	return *e.ErrorCodeOverride
@@ -1095,7 +1095,7 @@ func (e *NodeQuotaForClusterExceededFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *NodeQuotaForClusterExceededFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "NodeQuotaForClusterExceeded"
 	}
 	return *e.ErrorCodeOverride
@@ -1122,7 +1122,7 @@ func (e *NodeQuotaForCustomerExceededFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *NodeQuotaForCustomerExceededFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "NodeQuotaForCustomerExceeded"
 	}
 	return *e.ErrorCodeOverride
@@ -1148,7 +1148,7 @@ func (e *NoOperationFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *NoOperationFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "NoOperationFault"
 	}
 	return *e.ErrorCodeOverride
@@ -1174,7 +1174,7 @@ func (e *ReplicationGroupAlreadyExistsFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ReplicationGroupAlreadyExistsFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ReplicationGroupAlreadyExists"
 	}
 	return *e.ErrorCodeOverride
@@ -1202,7 +1202,7 @@ func (e *ReplicationGroupAlreadyUnderMigrationFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ReplicationGroupAlreadyUnderMigrationFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ReplicationGroupAlreadyUnderMigrationFault"
 	}
 	return *e.ErrorCodeOverride
@@ -1230,7 +1230,7 @@ func (e *ReplicationGroupNotFoundFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ReplicationGroupNotFoundFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ReplicationGroupNotFoundFault"
 	}
 	return *e.ErrorCodeOverride
@@ -1256,7 +1256,7 @@ func (e *ReplicationGroupNotUnderMigrationFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ReplicationGroupNotUnderMigrationFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ReplicationGroupNotUnderMigrationFault"
 	}
 	return *e.ErrorCodeOverride
@@ -1284,7 +1284,7 @@ func (e *ReservedCacheNodeAlreadyExistsFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ReservedCacheNodeAlreadyExistsFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ReservedCacheNodeAlreadyExists"
 	}
 	return *e.ErrorCodeOverride
@@ -1312,7 +1312,7 @@ func (e *ReservedCacheNodeNotFoundFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ReservedCacheNodeNotFoundFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ReservedCacheNodeNotFound"
 	}
 	return *e.ErrorCodeOverride
@@ -1339,7 +1339,7 @@ func (e *ReservedCacheNodeQuotaExceededFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ReservedCacheNodeQuotaExceededFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ReservedCacheNodeQuotaExceeded"
 	}
 	return *e.ErrorCodeOverride
@@ -1367,7 +1367,7 @@ func (e *ReservedCacheNodesOfferingNotFoundFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ReservedCacheNodesOfferingNotFoundFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ReservedCacheNodesOfferingNotFound"
 	}
 	return *e.ErrorCodeOverride
@@ -1395,7 +1395,7 @@ func (e *ServiceLinkedRoleNotFoundFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ServiceLinkedRoleNotFoundFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ServiceLinkedRoleNotFoundFault"
 	}
 	return *e.ErrorCodeOverride
@@ -1421,7 +1421,7 @@ func (e *ServiceUpdateNotFoundFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ServiceUpdateNotFoundFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ServiceUpdateNotFoundFault"
 	}
 	return *e.ErrorCodeOverride
@@ -1447,7 +1447,7 @@ func (e *SnapshotAlreadyExistsFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *SnapshotAlreadyExistsFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "SnapshotAlreadyExistsFault"
 	}
 	return *e.ErrorCodeOverride
@@ -1482,7 +1482,7 @@ func (e *SnapshotFeatureNotSupportedFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *SnapshotFeatureNotSupportedFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "SnapshotFeatureNotSupportedFault"
 	}
 	return *e.ErrorCodeOverride
@@ -1508,7 +1508,7 @@ func (e *SnapshotNotFoundFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *SnapshotNotFoundFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "SnapshotNotFoundFault"
 	}
 	return *e.ErrorCodeOverride
@@ -1535,7 +1535,7 @@ func (e *SnapshotQuotaExceededFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *SnapshotQuotaExceededFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "SnapshotQuotaExceededFault"
 	}
 	return *e.ErrorCodeOverride
@@ -1561,7 +1561,7 @@ func (e *SubnetInUse) ErrorMessage() string {
 	return *e.Message
 }
 func (e *SubnetInUse) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "SubnetInUse"
 	}
 	return *e.ErrorCodeOverride
@@ -1590,7 +1590,7 @@ func (e *SubnetNotAllowedFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *SubnetNotAllowedFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "SubnetNotAllowedFault"
 	}
 	return *e.ErrorCodeOverride
@@ -1616,7 +1616,7 @@ func (e *TagNotFoundFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TagNotFoundFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TagNotFound"
 	}
 	return *e.ErrorCodeOverride
@@ -1644,7 +1644,7 @@ func (e *TagQuotaPerResourceExceeded) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TagQuotaPerResourceExceeded) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TagQuotaPerResourceExceeded"
 	}
 	return *e.ErrorCodeOverride
@@ -1670,7 +1670,7 @@ func (e *TestFailoverNotAvailableFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TestFailoverNotAvailableFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TestFailoverNotAvailableFault"
 	}
 	return *e.ErrorCodeOverride
@@ -1696,7 +1696,7 @@ func (e *UserAlreadyExistsFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *UserAlreadyExistsFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "UserAlreadyExists"
 	}
 	return *e.ErrorCodeOverride
@@ -1722,7 +1722,7 @@ func (e *UserGroupAlreadyExistsFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *UserGroupAlreadyExistsFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "UserGroupAlreadyExists"
 	}
 	return *e.ErrorCodeOverride
@@ -1748,7 +1748,7 @@ func (e *UserGroupNotFoundFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *UserGroupNotFoundFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "UserGroupNotFound"
 	}
 	return *e.ErrorCodeOverride
@@ -1774,7 +1774,7 @@ func (e *UserGroupQuotaExceededFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *UserGroupQuotaExceededFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "UserGroupQuotaExceeded"
 	}
 	return *e.ErrorCodeOverride
@@ -1800,7 +1800,7 @@ func (e *UserNotFoundFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *UserNotFoundFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "UserNotFound"
 	}
 	return *e.ErrorCodeOverride
@@ -1826,7 +1826,7 @@ func (e *UserQuotaExceededFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *UserQuotaExceededFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "UserQuotaExceeded"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/elasticbeanstalk/types/errors.go b/service/elasticbeanstalk/types/errors.go
index ceabfa3cc0f..14cb7e5df33 100644
--- a/service/elasticbeanstalk/types/errors.go
+++ b/service/elasticbeanstalk/types/errors.go
@@ -26,7 +26,7 @@ func (e *CodeBuildNotInServiceRegionException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *CodeBuildNotInServiceRegionException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "CodeBuildNotInServiceRegionException"
 	}
 	return *e.ErrorCodeOverride
@@ -54,7 +54,7 @@ func (e *ElasticBeanstalkServiceException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ElasticBeanstalkServiceException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ElasticBeanstalkServiceException"
 	}
 	return *e.ErrorCodeOverride
@@ -81,7 +81,7 @@ func (e *InsufficientPrivilegesException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InsufficientPrivilegesException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InsufficientPrivilegesException"
 	}
 	return *e.ErrorCodeOverride
@@ -108,7 +108,7 @@ func (e *InvalidRequestException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidRequestException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidRequestException"
 	}
 	return *e.ErrorCodeOverride
@@ -134,7 +134,7 @@ func (e *ManagedActionInvalidStateException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ManagedActionInvalidStateException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ManagedActionInvalidStateException"
 	}
 	return *e.ErrorCodeOverride
@@ -163,7 +163,7 @@ func (e *OperationInProgressException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *OperationInProgressException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "OperationInProgressFailure"
 	}
 	return *e.ErrorCodeOverride
@@ -190,7 +190,7 @@ func (e *PlatformVersionStillReferencedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *PlatformVersionStillReferencedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "PlatformVersionStillReferencedException"
 	}
 	return *e.ErrorCodeOverride
@@ -218,7 +218,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -245,7 +245,7 @@ func (e *ResourceTypeNotSupportedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceTypeNotSupportedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceTypeNotSupportedException"
 	}
 	return *e.ErrorCodeOverride
@@ -279,7 +279,7 @@ func (e *S3LocationNotInServiceRegionException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *S3LocationNotInServiceRegionException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "S3LocationNotInServiceRegionException"
 	}
 	return *e.ErrorCodeOverride
@@ -307,7 +307,7 @@ func (e *S3SubscriptionRequiredException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *S3SubscriptionRequiredException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "S3SubscriptionRequiredException"
 	}
 	return *e.ErrorCodeOverride
@@ -334,7 +334,7 @@ func (e *SourceBundleDeletionException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *SourceBundleDeletionException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "SourceBundleDeletionFailure"
 	}
 	return *e.ErrorCodeOverride
@@ -360,7 +360,7 @@ func (e *TooManyApplicationsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TooManyApplicationsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TooManyApplicationsException"
 	}
 	return *e.ErrorCodeOverride
@@ -386,7 +386,7 @@ func (e *TooManyApplicationVersionsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TooManyApplicationVersionsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TooManyApplicationVersionsException"
 	}
 	return *e.ErrorCodeOverride
@@ -414,7 +414,7 @@ func (e *TooManyBucketsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TooManyBucketsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TooManyBucketsException"
 	}
 	return *e.ErrorCodeOverride
@@ -440,7 +440,7 @@ func (e *TooManyConfigurationTemplatesException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TooManyConfigurationTemplatesException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TooManyConfigurationTemplatesException"
 	}
 	return *e.ErrorCodeOverride
@@ -468,7 +468,7 @@ func (e *TooManyEnvironmentsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TooManyEnvironmentsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TooManyEnvironmentsException"
 	}
 	return *e.ErrorCodeOverride
@@ -495,7 +495,7 @@ func (e *TooManyPlatformsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TooManyPlatformsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TooManyPlatformsException"
 	}
 	return *e.ErrorCodeOverride
@@ -524,7 +524,7 @@ func (e *TooManyTagsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TooManyTagsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TooManyTagsException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/elasticinference/types/errors.go b/service/elasticinference/types/errors.go
index a6a9a196b8d..502f64a7529 100644
--- a/service/elasticinference/types/errors.go
+++ b/service/elasticinference/types/errors.go
@@ -26,7 +26,7 @@ func (e *BadRequestException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *BadRequestException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "BadRequestException"
 	}
 	return *e.ErrorCodeOverride
@@ -52,7 +52,7 @@ func (e *InternalServerException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalServerException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalServerException"
 	}
 	return *e.ErrorCodeOverride
@@ -78,7 +78,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/elasticloadbalancing/types/errors.go b/service/elasticloadbalancing/types/errors.go
index 9deec0715be..d0c82d4dbbc 100644
--- a/service/elasticloadbalancing/types/errors.go
+++ b/service/elasticloadbalancing/types/errors.go
@@ -26,7 +26,7 @@ func (e *AccessPointNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AccessPointNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "LoadBalancerNotFound"
 	}
 	return *e.ErrorCodeOverride
@@ -55,7 +55,7 @@ func (e *CertificateNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *CertificateNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "CertificateNotFound"
 	}
 	return *e.ErrorCodeOverride
@@ -82,7 +82,7 @@ func (e *DependencyThrottleException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DependencyThrottleException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DependencyThrottle"
 	}
 	return *e.ErrorCodeOverride
@@ -108,7 +108,7 @@ func (e *DuplicateAccessPointNameException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DuplicateAccessPointNameException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DuplicateLoadBalancerName"
 	}
 	return *e.ErrorCodeOverride
@@ -135,7 +135,7 @@ func (e *DuplicateListenerException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DuplicateListenerException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DuplicateListener"
 	}
 	return *e.ErrorCodeOverride
@@ -161,7 +161,7 @@ func (e *DuplicatePolicyNameException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DuplicatePolicyNameException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DuplicatePolicyName"
 	}
 	return *e.ErrorCodeOverride
@@ -187,7 +187,7 @@ func (e *DuplicateTagKeysException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DuplicateTagKeysException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DuplicateTagKeys"
 	}
 	return *e.ErrorCodeOverride
@@ -213,7 +213,7 @@ func (e *InvalidConfigurationRequestException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidConfigurationRequestException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidConfigurationRequest"
 	}
 	return *e.ErrorCodeOverride
@@ -241,7 +241,7 @@ func (e *InvalidEndPointException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidEndPointException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidInstance"
 	}
 	return *e.ErrorCodeOverride
@@ -268,7 +268,7 @@ func (e *InvalidSchemeException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidSchemeException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidScheme"
 	}
 	return *e.ErrorCodeOverride
@@ -294,7 +294,7 @@ func (e *InvalidSecurityGroupException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidSecurityGroupException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidSecurityGroup"
 	}
 	return *e.ErrorCodeOverride
@@ -320,7 +320,7 @@ func (e *InvalidSubnetException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidSubnetException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidSubnet"
 	}
 	return *e.ErrorCodeOverride
@@ -346,7 +346,7 @@ func (e *ListenerNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ListenerNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ListenerNotFound"
 	}
 	return *e.ErrorCodeOverride
@@ -372,7 +372,7 @@ func (e *LoadBalancerAttributeNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *LoadBalancerAttributeNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "LoadBalancerAttributeNotFound"
 	}
 	return *e.ErrorCodeOverride
@@ -400,7 +400,7 @@ func (e *OperationNotPermittedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *OperationNotPermittedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "OperationNotPermitted"
 	}
 	return *e.ErrorCodeOverride
@@ -426,7 +426,7 @@ func (e *PolicyNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *PolicyNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "PolicyNotFound"
 	}
 	return *e.ErrorCodeOverride
@@ -452,7 +452,7 @@ func (e *PolicyTypeNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *PolicyTypeNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "PolicyTypeNotFound"
 	}
 	return *e.ErrorCodeOverride
@@ -478,7 +478,7 @@ func (e *SubnetNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *SubnetNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "SubnetNotFound"
 	}
 	return *e.ErrorCodeOverride
@@ -504,7 +504,7 @@ func (e *TooManyAccessPointsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TooManyAccessPointsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TooManyLoadBalancers"
 	}
 	return *e.ErrorCodeOverride
@@ -530,7 +530,7 @@ func (e *TooManyPoliciesException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TooManyPoliciesException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TooManyPolicies"
 	}
 	return *e.ErrorCodeOverride
@@ -557,7 +557,7 @@ func (e *TooManyTagsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TooManyTagsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TooManyTags"
 	}
 	return *e.ErrorCodeOverride
@@ -583,7 +583,7 @@ func (e *UnsupportedProtocolException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *UnsupportedProtocolException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "UnsupportedProtocol"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/elasticloadbalancingv2/types/errors.go b/service/elasticloadbalancingv2/types/errors.go
index 395cce3055d..d2c8fea5558 100644
--- a/service/elasticloadbalancingv2/types/errors.go
+++ b/service/elasticloadbalancingv2/types/errors.go
@@ -26,7 +26,7 @@ func (e *AllocationIdNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AllocationIdNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AllocationIdNotFound"
 	}
 	return *e.ErrorCodeOverride
@@ -52,7 +52,7 @@ func (e *ALPNPolicyNotSupportedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ALPNPolicyNotSupportedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ALPNPolicyNotFound"
 	}
 	return *e.ErrorCodeOverride
@@ -78,7 +78,7 @@ func (e *AvailabilityZoneNotSupportedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AvailabilityZoneNotSupportedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AvailabilityZoneNotSupported"
 	}
 	return *e.ErrorCodeOverride
@@ -106,7 +106,7 @@ func (e *CertificateNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *CertificateNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "CertificateNotFound"
 	}
 	return *e.ErrorCodeOverride
@@ -132,7 +132,7 @@ func (e *DuplicateListenerException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DuplicateListenerException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DuplicateListener"
 	}
 	return *e.ErrorCodeOverride
@@ -158,7 +158,7 @@ func (e *DuplicateLoadBalancerNameException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DuplicateLoadBalancerNameException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DuplicateLoadBalancerName"
 	}
 	return *e.ErrorCodeOverride
@@ -186,7 +186,7 @@ func (e *DuplicateTagKeysException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DuplicateTagKeysException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DuplicateTagKeys"
 	}
 	return *e.ErrorCodeOverride
@@ -212,7 +212,7 @@ func (e *DuplicateTargetGroupNameException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DuplicateTargetGroupNameException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DuplicateTargetGroupName"
 	}
 	return *e.ErrorCodeOverride
@@ -239,7 +239,7 @@ func (e *HealthUnavailableException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *HealthUnavailableException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "HealthUnavailable"
 	}
 	return *e.ErrorCodeOverride
@@ -265,7 +265,7 @@ func (e *IncompatibleProtocolsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *IncompatibleProtocolsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "IncompatibleProtocols"
 	}
 	return *e.ErrorCodeOverride
@@ -291,7 +291,7 @@ func (e *InvalidConfigurationRequestException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidConfigurationRequestException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidConfigurationRequest"
 	}
 	return *e.ErrorCodeOverride
@@ -319,7 +319,7 @@ func (e *InvalidLoadBalancerActionException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidLoadBalancerActionException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidLoadBalancerAction"
 	}
 	return *e.ErrorCodeOverride
@@ -347,7 +347,7 @@ func (e *InvalidSchemeException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidSchemeException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidScheme"
 	}
 	return *e.ErrorCodeOverride
@@ -373,7 +373,7 @@ func (e *InvalidSecurityGroupException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidSecurityGroupException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidSecurityGroup"
 	}
 	return *e.ErrorCodeOverride
@@ -399,7 +399,7 @@ func (e *InvalidSubnetException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidSubnetException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidSubnet"
 	}
 	return *e.ErrorCodeOverride
@@ -426,7 +426,7 @@ func (e *InvalidTargetException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidTargetException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidTarget"
 	}
 	return *e.ErrorCodeOverride
@@ -452,7 +452,7 @@ func (e *ListenerNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ListenerNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ListenerNotFound"
 	}
 	return *e.ErrorCodeOverride
@@ -478,7 +478,7 @@ func (e *LoadBalancerNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *LoadBalancerNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "LoadBalancerNotFound"
 	}
 	return *e.ErrorCodeOverride
@@ -504,7 +504,7 @@ func (e *OperationNotPermittedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *OperationNotPermittedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "OperationNotPermitted"
 	}
 	return *e.ErrorCodeOverride
@@ -530,7 +530,7 @@ func (e *PriorityInUseException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *PriorityInUseException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "PriorityInUse"
 	}
 	return *e.ErrorCodeOverride
@@ -556,7 +556,7 @@ func (e *ResourceInUseException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceInUseException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceInUse"
 	}
 	return *e.ErrorCodeOverride
@@ -582,7 +582,7 @@ func (e *RuleNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *RuleNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "RuleNotFound"
 	}
 	return *e.ErrorCodeOverride
@@ -608,7 +608,7 @@ func (e *SSLPolicyNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *SSLPolicyNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "SSLPolicyNotFound"
 	}
 	return *e.ErrorCodeOverride
@@ -634,7 +634,7 @@ func (e *SubnetNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *SubnetNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "SubnetNotFound"
 	}
 	return *e.ErrorCodeOverride
@@ -660,7 +660,7 @@ func (e *TargetGroupAssociationLimitException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TargetGroupAssociationLimitException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TargetGroupAssociationLimit"
 	}
 	return *e.ErrorCodeOverride
@@ -688,7 +688,7 @@ func (e *TargetGroupNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TargetGroupNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TargetGroupNotFound"
 	}
 	return *e.ErrorCodeOverride
@@ -714,7 +714,7 @@ func (e *TooManyActionsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TooManyActionsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TooManyActions"
 	}
 	return *e.ErrorCodeOverride
@@ -740,7 +740,7 @@ func (e *TooManyCertificatesException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TooManyCertificatesException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TooManyCertificates"
 	}
 	return *e.ErrorCodeOverride
@@ -766,7 +766,7 @@ func (e *TooManyListenersException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TooManyListenersException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TooManyListeners"
 	}
 	return *e.ErrorCodeOverride
@@ -793,7 +793,7 @@ func (e *TooManyLoadBalancersException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TooManyLoadBalancersException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TooManyLoadBalancers"
 	}
 	return *e.ErrorCodeOverride
@@ -820,7 +820,7 @@ func (e *TooManyRegistrationsForTargetIdException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TooManyRegistrationsForTargetIdException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TooManyRegistrationsForTargetId"
 	}
 	return *e.ErrorCodeOverride
@@ -848,7 +848,7 @@ func (e *TooManyRulesException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TooManyRulesException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TooManyRules"
 	}
 	return *e.ErrorCodeOverride
@@ -874,7 +874,7 @@ func (e *TooManyTagsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TooManyTagsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TooManyTags"
 	}
 	return *e.ErrorCodeOverride
@@ -901,7 +901,7 @@ func (e *TooManyTargetGroupsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TooManyTargetGroupsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TooManyTargetGroups"
 	}
 	return *e.ErrorCodeOverride
@@ -927,7 +927,7 @@ func (e *TooManyTargetsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TooManyTargetsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TooManyTargets"
 	}
 	return *e.ErrorCodeOverride
@@ -955,7 +955,7 @@ func (e *TooManyUniqueTargetGroupsPerLoadBalancerException) ErrorMessage() strin
 	return *e.Message
 }
 func (e *TooManyUniqueTargetGroupsPerLoadBalancerException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TooManyUniqueTargetGroupsPerLoadBalancer"
 	}
 	return *e.ErrorCodeOverride
@@ -983,7 +983,7 @@ func (e *UnsupportedProtocolException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *UnsupportedProtocolException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "UnsupportedProtocol"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/elasticsearchservice/types/errors.go b/service/elasticsearchservice/types/errors.go
index dc9b52d6d8c..e44f6bb8153 100644
--- a/service/elasticsearchservice/types/errors.go
+++ b/service/elasticsearchservice/types/errors.go
@@ -27,7 +27,7 @@ func (e *AccessDeniedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AccessDeniedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AccessDeniedException"
 	}
 	return *e.ErrorCodeOverride
@@ -53,7 +53,7 @@ func (e *BaseException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *BaseException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "BaseException"
 	}
 	return *e.ErrorCodeOverride
@@ -80,7 +80,7 @@ func (e *ConflictException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ConflictException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ConflictException"
 	}
 	return *e.ErrorCodeOverride
@@ -107,7 +107,7 @@ func (e *DisabledOperationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DisabledOperationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DisabledOperationException"
 	}
 	return *e.ErrorCodeOverride
@@ -135,7 +135,7 @@ func (e *InternalException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalException"
 	}
 	return *e.ErrorCodeOverride
@@ -162,7 +162,7 @@ func (e *InvalidPaginationTokenException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidPaginationTokenException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidPaginationTokenException"
 	}
 	return *e.ErrorCodeOverride
@@ -189,7 +189,7 @@ func (e *InvalidTypeException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidTypeException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidTypeException"
 	}
 	return *e.ErrorCodeOverride
@@ -216,7 +216,7 @@ func (e *LimitExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *LimitExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "LimitExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -243,7 +243,7 @@ func (e *ResourceAlreadyExistsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceAlreadyExistsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceAlreadyExistsException"
 	}
 	return *e.ErrorCodeOverride
@@ -270,7 +270,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -296,7 +296,7 @@ func (e *ValidationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ValidationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ValidationException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/elastictranscoder/types/errors.go b/service/elastictranscoder/types/errors.go
index 60721f6c431..578936aef4d 100644
--- a/service/elastictranscoder/types/errors.go
+++ b/service/elastictranscoder/types/errors.go
@@ -26,7 +26,7 @@ func (e *AccessDeniedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AccessDeniedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AccessDeniedException"
 	}
 	return *e.ErrorCodeOverride
@@ -51,7 +51,7 @@ func (e *IncompatibleVersionException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *IncompatibleVersionException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "IncompatibleVersionException"
 	}
 	return *e.ErrorCodeOverride
@@ -78,7 +78,7 @@ func (e *InternalServiceException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalServiceException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalServiceException"
 	}
 	return *e.ErrorCodeOverride
@@ -105,7 +105,7 @@ func (e *LimitExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *LimitExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "LimitExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -132,7 +132,7 @@ func (e *ResourceInUseException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceInUseException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceInUseException"
 	}
 	return *e.ErrorCodeOverride
@@ -160,7 +160,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -186,7 +186,7 @@ func (e *ValidationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ValidationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ValidationException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/emr/types/errors.go b/service/emr/types/errors.go
index f40efafe092..181bef1ad4e 100644
--- a/service/emr/types/errors.go
+++ b/service/emr/types/errors.go
@@ -27,7 +27,7 @@ func (e *InternalServerError) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalServerError) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalServerError"
 	}
 	return *e.ErrorCodeOverride
@@ -54,7 +54,7 @@ func (e *InternalServerException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalServerException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalServerException"
 	}
 	return *e.ErrorCodeOverride
@@ -82,7 +82,7 @@ func (e *InvalidRequestException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidRequestException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidRequestException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/emrcontainers/types/errors.go b/service/emrcontainers/types/errors.go
index ab5728148c8..2f2dfc7a30b 100644
--- a/service/emrcontainers/types/errors.go
+++ b/service/emrcontainers/types/errors.go
@@ -26,7 +26,7 @@ func (e *InternalServerException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalServerException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalServerException"
 	}
 	return *e.ErrorCodeOverride
@@ -52,7 +52,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -78,7 +78,7 @@ func (e *ValidationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ValidationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ValidationException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/emrserverless/types/errors.go b/service/emrserverless/types/errors.go
index d173c84f2f4..7da0aef8968 100644
--- a/service/emrserverless/types/errors.go
+++ b/service/emrserverless/types/errors.go
@@ -27,7 +27,7 @@ func (e *ConflictException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ConflictException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ConflictException"
 	}
 	return *e.ErrorCodeOverride
@@ -53,7 +53,7 @@ func (e *InternalServerException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalServerException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalServerException"
 	}
 	return *e.ErrorCodeOverride
@@ -79,7 +79,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -105,7 +105,7 @@ func (e *ServiceQuotaExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ServiceQuotaExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ServiceQuotaExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -131,7 +131,7 @@ func (e *ValidationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ValidationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ValidationException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/eventbridge/types/errors.go b/service/eventbridge/types/errors.go
index 427c4c046b4..fb8b0a0a165 100644
--- a/service/eventbridge/types/errors.go
+++ b/service/eventbridge/types/errors.go
@@ -26,7 +26,7 @@ func (e *ConcurrentModificationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ConcurrentModificationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ConcurrentModificationException"
 	}
 	return *e.ErrorCodeOverride
@@ -53,7 +53,7 @@ func (e *IllegalStatusException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *IllegalStatusException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "IllegalStatusException"
 	}
 	return *e.ErrorCodeOverride
@@ -79,7 +79,7 @@ func (e *InternalException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalException"
 	}
 	return *e.ErrorCodeOverride
@@ -105,7 +105,7 @@ func (e *InvalidEventPatternException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidEventPatternException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidEventPatternException"
 	}
 	return *e.ErrorCodeOverride
@@ -131,7 +131,7 @@ func (e *InvalidStateException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidStateException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidStateException"
 	}
 	return *e.ErrorCodeOverride
@@ -158,7 +158,7 @@ func (e *LimitExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *LimitExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "LimitExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -189,7 +189,7 @@ func (e *ManagedRuleException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ManagedRuleException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ManagedRuleException"
 	}
 	return *e.ErrorCodeOverride
@@ -215,7 +215,7 @@ func (e *OperationDisabledException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *OperationDisabledException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "OperationDisabledException"
 	}
 	return *e.ErrorCodeOverride
@@ -241,7 +241,7 @@ func (e *PolicyLengthExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *PolicyLengthExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "PolicyLengthExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -267,7 +267,7 @@ func (e *ResourceAlreadyExistsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceAlreadyExistsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceAlreadyExistsException"
 	}
 	return *e.ErrorCodeOverride
@@ -293,7 +293,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/evidently/types/errors.go b/service/evidently/types/errors.go
index f03e01d3f85..d32f86c4021 100644
--- a/service/evidently/types/errors.go
+++ b/service/evidently/types/errors.go
@@ -26,7 +26,7 @@ func (e *AccessDeniedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AccessDeniedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AccessDeniedException"
 	}
 	return *e.ErrorCodeOverride
@@ -55,7 +55,7 @@ func (e *ConflictException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ConflictException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ConflictException"
 	}
 	return *e.ErrorCodeOverride
@@ -81,7 +81,7 @@ func (e *InternalServerException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalServerException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalServerException"
 	}
 	return *e.ErrorCodeOverride
@@ -110,7 +110,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -141,7 +141,7 @@ func (e *ServiceQuotaExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ServiceQuotaExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ServiceQuotaExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -167,7 +167,7 @@ func (e *ServiceUnavailableException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ServiceUnavailableException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ServiceUnavailableException"
 	}
 	return *e.ErrorCodeOverride
@@ -196,7 +196,7 @@ func (e *ThrottlingException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ThrottlingException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ThrottlingException"
 	}
 	return *e.ErrorCodeOverride
@@ -225,7 +225,7 @@ func (e *ValidationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ValidationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ValidationException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/finspace/types/errors.go b/service/finspace/types/errors.go
index 5cd2162b319..52f7590eca5 100644
--- a/service/finspace/types/errors.go
+++ b/service/finspace/types/errors.go
@@ -26,7 +26,7 @@ func (e *AccessDeniedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AccessDeniedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AccessDeniedException"
 	}
 	return *e.ErrorCodeOverride
@@ -53,7 +53,7 @@ func (e *InternalServerException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalServerException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalServerException"
 	}
 	return *e.ErrorCodeOverride
@@ -79,7 +79,7 @@ func (e *InvalidRequestException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidRequestException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidRequestException"
 	}
 	return *e.ErrorCodeOverride
@@ -105,7 +105,7 @@ func (e *LimitExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *LimitExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "LimitExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -131,7 +131,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -159,7 +159,7 @@ func (e *ServiceQuotaExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ServiceQuotaExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ServiceQuotaExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -185,7 +185,7 @@ func (e *ThrottlingException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ThrottlingException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ThrottlingException"
 	}
 	return *e.ErrorCodeOverride
@@ -211,7 +211,7 @@ func (e *ValidationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ValidationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ValidationException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/finspacedata/types/errors.go b/service/finspacedata/types/errors.go
index a6d109a92fc..71ec2a7be15 100644
--- a/service/finspacedata/types/errors.go
+++ b/service/finspacedata/types/errors.go
@@ -26,7 +26,7 @@ func (e *AccessDeniedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AccessDeniedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AccessDeniedException"
 	}
 	return *e.ErrorCodeOverride
@@ -54,7 +54,7 @@ func (e *ConflictException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ConflictException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ConflictException"
 	}
 	return *e.ErrorCodeOverride
@@ -81,7 +81,7 @@ func (e *InternalServerException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalServerException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalServerException"
 	}
 	return *e.ErrorCodeOverride
@@ -107,7 +107,7 @@ func (e *LimitExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *LimitExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "LimitExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -135,7 +135,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -161,7 +161,7 @@ func (e *ThrottlingException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ThrottlingException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ThrottlingException"
 	}
 	return *e.ErrorCodeOverride
@@ -189,7 +189,7 @@ func (e *ValidationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ValidationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ValidationException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/firehose/types/errors.go b/service/firehose/types/errors.go
index 8145d792097..e17c956bcb7 100644
--- a/service/firehose/types/errors.go
+++ b/service/firehose/types/errors.go
@@ -27,7 +27,7 @@ func (e *ConcurrentModificationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ConcurrentModificationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ConcurrentModificationException"
 	}
 	return *e.ErrorCodeOverride
@@ -53,7 +53,7 @@ func (e *InvalidArgumentException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidArgumentException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidArgumentException"
 	}
 	return *e.ErrorCodeOverride
@@ -84,7 +84,7 @@ func (e *InvalidKMSResourceException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidKMSResourceException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidKMSResourceException"
 	}
 	return *e.ErrorCodeOverride
@@ -110,7 +110,7 @@ func (e *LimitExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *LimitExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "LimitExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -136,7 +136,7 @@ func (e *ResourceInUseException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceInUseException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceInUseException"
 	}
 	return *e.ErrorCodeOverride
@@ -162,7 +162,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -192,7 +192,7 @@ func (e *ServiceUnavailableException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ServiceUnavailableException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ServiceUnavailableException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/fis/types/errors.go b/service/fis/types/errors.go
index 9b8ea588bdb..960a11effae 100644
--- a/service/fis/types/errors.go
+++ b/service/fis/types/errors.go
@@ -26,7 +26,7 @@ func (e *ConflictException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ConflictException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ConflictException"
 	}
 	return *e.ErrorCodeOverride
@@ -52,7 +52,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -78,7 +78,7 @@ func (e *ServiceQuotaExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ServiceQuotaExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ServiceQuotaExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -105,7 +105,7 @@ func (e *ValidationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ValidationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ValidationException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/fms/types/errors.go b/service/fms/types/errors.go
index 34b529cd9e6..b1bb674409f 100644
--- a/service/fms/types/errors.go
+++ b/service/fms/types/errors.go
@@ -27,7 +27,7 @@ func (e *InternalErrorException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalErrorException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalErrorException"
 	}
 	return *e.ErrorCodeOverride
@@ -53,7 +53,7 @@ func (e *InvalidInputException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidInputException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidInputException"
 	}
 	return *e.ErrorCodeOverride
@@ -84,7 +84,7 @@ func (e *InvalidOperationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidOperationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidOperationException"
 	}
 	return *e.ErrorCodeOverride
@@ -110,7 +110,7 @@ func (e *InvalidTypeException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidTypeException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidTypeException"
 	}
 	return *e.ErrorCodeOverride
@@ -140,7 +140,7 @@ func (e *LimitExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *LimitExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "LimitExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -166,7 +166,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/forecast/types/errors.go b/service/forecast/types/errors.go
index 115974e4e50..40b30672e45 100644
--- a/service/forecast/types/errors.go
+++ b/service/forecast/types/errors.go
@@ -27,7 +27,7 @@ func (e *InvalidInputException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidInputException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidInputException"
 	}
 	return *e.ErrorCodeOverride
@@ -53,7 +53,7 @@ func (e *InvalidNextTokenException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidNextTokenException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidNextTokenException"
 	}
 	return *e.ErrorCodeOverride
@@ -79,7 +79,7 @@ func (e *LimitExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *LimitExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "LimitExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -105,7 +105,7 @@ func (e *ResourceAlreadyExistsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceAlreadyExistsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceAlreadyExistsException"
 	}
 	return *e.ErrorCodeOverride
@@ -131,7 +131,7 @@ func (e *ResourceInUseException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceInUseException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceInUseException"
 	}
 	return *e.ErrorCodeOverride
@@ -158,7 +158,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/forecastquery/types/errors.go b/service/forecastquery/types/errors.go
index 1052732123e..4b820a7a7db 100644
--- a/service/forecastquery/types/errors.go
+++ b/service/forecastquery/types/errors.go
@@ -26,7 +26,7 @@ func (e *InvalidInputException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidInputException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidInputException"
 	}
 	return *e.ErrorCodeOverride
@@ -52,7 +52,7 @@ func (e *InvalidNextTokenException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidNextTokenException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidNextTokenException"
 	}
 	return *e.ErrorCodeOverride
@@ -78,7 +78,7 @@ func (e *LimitExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *LimitExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "LimitExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -104,7 +104,7 @@ func (e *ResourceInUseException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceInUseException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceInUseException"
 	}
 	return *e.ErrorCodeOverride
@@ -131,7 +131,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/frauddetector/types/errors.go b/service/frauddetector/types/errors.go
index 7358278c82e..666517e87bb 100644
--- a/service/frauddetector/types/errors.go
+++ b/service/frauddetector/types/errors.go
@@ -28,7 +28,7 @@ func (e *AccessDeniedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AccessDeniedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AccessDeniedException"
 	}
 	return *e.ErrorCodeOverride
@@ -54,7 +54,7 @@ func (e *ConflictException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ConflictException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ConflictException"
 	}
 	return *e.ErrorCodeOverride
@@ -80,7 +80,7 @@ func (e *InternalServerException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalServerException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalServerException"
 	}
 	return *e.ErrorCodeOverride
@@ -106,7 +106,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -133,7 +133,7 @@ func (e *ResourceUnavailableException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceUnavailableException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceUnavailableException"
 	}
 	return *e.ErrorCodeOverride
@@ -159,7 +159,7 @@ func (e *ThrottlingException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ThrottlingException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ThrottlingException"
 	}
 	return *e.ErrorCodeOverride
@@ -185,7 +185,7 @@ func (e *ValidationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ValidationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ValidationException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/fsx/types/errors.go b/service/fsx/types/errors.go
index c0b80322295..e422713f278 100644
--- a/service/fsx/types/errors.go
+++ b/service/fsx/types/errors.go
@@ -29,7 +29,7 @@ func (e *ActiveDirectoryError) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ActiveDirectoryError) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ActiveDirectoryError"
 	}
 	return *e.ErrorCodeOverride
@@ -57,7 +57,7 @@ func (e *BackupBeingCopied) ErrorMessage() string {
 	return *e.Message
 }
 func (e *BackupBeingCopied) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "BackupBeingCopied"
 	}
 	return *e.ErrorCodeOverride
@@ -84,7 +84,7 @@ func (e *BackupInProgress) ErrorMessage() string {
 	return *e.Message
 }
 func (e *BackupInProgress) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "BackupInProgress"
 	}
 	return *e.ErrorCodeOverride
@@ -110,7 +110,7 @@ func (e *BackupNotFound) ErrorMessage() string {
 	return *e.Message
 }
 func (e *BackupNotFound) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "BackupNotFound"
 	}
 	return *e.ErrorCodeOverride
@@ -138,7 +138,7 @@ func (e *BackupRestoring) ErrorMessage() string {
 	return *e.Message
 }
 func (e *BackupRestoring) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "BackupRestoring"
 	}
 	return *e.ErrorCodeOverride
@@ -164,7 +164,7 @@ func (e *BadRequest) ErrorMessage() string {
 	return *e.Message
 }
 func (e *BadRequest) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "BadRequest"
 	}
 	return *e.ErrorCodeOverride
@@ -190,7 +190,7 @@ func (e *DataRepositoryAssociationNotFound) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DataRepositoryAssociationNotFound) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DataRepositoryAssociationNotFound"
 	}
 	return *e.ErrorCodeOverride
@@ -217,7 +217,7 @@ func (e *DataRepositoryTaskEnded) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DataRepositoryTaskEnded) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DataRepositoryTaskEnded"
 	}
 	return *e.ErrorCodeOverride
@@ -244,7 +244,7 @@ func (e *DataRepositoryTaskExecuting) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DataRepositoryTaskExecuting) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DataRepositoryTaskExecuting"
 	}
 	return *e.ErrorCodeOverride
@@ -270,7 +270,7 @@ func (e *DataRepositoryTaskNotFound) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DataRepositoryTaskNotFound) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DataRepositoryTaskNotFound"
 	}
 	return *e.ErrorCodeOverride
@@ -296,7 +296,7 @@ func (e *FileCacheNotFound) ErrorMessage() string {
 	return *e.Message
 }
 func (e *FileCacheNotFound) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "FileCacheNotFound"
 	}
 	return *e.ErrorCodeOverride
@@ -322,7 +322,7 @@ func (e *FileSystemNotFound) ErrorMessage() string {
 	return *e.Message
 }
 func (e *FileSystemNotFound) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "FileSystemNotFound"
 	}
 	return *e.ErrorCodeOverride
@@ -352,7 +352,7 @@ func (e *IncompatibleParameterError) ErrorMessage() string {
 	return *e.Message
 }
 func (e *IncompatibleParameterError) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "IncompatibleParameterError"
 	}
 	return *e.ErrorCodeOverride
@@ -379,7 +379,7 @@ func (e *IncompatibleRegionForMultiAZ) ErrorMessage() string {
 	return *e.Message
 }
 func (e *IncompatibleRegionForMultiAZ) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "IncompatibleRegionForMultiAZ"
 	}
 	return *e.ErrorCodeOverride
@@ -405,7 +405,7 @@ func (e *InternalServerError) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalServerError) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalServerError"
 	}
 	return *e.ErrorCodeOverride
@@ -431,7 +431,7 @@ func (e *InvalidDataRepositoryType) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidDataRepositoryType) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidDataRepositoryType"
 	}
 	return *e.ErrorCodeOverride
@@ -457,7 +457,7 @@ func (e *InvalidDestinationKmsKey) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidDestinationKmsKey) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidDestinationKmsKey"
 	}
 	return *e.ErrorCodeOverride
@@ -483,7 +483,7 @@ func (e *InvalidExportPath) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidExportPath) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidExportPath"
 	}
 	return *e.ErrorCodeOverride
@@ -509,7 +509,7 @@ func (e *InvalidImportPath) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidImportPath) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidImportPath"
 	}
 	return *e.ErrorCodeOverride
@@ -539,7 +539,7 @@ func (e *InvalidNetworkSettings) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidNetworkSettings) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidNetworkSettings"
 	}
 	return *e.ErrorCodeOverride
@@ -566,7 +566,7 @@ func (e *InvalidPerUnitStorageThroughput) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidPerUnitStorageThroughput) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidPerUnitStorageThroughput"
 	}
 	return *e.ErrorCodeOverride
@@ -593,7 +593,7 @@ func (e *InvalidRegion) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidRegion) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidRegion"
 	}
 	return *e.ErrorCodeOverride
@@ -619,7 +619,7 @@ func (e *InvalidSourceKmsKey) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidSourceKmsKey) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidSourceKmsKey"
 	}
 	return *e.ErrorCodeOverride
@@ -645,7 +645,7 @@ func (e *MissingFileCacheConfiguration) ErrorMessage() string {
 	return *e.Message
 }
 func (e *MissingFileCacheConfiguration) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "MissingFileCacheConfiguration"
 	}
 	return *e.ErrorCodeOverride
@@ -671,7 +671,7 @@ func (e *MissingFileSystemConfiguration) ErrorMessage() string {
 	return *e.Message
 }
 func (e *MissingFileSystemConfiguration) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "MissingFileSystemConfiguration"
 	}
 	return *e.ErrorCodeOverride
@@ -697,7 +697,7 @@ func (e *MissingVolumeConfiguration) ErrorMessage() string {
 	return *e.Message
 }
 func (e *MissingVolumeConfiguration) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "MissingVolumeConfiguration"
 	}
 	return *e.ErrorCodeOverride
@@ -726,7 +726,7 @@ func (e *NotServiceResourceError) ErrorMessage() string {
 	return *e.Message
 }
 func (e *NotServiceResourceError) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "NotServiceResourceError"
 	}
 	return *e.ErrorCodeOverride
@@ -754,7 +754,7 @@ func (e *ResourceDoesNotSupportTagging) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceDoesNotSupportTagging) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceDoesNotSupportTagging"
 	}
 	return *e.ErrorCodeOverride
@@ -782,7 +782,7 @@ func (e *ResourceNotFound) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFound) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFound"
 	}
 	return *e.ErrorCodeOverride
@@ -811,7 +811,7 @@ func (e *ServiceLimitExceeded) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ServiceLimitExceeded) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ServiceLimitExceeded"
 	}
 	return *e.ErrorCodeOverride
@@ -837,7 +837,7 @@ func (e *SnapshotNotFound) ErrorMessage() string {
 	return *e.Message
 }
 func (e *SnapshotNotFound) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "SnapshotNotFound"
 	}
 	return *e.ErrorCodeOverride
@@ -866,7 +866,7 @@ func (e *SourceBackupUnavailable) ErrorMessage() string {
 	return *e.Message
 }
 func (e *SourceBackupUnavailable) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "SourceBackupUnavailable"
 	}
 	return *e.ErrorCodeOverride
@@ -892,7 +892,7 @@ func (e *StorageVirtualMachineNotFound) ErrorMessage() string {
 	return *e.Message
 }
 func (e *StorageVirtualMachineNotFound) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "StorageVirtualMachineNotFound"
 	}
 	return *e.ErrorCodeOverride
@@ -918,7 +918,7 @@ func (e *UnsupportedOperation) ErrorMessage() string {
 	return *e.Message
 }
 func (e *UnsupportedOperation) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "UnsupportedOperation"
 	}
 	return *e.ErrorCodeOverride
@@ -944,7 +944,7 @@ func (e *VolumeNotFound) ErrorMessage() string {
 	return *e.Message
 }
 func (e *VolumeNotFound) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "VolumeNotFound"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/gamelift/types/errors.go b/service/gamelift/types/errors.go
index 43745c927b6..1c72f356898 100644
--- a/service/gamelift/types/errors.go
+++ b/service/gamelift/types/errors.go
@@ -28,7 +28,7 @@ func (e *ConflictException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ConflictException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ConflictException"
 	}
 	return *e.ErrorCodeOverride
@@ -55,7 +55,7 @@ func (e *FleetCapacityExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *FleetCapacityExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "FleetCapacityExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -82,7 +82,7 @@ func (e *GameSessionFullException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *GameSessionFullException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "GameSessionFullException"
 	}
 	return *e.ErrorCodeOverride
@@ -109,7 +109,7 @@ func (e *IdempotentParameterMismatchException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *IdempotentParameterMismatchException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "IdempotentParameterMismatchException"
 	}
 	return *e.ErrorCodeOverride
@@ -138,7 +138,7 @@ func (e *InternalServiceException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalServiceException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalServiceException"
 	}
 	return *e.ErrorCodeOverride
@@ -166,7 +166,7 @@ func (e *InvalidFleetStatusException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidFleetStatusException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidFleetStatusException"
 	}
 	return *e.ErrorCodeOverride
@@ -194,7 +194,7 @@ func (e *InvalidGameSessionStatusException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidGameSessionStatusException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidGameSessionStatusException"
 	}
 	return *e.ErrorCodeOverride
@@ -221,7 +221,7 @@ func (e *InvalidRequestException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidRequestException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidRequestException"
 	}
 	return *e.ErrorCodeOverride
@@ -248,7 +248,7 @@ func (e *LimitExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *LimitExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "LimitExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -275,7 +275,7 @@ func (e *NotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *NotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "NotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -303,7 +303,7 @@ func (e *OutOfCapacityException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *OutOfCapacityException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "OutOfCapacityException"
 	}
 	return *e.ErrorCodeOverride
@@ -331,7 +331,7 @@ func (e *TaggingFailedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TaggingFailedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TaggingFailedException"
 	}
 	return *e.ErrorCodeOverride
@@ -361,7 +361,7 @@ func (e *TerminalRoutingStrategyException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TerminalRoutingStrategyException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TerminalRoutingStrategyException"
 	}
 	return *e.ErrorCodeOverride
@@ -387,7 +387,7 @@ func (e *UnauthorizedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *UnauthorizedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "UnauthorizedException"
 	}
 	return *e.ErrorCodeOverride
@@ -413,7 +413,7 @@ func (e *UnsupportedRegionException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *UnsupportedRegionException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "UnsupportedRegionException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/gamesparks/types/errors.go b/service/gamesparks/types/errors.go
index 4b7d9c6095d..5e9bf9e2b6b 100644
--- a/service/gamesparks/types/errors.go
+++ b/service/gamesparks/types/errors.go
@@ -26,7 +26,7 @@ func (e *AccessDeniedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AccessDeniedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AccessDeniedException"
 	}
 	return *e.ErrorCodeOverride
@@ -52,7 +52,7 @@ func (e *ConflictException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ConflictException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ConflictException"
 	}
 	return *e.ErrorCodeOverride
@@ -78,7 +78,7 @@ func (e *InternalServerException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalServerException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalServerException"
 	}
 	return *e.ErrorCodeOverride
@@ -104,7 +104,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -130,7 +130,7 @@ func (e *ServiceQuotaExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ServiceQuotaExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ServiceQuotaExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -156,7 +156,7 @@ func (e *ThrottlingException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ThrottlingException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ThrottlingException"
 	}
 	return *e.ErrorCodeOverride
@@ -182,7 +182,7 @@ func (e *ValidationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ValidationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ValidationException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/glacier/types/errors.go b/service/glacier/types/errors.go
index 0b3ac9baddb..2a8ebe6e08c 100644
--- a/service/glacier/types/errors.go
+++ b/service/glacier/types/errors.go
@@ -31,7 +31,7 @@ func (e *InsufficientCapacityException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InsufficientCapacityException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InsufficientCapacityException"
 	}
 	return *e.ErrorCodeOverride
@@ -60,7 +60,7 @@ func (e *InvalidParameterValueException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidParameterValueException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidParameterValueException"
 	}
 	return *e.ErrorCodeOverride
@@ -89,7 +89,7 @@ func (e *LimitExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *LimitExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "LimitExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -118,7 +118,7 @@ func (e *MissingParameterValueException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *MissingParameterValueException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "MissingParameterValueException"
 	}
 	return *e.ErrorCodeOverride
@@ -148,7 +148,7 @@ func (e *PolicyEnforcedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *PolicyEnforcedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "PolicyEnforcedException"
 	}
 	return *e.ErrorCodeOverride
@@ -178,7 +178,7 @@ func (e *RequestTimeoutException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *RequestTimeoutException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "RequestTimeoutException"
 	}
 	return *e.ErrorCodeOverride
@@ -208,7 +208,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -237,7 +237,7 @@ func (e *ServiceUnavailableException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ServiceUnavailableException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ServiceUnavailableException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/globalaccelerator/types/errors.go b/service/globalaccelerator/types/errors.go
index 7a6038ff1a8..5a88aa37a8e 100644
--- a/service/globalaccelerator/types/errors.go
+++ b/service/globalaccelerator/types/errors.go
@@ -26,7 +26,7 @@ func (e *AcceleratorNotDisabledException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AcceleratorNotDisabledException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AcceleratorNotDisabledException"
 	}
 	return *e.ErrorCodeOverride
@@ -52,7 +52,7 @@ func (e *AcceleratorNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AcceleratorNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AcceleratorNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -78,7 +78,7 @@ func (e *AccessDeniedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AccessDeniedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AccessDeniedException"
 	}
 	return *e.ErrorCodeOverride
@@ -105,7 +105,7 @@ func (e *AssociatedEndpointGroupFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AssociatedEndpointGroupFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AssociatedEndpointGroupFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -134,7 +134,7 @@ func (e *AssociatedListenerFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AssociatedListenerFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AssociatedListenerFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -160,7 +160,7 @@ func (e *ByoipCidrNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ByoipCidrNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ByoipCidrNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -186,7 +186,7 @@ func (e *ConflictException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ConflictException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ConflictException"
 	}
 	return *e.ErrorCodeOverride
@@ -212,7 +212,7 @@ func (e *EndpointAlreadyExistsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *EndpointAlreadyExistsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "EndpointAlreadyExistsException"
 	}
 	return *e.ErrorCodeOverride
@@ -238,7 +238,7 @@ func (e *EndpointGroupAlreadyExistsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *EndpointGroupAlreadyExistsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "EndpointGroupAlreadyExistsException"
 	}
 	return *e.ErrorCodeOverride
@@ -266,7 +266,7 @@ func (e *EndpointGroupNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *EndpointGroupNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "EndpointGroupNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -292,7 +292,7 @@ func (e *EndpointNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *EndpointNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "EndpointNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -319,7 +319,7 @@ func (e *IncorrectCidrStateException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *IncorrectCidrStateException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "IncorrectCidrStateException"
 	}
 	return *e.ErrorCodeOverride
@@ -345,7 +345,7 @@ func (e *InternalServiceErrorException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalServiceErrorException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalServiceErrorException"
 	}
 	return *e.ErrorCodeOverride
@@ -371,7 +371,7 @@ func (e *InvalidArgumentException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidArgumentException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidArgumentException"
 	}
 	return *e.ErrorCodeOverride
@@ -397,7 +397,7 @@ func (e *InvalidNextTokenException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidNextTokenException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidNextTokenException"
 	}
 	return *e.ErrorCodeOverride
@@ -424,7 +424,7 @@ func (e *InvalidPortRangeException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidPortRangeException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidPortRangeException"
 	}
 	return *e.ErrorCodeOverride
@@ -450,7 +450,7 @@ func (e *LimitExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *LimitExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "LimitExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -476,7 +476,7 @@ func (e *ListenerNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ListenerNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ListenerNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -503,7 +503,7 @@ func (e *TransactionInProgressException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TransactionInProgressException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TransactionInProgressException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/glue/types/errors.go b/service/glue/types/errors.go
index a5797c4804d..ae8cff6987a 100644
--- a/service/glue/types/errors.go
+++ b/service/glue/types/errors.go
@@ -26,7 +26,7 @@ func (e *AccessDeniedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AccessDeniedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AccessDeniedException"
 	}
 	return *e.ErrorCodeOverride
@@ -52,7 +52,7 @@ func (e *AlreadyExistsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AlreadyExistsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AlreadyExistsException"
 	}
 	return *e.ErrorCodeOverride
@@ -78,7 +78,7 @@ func (e *ConcurrentModificationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ConcurrentModificationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ConcurrentModificationException"
 	}
 	return *e.ErrorCodeOverride
@@ -104,7 +104,7 @@ func (e *ConcurrentRunsExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ConcurrentRunsExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ConcurrentRunsExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -130,7 +130,7 @@ func (e *ConditionCheckFailureException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ConditionCheckFailureException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ConditionCheckFailureException"
 	}
 	return *e.ErrorCodeOverride
@@ -156,7 +156,7 @@ func (e *ConflictException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ConflictException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ConflictException"
 	}
 	return *e.ErrorCodeOverride
@@ -182,7 +182,7 @@ func (e *CrawlerNotRunningException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *CrawlerNotRunningException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "CrawlerNotRunningException"
 	}
 	return *e.ErrorCodeOverride
@@ -208,7 +208,7 @@ func (e *CrawlerRunningException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *CrawlerRunningException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "CrawlerRunningException"
 	}
 	return *e.ErrorCodeOverride
@@ -234,7 +234,7 @@ func (e *CrawlerStoppingException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *CrawlerStoppingException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "CrawlerStoppingException"
 	}
 	return *e.ErrorCodeOverride
@@ -260,7 +260,7 @@ func (e *EntityNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *EntityNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "EntityNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -286,7 +286,7 @@ func (e *GlueEncryptionException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *GlueEncryptionException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "GlueEncryptionException"
 	}
 	return *e.ErrorCodeOverride
@@ -312,7 +312,7 @@ func (e *IdempotentParameterMismatchException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *IdempotentParameterMismatchException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "IdempotentParameterMismatchException"
 	}
 	return *e.ErrorCodeOverride
@@ -340,7 +340,7 @@ func (e *IllegalBlueprintStateException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *IllegalBlueprintStateException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "IllegalBlueprintStateException"
 	}
 	return *e.ErrorCodeOverride
@@ -366,7 +366,7 @@ func (e *IllegalSessionStateException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *IllegalSessionStateException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "IllegalSessionStateException"
 	}
 	return *e.ErrorCodeOverride
@@ -392,7 +392,7 @@ func (e *IllegalWorkflowStateException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *IllegalWorkflowStateException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "IllegalWorkflowStateException"
 	}
 	return *e.ErrorCodeOverride
@@ -418,7 +418,7 @@ func (e *InternalServiceException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalServiceException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalServiceException"
 	}
 	return *e.ErrorCodeOverride
@@ -444,7 +444,7 @@ func (e *InvalidInputException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidInputException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidInputException"
 	}
 	return *e.ErrorCodeOverride
@@ -470,7 +470,7 @@ func (e *InvalidStateException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidStateException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidStateException"
 	}
 	return *e.ErrorCodeOverride
@@ -496,7 +496,7 @@ func (e *MLTransformNotReadyException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *MLTransformNotReadyException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "MLTransformNotReadyException"
 	}
 	return *e.ErrorCodeOverride
@@ -522,7 +522,7 @@ func (e *NoScheduleException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *NoScheduleException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "NoScheduleException"
 	}
 	return *e.ErrorCodeOverride
@@ -548,7 +548,7 @@ func (e *OperationTimeoutException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *OperationTimeoutException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "OperationTimeoutException"
 	}
 	return *e.ErrorCodeOverride
@@ -573,7 +573,7 @@ func (e *PermissionTypeMismatchException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *PermissionTypeMismatchException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "PermissionTypeMismatchException"
 	}
 	return *e.ErrorCodeOverride
@@ -599,7 +599,7 @@ func (e *ResourceNotReadyException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotReadyException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotReadyException"
 	}
 	return *e.ErrorCodeOverride
@@ -625,7 +625,7 @@ func (e *ResourceNumberLimitExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNumberLimitExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNumberLimitExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -653,7 +653,7 @@ func (e *SchedulerNotRunningException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *SchedulerNotRunningException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "SchedulerNotRunningException"
 	}
 	return *e.ErrorCodeOverride
@@ -679,7 +679,7 @@ func (e *SchedulerRunningException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *SchedulerRunningException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "SchedulerRunningException"
 	}
 	return *e.ErrorCodeOverride
@@ -705,7 +705,7 @@ func (e *SchedulerTransitioningException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *SchedulerTransitioningException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "SchedulerTransitioningException"
 	}
 	return *e.ErrorCodeOverride
@@ -731,7 +731,7 @@ func (e *ValidationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ValidationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ValidationException"
 	}
 	return *e.ErrorCodeOverride
@@ -757,7 +757,7 @@ func (e *VersionMismatchException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *VersionMismatchException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "VersionMismatchException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/grafana/types/errors.go b/service/grafana/types/errors.go
index 889aee13c08..1dc61490507 100644
--- a/service/grafana/types/errors.go
+++ b/service/grafana/types/errors.go
@@ -26,7 +26,7 @@ func (e *AccessDeniedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AccessDeniedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AccessDeniedException"
 	}
 	return *e.ErrorCodeOverride
@@ -55,7 +55,7 @@ func (e *ConflictException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ConflictException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ConflictException"
 	}
 	return *e.ErrorCodeOverride
@@ -83,7 +83,7 @@ func (e *InternalServerException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalServerException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalServerException"
 	}
 	return *e.ErrorCodeOverride
@@ -112,7 +112,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -143,7 +143,7 @@ func (e *ServiceQuotaExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ServiceQuotaExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ServiceQuotaExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -173,7 +173,7 @@ func (e *ThrottlingException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ThrottlingException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ThrottlingException"
 	}
 	return *e.ErrorCodeOverride
@@ -202,7 +202,7 @@ func (e *ValidationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ValidationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ValidationException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/greengrass/types/errors.go b/service/greengrass/types/errors.go
index 1bf8185fec0..9a262c658ad 100644
--- a/service/greengrass/types/errors.go
+++ b/service/greengrass/types/errors.go
@@ -28,7 +28,7 @@ func (e *BadRequestException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *BadRequestException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "BadRequestException"
 	}
 	return *e.ErrorCodeOverride
@@ -56,7 +56,7 @@ func (e *InternalServerErrorException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalServerErrorException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalServerErrorException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/greengrassv2/types/errors.go b/service/greengrassv2/types/errors.go
index d4b8aa6cd7f..65a0667ae2f 100644
--- a/service/greengrassv2/types/errors.go
+++ b/service/greengrassv2/types/errors.go
@@ -26,7 +26,7 @@ func (e *AccessDeniedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AccessDeniedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AccessDeniedException"
 	}
 	return *e.ErrorCodeOverride
@@ -56,7 +56,7 @@ func (e *ConflictException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ConflictException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ConflictException"
 	}
 	return *e.ErrorCodeOverride
@@ -84,7 +84,7 @@ func (e *InternalServerException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalServerException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalServerException"
 	}
 	return *e.ErrorCodeOverride
@@ -112,7 +112,7 @@ func (e *RequestAlreadyInProgressException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *RequestAlreadyInProgressException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "RequestAlreadyInProgressException"
 	}
 	return *e.ErrorCodeOverride
@@ -141,7 +141,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -173,7 +173,7 @@ func (e *ServiceQuotaExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ServiceQuotaExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ServiceQuotaExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -205,7 +205,7 @@ func (e *ThrottlingException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ThrottlingException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ThrottlingException"
 	}
 	return *e.ErrorCodeOverride
@@ -235,7 +235,7 @@ func (e *ValidationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ValidationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ValidationException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/groundstation/types/errors.go b/service/groundstation/types/errors.go
index 384102b6309..970fa6ef312 100644
--- a/service/groundstation/types/errors.go
+++ b/service/groundstation/types/errors.go
@@ -28,7 +28,7 @@ func (e *DependencyException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DependencyException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DependencyException"
 	}
 	return *e.ErrorCodeOverride
@@ -56,7 +56,7 @@ func (e *InvalidParameterException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidParameterException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidParameterException"
 	}
 	return *e.ErrorCodeOverride
@@ -84,7 +84,7 @@ func (e *ResourceLimitExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceLimitExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceLimitExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -110,7 +110,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/guardduty/types/errors.go b/service/guardduty/types/errors.go
index b2094921572..71e5e0df50b 100644
--- a/service/guardduty/types/errors.go
+++ b/service/guardduty/types/errors.go
@@ -28,7 +28,7 @@ func (e *BadRequestException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *BadRequestException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "BadRequestException"
 	}
 	return *e.ErrorCodeOverride
@@ -56,7 +56,7 @@ func (e *InternalServerErrorException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalServerErrorException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalServerErrorException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/health/types/errors.go b/service/health/types/errors.go
index 8f03a6b4af7..6b5c65f0aba 100644
--- a/service/health/types/errors.go
+++ b/service/health/types/errors.go
@@ -31,7 +31,7 @@ func (e *ConcurrentModificationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ConcurrentModificationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ConcurrentModificationException"
 	}
 	return *e.ErrorCodeOverride
@@ -57,7 +57,7 @@ func (e *InvalidPaginationToken) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidPaginationToken) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidPaginationToken"
 	}
 	return *e.ErrorCodeOverride
@@ -83,7 +83,7 @@ func (e *UnsupportedLocale) ErrorMessage() string {
 	return *e.Message
 }
 func (e *UnsupportedLocale) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "UnsupportedLocale"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/healthlake/types/errors.go b/service/healthlake/types/errors.go
index 8d15c3f00c2..54b3f74ade3 100644
--- a/service/healthlake/types/errors.go
+++ b/service/healthlake/types/errors.go
@@ -26,7 +26,7 @@ func (e *AccessDeniedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AccessDeniedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AccessDeniedException"
 	}
 	return *e.ErrorCodeOverride
@@ -53,7 +53,7 @@ func (e *ConflictException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ConflictException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ConflictException"
 	}
 	return *e.ErrorCodeOverride
@@ -79,7 +79,7 @@ func (e *InternalServerException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalServerException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalServerException"
 	}
 	return *e.ErrorCodeOverride
@@ -105,7 +105,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -131,7 +131,7 @@ func (e *ThrottlingException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ThrottlingException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ThrottlingException"
 	}
 	return *e.ErrorCodeOverride
@@ -157,7 +157,7 @@ func (e *ValidationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ValidationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ValidationException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/honeycode/types/errors.go b/service/honeycode/types/errors.go
index d77b55ab996..5b83dd3b2c5 100644
--- a/service/honeycode/types/errors.go
+++ b/service/honeycode/types/errors.go
@@ -28,7 +28,7 @@ func (e *AccessDeniedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AccessDeniedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AccessDeniedException"
 	}
 	return *e.ErrorCodeOverride
@@ -54,7 +54,7 @@ func (e *AutomationExecutionException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AutomationExecutionException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AutomationExecutionException"
 	}
 	return *e.ErrorCodeOverride
@@ -80,7 +80,7 @@ func (e *AutomationExecutionTimeoutException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AutomationExecutionTimeoutException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AutomationExecutionTimeoutException"
 	}
 	return *e.ErrorCodeOverride
@@ -108,7 +108,7 @@ func (e *InternalServerException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalServerException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalServerException"
 	}
 	return *e.ErrorCodeOverride
@@ -134,7 +134,7 @@ func (e *RequestTimeoutException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *RequestTimeoutException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "RequestTimeoutException"
 	}
 	return *e.ErrorCodeOverride
@@ -161,7 +161,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -187,7 +187,7 @@ func (e *ServiceQuotaExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ServiceQuotaExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ServiceQuotaExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -213,7 +213,7 @@ func (e *ServiceUnavailableException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ServiceUnavailableException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ServiceUnavailableException"
 	}
 	return *e.ErrorCodeOverride
@@ -239,7 +239,7 @@ func (e *ThrottlingException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ThrottlingException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ThrottlingException"
 	}
 	return *e.ErrorCodeOverride
@@ -266,7 +266,7 @@ func (e *ValidationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ValidationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ValidationException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/iam/types/errors.go b/service/iam/types/errors.go
index 8e39c7d63d1..6c837e2ff44 100644
--- a/service/iam/types/errors.go
+++ b/service/iam/types/errors.go
@@ -27,7 +27,7 @@ func (e *ConcurrentModificationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ConcurrentModificationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ConcurrentModification"
 	}
 	return *e.ErrorCodeOverride
@@ -57,7 +57,7 @@ func (e *CredentialReportExpiredException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *CredentialReportExpiredException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ReportExpired"
 	}
 	return *e.ErrorCodeOverride
@@ -84,7 +84,7 @@ func (e *CredentialReportNotPresentException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *CredentialReportNotPresentException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ReportNotPresent"
 	}
 	return *e.ErrorCodeOverride
@@ -112,7 +112,7 @@ func (e *CredentialReportNotReadyException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *CredentialReportNotReadyException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ReportInProgress"
 	}
 	return *e.ErrorCodeOverride
@@ -139,7 +139,7 @@ func (e *DeleteConflictException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DeleteConflictException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DeleteConflict"
 	}
 	return *e.ErrorCodeOverride
@@ -166,7 +166,7 @@ func (e *DuplicateCertificateException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DuplicateCertificateException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DuplicateCertificate"
 	}
 	return *e.ErrorCodeOverride
@@ -193,7 +193,7 @@ func (e *DuplicateSSHPublicKeyException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DuplicateSSHPublicKeyException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DuplicateSSHPublicKey"
 	}
 	return *e.ErrorCodeOverride
@@ -220,7 +220,7 @@ func (e *EntityAlreadyExistsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *EntityAlreadyExistsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "EntityAlreadyExists"
 	}
 	return *e.ErrorCodeOverride
@@ -249,7 +249,7 @@ func (e *EntityTemporarilyUnmodifiableException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *EntityTemporarilyUnmodifiableException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "EntityTemporarilyUnmodifiable"
 	}
 	return *e.ErrorCodeOverride
@@ -278,7 +278,7 @@ func (e *InvalidAuthenticationCodeException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidAuthenticationCodeException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidAuthenticationCode"
 	}
 	return *e.ErrorCodeOverride
@@ -306,7 +306,7 @@ func (e *InvalidCertificateException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidCertificateException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidCertificate"
 	}
 	return *e.ErrorCodeOverride
@@ -333,7 +333,7 @@ func (e *InvalidInputException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidInputException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidInput"
 	}
 	return *e.ErrorCodeOverride
@@ -360,7 +360,7 @@ func (e *InvalidPublicKeyException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidPublicKeyException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidPublicKey"
 	}
 	return *e.ErrorCodeOverride
@@ -387,7 +387,7 @@ func (e *InvalidUserTypeException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidUserTypeException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidUserType"
 	}
 	return *e.ErrorCodeOverride
@@ -414,7 +414,7 @@ func (e *KeyPairMismatchException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *KeyPairMismatchException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "KeyPairMismatch"
 	}
 	return *e.ErrorCodeOverride
@@ -442,7 +442,7 @@ func (e *LimitExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *LimitExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "LimitExceeded"
 	}
 	return *e.ErrorCodeOverride
@@ -469,7 +469,7 @@ func (e *MalformedCertificateException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *MalformedCertificateException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "MalformedCertificate"
 	}
 	return *e.ErrorCodeOverride
@@ -496,7 +496,7 @@ func (e *MalformedPolicyDocumentException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *MalformedPolicyDocumentException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "MalformedPolicyDocument"
 	}
 	return *e.ErrorCodeOverride
@@ -523,7 +523,7 @@ func (e *NoSuchEntityException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *NoSuchEntityException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "NoSuchEntity"
 	}
 	return *e.ErrorCodeOverride
@@ -550,7 +550,7 @@ func (e *PasswordPolicyViolationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *PasswordPolicyViolationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "PasswordPolicyViolation"
 	}
 	return *e.ErrorCodeOverride
@@ -577,7 +577,7 @@ func (e *PolicyEvaluationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *PolicyEvaluationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "PolicyEvaluation"
 	}
 	return *e.ErrorCodeOverride
@@ -604,7 +604,7 @@ func (e *PolicyNotAttachableException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *PolicyNotAttachableException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "PolicyNotAttachable"
 	}
 	return *e.ErrorCodeOverride
@@ -631,7 +631,7 @@ func (e *ReportGenerationLimitExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ReportGenerationLimitExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ReportGenerationLimitExceeded"
 	}
 	return *e.ErrorCodeOverride
@@ -660,7 +660,7 @@ func (e *ServiceFailureException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ServiceFailureException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ServiceFailure"
 	}
 	return *e.ErrorCodeOverride
@@ -686,7 +686,7 @@ func (e *ServiceNotSupportedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ServiceNotSupportedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "NotSupportedService"
 	}
 	return *e.ErrorCodeOverride
@@ -715,7 +715,7 @@ func (e *UnmodifiableEntityException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *UnmodifiableEntityException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "UnmodifiableEntity"
 	}
 	return *e.ErrorCodeOverride
@@ -742,7 +742,7 @@ func (e *UnrecognizedPublicKeyEncodingException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *UnrecognizedPublicKeyEncodingException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "UnrecognizedPublicKeyEncoding"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/identitystore/types/errors.go b/service/identitystore/types/errors.go
index 82c2dd6de5e..e7c4b32fc61 100644
--- a/service/identitystore/types/errors.go
+++ b/service/identitystore/types/errors.go
@@ -28,7 +28,7 @@ func (e *AccessDeniedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AccessDeniedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AccessDeniedException"
 	}
 	return *e.ErrorCodeOverride
@@ -64,7 +64,7 @@ func (e *ConflictException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ConflictException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ConflictException"
 	}
 	return *e.ErrorCodeOverride
@@ -94,7 +94,7 @@ func (e *InternalServerException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalServerException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalServerException"
 	}
 	return *e.ErrorCodeOverride
@@ -124,7 +124,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -153,7 +153,7 @@ func (e *ServiceQuotaExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ServiceQuotaExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ServiceQuotaExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -183,7 +183,7 @@ func (e *ThrottlingException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ThrottlingException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ThrottlingException"
 	}
 	return *e.ErrorCodeOverride
@@ -211,7 +211,7 @@ func (e *ValidationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ValidationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ValidationException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/imagebuilder/types/errors.go b/service/imagebuilder/types/errors.go
index bfba7e92954..8b34a4219c6 100644
--- a/service/imagebuilder/types/errors.go
+++ b/service/imagebuilder/types/errors.go
@@ -26,7 +26,7 @@ func (e *CallRateLimitExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *CallRateLimitExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "CallRateLimitExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -54,7 +54,7 @@ func (e *ClientException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ClientException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ClientException"
 	}
 	return *e.ErrorCodeOverride
@@ -80,7 +80,7 @@ func (e *ForbiddenException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ForbiddenException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ForbiddenException"
 	}
 	return *e.ErrorCodeOverride
@@ -107,7 +107,7 @@ func (e *IdempotentParameterMismatchException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *IdempotentParameterMismatchException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "IdempotentParameterMismatchException"
 	}
 	return *e.ErrorCodeOverride
@@ -135,7 +135,7 @@ func (e *InvalidPaginationTokenException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidPaginationTokenException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidPaginationTokenException"
 	}
 	return *e.ErrorCodeOverride
@@ -162,7 +162,7 @@ func (e *InvalidParameterCombinationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidParameterCombinationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidParameterCombinationException"
 	}
 	return *e.ErrorCodeOverride
@@ -191,7 +191,7 @@ func (e *InvalidParameterException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidParameterException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidParameterException"
 	}
 	return *e.ErrorCodeOverride
@@ -217,7 +217,7 @@ func (e *InvalidParameterValueException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidParameterValueException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidParameterValueException"
 	}
 	return *e.ErrorCodeOverride
@@ -243,7 +243,7 @@ func (e *InvalidRequestException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidRequestException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidRequestException"
 	}
 	return *e.ErrorCodeOverride
@@ -269,7 +269,7 @@ func (e *InvalidVersionNumberException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidVersionNumberException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidVersionNumberException"
 	}
 	return *e.ErrorCodeOverride
@@ -295,7 +295,7 @@ func (e *ResourceAlreadyExistsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceAlreadyExistsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceAlreadyExistsException"
 	}
 	return *e.ErrorCodeOverride
@@ -322,7 +322,7 @@ func (e *ResourceDependencyException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceDependencyException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceDependencyException"
 	}
 	return *e.ErrorCodeOverride
@@ -349,7 +349,7 @@ func (e *ResourceInUseException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceInUseException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceInUseException"
 	}
 	return *e.ErrorCodeOverride
@@ -375,7 +375,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -401,7 +401,7 @@ func (e *ServiceException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ServiceException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ServiceException"
 	}
 	return *e.ErrorCodeOverride
@@ -429,7 +429,7 @@ func (e *ServiceQuotaExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ServiceQuotaExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ServiceQuotaExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -455,7 +455,7 @@ func (e *ServiceUnavailableException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ServiceUnavailableException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ServiceUnavailableException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/inspector/types/errors.go b/service/inspector/types/errors.go
index 891619de1d7..5ef39cef43d 100644
--- a/service/inspector/types/errors.go
+++ b/service/inspector/types/errors.go
@@ -29,7 +29,7 @@ func (e *AccessDeniedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AccessDeniedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AccessDeniedException"
 	}
 	return *e.ErrorCodeOverride
@@ -60,7 +60,7 @@ func (e *AgentsAlreadyRunningAssessmentException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AgentsAlreadyRunningAssessmentException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AgentsAlreadyRunningAssessmentException"
 	}
 	return *e.ErrorCodeOverride
@@ -93,7 +93,7 @@ func (e *AssessmentRunInProgressException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AssessmentRunInProgressException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AssessmentRunInProgressException"
 	}
 	return *e.ErrorCodeOverride
@@ -121,7 +121,7 @@ func (e *InternalException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalException"
 	}
 	return *e.ErrorCodeOverride
@@ -151,7 +151,7 @@ func (e *InvalidCrossAccountRoleException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidCrossAccountRoleException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidCrossAccountRoleException"
 	}
 	return *e.ErrorCodeOverride
@@ -181,7 +181,7 @@ func (e *InvalidInputException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidInputException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidInputException"
 	}
 	return *e.ErrorCodeOverride
@@ -211,7 +211,7 @@ func (e *LimitExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *LimitExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "LimitExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -241,7 +241,7 @@ func (e *NoSuchEntityException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *NoSuchEntityException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "NoSuchEntityException"
 	}
 	return *e.ErrorCodeOverride
@@ -268,7 +268,7 @@ func (e *PreviewGenerationInProgressException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *PreviewGenerationInProgressException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "PreviewGenerationInProgressException"
 	}
 	return *e.ErrorCodeOverride
@@ -298,7 +298,7 @@ func (e *ServiceTemporarilyUnavailableException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ServiceTemporarilyUnavailableException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ServiceTemporarilyUnavailableException"
 	}
 	return *e.ErrorCodeOverride
@@ -332,7 +332,7 @@ func (e *UnsupportedFeatureException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *UnsupportedFeatureException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "UnsupportedFeatureException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/inspector2/types/errors.go b/service/inspector2/types/errors.go
index 0164993fa2f..9efd636e01c 100644
--- a/service/inspector2/types/errors.go
+++ b/service/inspector2/types/errors.go
@@ -26,7 +26,7 @@ func (e *AccessDeniedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AccessDeniedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AccessDeniedException"
 	}
 	return *e.ErrorCodeOverride
@@ -52,7 +52,7 @@ func (e *BadRequestException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *BadRequestException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "BadRequestException"
 	}
 	return *e.ErrorCodeOverride
@@ -81,7 +81,7 @@ func (e *ConflictException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ConflictException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ConflictException"
 	}
 	return *e.ErrorCodeOverride
@@ -110,7 +110,7 @@ func (e *InternalServerException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalServerException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalServerException"
 	}
 	return *e.ErrorCodeOverride
@@ -137,7 +137,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -167,7 +167,7 @@ func (e *ServiceQuotaExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ServiceQuotaExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ServiceQuotaExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -195,7 +195,7 @@ func (e *ThrottlingException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ThrottlingException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ThrottlingException"
 	}
 	return *e.ErrorCodeOverride
@@ -225,7 +225,7 @@ func (e *ValidationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ValidationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ValidationException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/iot/types/errors.go b/service/iot/types/errors.go
index 316c7c55b75..d50a40174e7 100644
--- a/service/iot/types/errors.go
+++ b/service/iot/types/errors.go
@@ -28,7 +28,7 @@ func (e *CertificateConflictException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *CertificateConflictException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "CertificateConflictException"
 	}
 	return *e.ErrorCodeOverride
@@ -54,7 +54,7 @@ func (e *CertificateStateException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *CertificateStateException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "CertificateStateException"
 	}
 	return *e.ErrorCodeOverride
@@ -80,7 +80,7 @@ func (e *CertificateValidationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *CertificateValidationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "CertificateValidationException"
 	}
 	return *e.ErrorCodeOverride
@@ -106,7 +106,7 @@ func (e *ConflictException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ConflictException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ConflictException"
 	}
 	return *e.ErrorCodeOverride
@@ -133,7 +133,7 @@ func (e *ConflictingResourceUpdateException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ConflictingResourceUpdateException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ConflictingResourceUpdateException"
 	}
 	return *e.ErrorCodeOverride
@@ -161,7 +161,7 @@ func (e *DeleteConflictException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DeleteConflictException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DeleteConflictException"
 	}
 	return *e.ErrorCodeOverride
@@ -187,7 +187,7 @@ func (e *IndexNotReadyException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *IndexNotReadyException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "IndexNotReadyException"
 	}
 	return *e.ErrorCodeOverride
@@ -213,7 +213,7 @@ func (e *InternalException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalException"
 	}
 	return *e.ErrorCodeOverride
@@ -239,7 +239,7 @@ func (e *InternalFailureException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalFailureException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalFailureException"
 	}
 	return *e.ErrorCodeOverride
@@ -266,7 +266,7 @@ func (e *InternalServerException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalServerException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalServerException"
 	}
 	return *e.ErrorCodeOverride
@@ -292,7 +292,7 @@ func (e *InvalidAggregationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidAggregationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidAggregationException"
 	}
 	return *e.ErrorCodeOverride
@@ -318,7 +318,7 @@ func (e *InvalidQueryException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidQueryException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidQueryException"
 	}
 	return *e.ErrorCodeOverride
@@ -344,7 +344,7 @@ func (e *InvalidRequestException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidRequestException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidRequestException"
 	}
 	return *e.ErrorCodeOverride
@@ -370,7 +370,7 @@ func (e *InvalidResponseException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidResponseException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidResponseException"
 	}
 	return *e.ErrorCodeOverride
@@ -397,7 +397,7 @@ func (e *InvalidStateTransitionException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidStateTransitionException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidStateTransitionException"
 	}
 	return *e.ErrorCodeOverride
@@ -423,7 +423,7 @@ func (e *LimitExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *LimitExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "LimitExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -449,7 +449,7 @@ func (e *MalformedPolicyException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *MalformedPolicyException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "MalformedPolicyException"
 	}
 	return *e.ErrorCodeOverride
@@ -475,7 +475,7 @@ func (e *NotConfiguredException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *NotConfiguredException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "NotConfiguredException"
 	}
 	return *e.ErrorCodeOverride
@@ -501,7 +501,7 @@ func (e *RegistrationCodeValidationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *RegistrationCodeValidationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "RegistrationCodeValidationException"
 	}
 	return *e.ErrorCodeOverride
@@ -532,7 +532,7 @@ func (e *ResourceAlreadyExistsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceAlreadyExistsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceAlreadyExistsException"
 	}
 	return *e.ErrorCodeOverride
@@ -558,7 +558,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -584,7 +584,7 @@ func (e *ResourceRegistrationFailureException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceRegistrationFailureException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceRegistrationFailureException"
 	}
 	return *e.ErrorCodeOverride
@@ -612,7 +612,7 @@ func (e *ServiceUnavailableException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ServiceUnavailableException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ServiceUnavailableException"
 	}
 	return *e.ErrorCodeOverride
@@ -638,7 +638,7 @@ func (e *SqlParseException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *SqlParseException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "SqlParseException"
 	}
 	return *e.ErrorCodeOverride
@@ -665,7 +665,7 @@ func (e *TaskAlreadyExistsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TaskAlreadyExistsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TaskAlreadyExistsException"
 	}
 	return *e.ErrorCodeOverride
@@ -691,7 +691,7 @@ func (e *ThrottlingException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ThrottlingException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ThrottlingException"
 	}
 	return *e.ErrorCodeOverride
@@ -718,7 +718,7 @@ func (e *TransferAlreadyCompletedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TransferAlreadyCompletedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TransferAlreadyCompletedException"
 	}
 	return *e.ErrorCodeOverride
@@ -745,7 +745,7 @@ func (e *TransferConflictException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TransferConflictException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TransferConflictException"
 	}
 	return *e.ErrorCodeOverride
@@ -771,7 +771,7 @@ func (e *UnauthorizedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *UnauthorizedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "UnauthorizedException"
 	}
 	return *e.ErrorCodeOverride
@@ -798,7 +798,7 @@ func (e *VersionConflictException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *VersionConflictException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "VersionConflictException"
 	}
 	return *e.ErrorCodeOverride
@@ -824,7 +824,7 @@ func (e *VersionsLimitExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *VersionsLimitExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "VersionsLimitExceededException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/iot1clickdevicesservice/types/errors.go b/service/iot1clickdevicesservice/types/errors.go
index 02ba170cfe2..61235d5bb97 100644
--- a/service/iot1clickdevicesservice/types/errors.go
+++ b/service/iot1clickdevicesservice/types/errors.go
@@ -27,7 +27,7 @@ func (e *ForbiddenException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ForbiddenException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ForbiddenException"
 	}
 	return *e.ErrorCodeOverride
@@ -54,7 +54,7 @@ func (e *InternalFailureException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalFailureException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalFailureException"
 	}
 	return *e.ErrorCodeOverride
@@ -81,7 +81,7 @@ func (e *InvalidRequestException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidRequestException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidRequestException"
 	}
 	return *e.ErrorCodeOverride
@@ -108,7 +108,7 @@ func (e *PreconditionFailedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *PreconditionFailedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "PreconditionFailedException"
 	}
 	return *e.ErrorCodeOverride
@@ -135,7 +135,7 @@ func (e *RangeNotSatisfiableException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *RangeNotSatisfiableException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "RangeNotSatisfiableException"
 	}
 	return *e.ErrorCodeOverride
@@ -162,7 +162,7 @@ func (e *ResourceConflictException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceConflictException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceConflictException"
 	}
 	return *e.ErrorCodeOverride
@@ -189,7 +189,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/iot1clickprojects/types/errors.go b/service/iot1clickprojects/types/errors.go
index 8a0860b3213..fafa22dabf9 100644
--- a/service/iot1clickprojects/types/errors.go
+++ b/service/iot1clickprojects/types/errors.go
@@ -27,7 +27,7 @@ func (e *InternalFailureException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalFailureException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalFailureException"
 	}
 	return *e.ErrorCodeOverride
@@ -54,7 +54,7 @@ func (e *InvalidRequestException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidRequestException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidRequestException"
 	}
 	return *e.ErrorCodeOverride
@@ -81,7 +81,7 @@ func (e *ResourceConflictException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceConflictException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceConflictException"
 	}
 	return *e.ErrorCodeOverride
@@ -108,7 +108,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -135,7 +135,7 @@ func (e *TooManyRequestsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TooManyRequestsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TooManyRequestsException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/iotanalytics/types/errors.go b/service/iotanalytics/types/errors.go
index a3ced429347..065a18f1c8e 100644
--- a/service/iotanalytics/types/errors.go
+++ b/service/iotanalytics/types/errors.go
@@ -26,7 +26,7 @@ func (e *InternalFailureException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalFailureException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalFailureException"
 	}
 	return *e.ErrorCodeOverride
@@ -52,7 +52,7 @@ func (e *InvalidRequestException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidRequestException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidRequestException"
 	}
 	return *e.ErrorCodeOverride
@@ -78,7 +78,7 @@ func (e *LimitExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *LimitExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "LimitExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -107,7 +107,7 @@ func (e *ResourceAlreadyExistsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceAlreadyExistsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceAlreadyExistsException"
 	}
 	return *e.ErrorCodeOverride
@@ -133,7 +133,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -159,7 +159,7 @@ func (e *ServiceUnavailableException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ServiceUnavailableException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ServiceUnavailableException"
 	}
 	return *e.ErrorCodeOverride
@@ -185,7 +185,7 @@ func (e *ThrottlingException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ThrottlingException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ThrottlingException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/iotdataplane/types/errors.go b/service/iotdataplane/types/errors.go
index 88b395d2b84..c93b20b2099 100644
--- a/service/iotdataplane/types/errors.go
+++ b/service/iotdataplane/types/errors.go
@@ -26,7 +26,7 @@ func (e *ConflictException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ConflictException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ConflictException"
 	}
 	return *e.ErrorCodeOverride
@@ -52,7 +52,7 @@ func (e *InternalFailureException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalFailureException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalFailureException"
 	}
 	return *e.ErrorCodeOverride
@@ -78,7 +78,7 @@ func (e *InvalidRequestException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidRequestException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidRequestException"
 	}
 	return *e.ErrorCodeOverride
@@ -104,7 +104,7 @@ func (e *MethodNotAllowedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *MethodNotAllowedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "MethodNotAllowedException"
 	}
 	return *e.ErrorCodeOverride
@@ -130,7 +130,7 @@ func (e *RequestEntityTooLargeException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *RequestEntityTooLargeException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "RequestEntityTooLargeException"
 	}
 	return *e.ErrorCodeOverride
@@ -156,7 +156,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -182,7 +182,7 @@ func (e *ServiceUnavailableException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ServiceUnavailableException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ServiceUnavailableException"
 	}
 	return *e.ErrorCodeOverride
@@ -208,7 +208,7 @@ func (e *ThrottlingException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ThrottlingException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ThrottlingException"
 	}
 	return *e.ErrorCodeOverride
@@ -234,7 +234,7 @@ func (e *UnauthorizedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *UnauthorizedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "UnauthorizedException"
 	}
 	return *e.ErrorCodeOverride
@@ -260,7 +260,7 @@ func (e *UnsupportedDocumentEncodingException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *UnsupportedDocumentEncodingException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "UnsupportedDocumentEncodingException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/iotdeviceadvisor/types/errors.go b/service/iotdeviceadvisor/types/errors.go
index 781b83f6061..22300c5fc6c 100644
--- a/service/iotdeviceadvisor/types/errors.go
+++ b/service/iotdeviceadvisor/types/errors.go
@@ -26,7 +26,7 @@ func (e *ConflictException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ConflictException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ConflictException"
 	}
 	return *e.ErrorCodeOverride
@@ -52,7 +52,7 @@ func (e *InternalServerException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalServerException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalServerException"
 	}
 	return *e.ErrorCodeOverride
@@ -78,7 +78,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -104,7 +104,7 @@ func (e *ValidationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ValidationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ValidationException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/iotevents/types/errors.go b/service/iotevents/types/errors.go
index c16be292e42..9ce80d19728 100644
--- a/service/iotevents/types/errors.go
+++ b/service/iotevents/types/errors.go
@@ -26,7 +26,7 @@ func (e *InternalFailureException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalFailureException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalFailureException"
 	}
 	return *e.ErrorCodeOverride
@@ -52,7 +52,7 @@ func (e *InvalidRequestException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidRequestException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidRequestException"
 	}
 	return *e.ErrorCodeOverride
@@ -78,7 +78,7 @@ func (e *LimitExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *LimitExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "LimitExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -107,7 +107,7 @@ func (e *ResourceAlreadyExistsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceAlreadyExistsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceAlreadyExistsException"
 	}
 	return *e.ErrorCodeOverride
@@ -133,7 +133,7 @@ func (e *ResourceInUseException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceInUseException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceInUseException"
 	}
 	return *e.ErrorCodeOverride
@@ -159,7 +159,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -185,7 +185,7 @@ func (e *ServiceUnavailableException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ServiceUnavailableException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ServiceUnavailableException"
 	}
 	return *e.ErrorCodeOverride
@@ -211,7 +211,7 @@ func (e *ThrottlingException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ThrottlingException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ThrottlingException"
 	}
 	return *e.ErrorCodeOverride
@@ -237,7 +237,7 @@ func (e *UnsupportedOperationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *UnsupportedOperationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "UnsupportedOperationException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/ioteventsdata/types/errors.go b/service/ioteventsdata/types/errors.go
index d4ddd8b525e..0bcdc49a6d3 100644
--- a/service/ioteventsdata/types/errors.go
+++ b/service/ioteventsdata/types/errors.go
@@ -26,7 +26,7 @@ func (e *InternalFailureException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalFailureException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalFailureException"
 	}
 	return *e.ErrorCodeOverride
@@ -52,7 +52,7 @@ func (e *InvalidRequestException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidRequestException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidRequestException"
 	}
 	return *e.ErrorCodeOverride
@@ -78,7 +78,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -104,7 +104,7 @@ func (e *ServiceUnavailableException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ServiceUnavailableException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ServiceUnavailableException"
 	}
 	return *e.ErrorCodeOverride
@@ -130,7 +130,7 @@ func (e *ThrottlingException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ThrottlingException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ThrottlingException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/iotfleethub/types/errors.go b/service/iotfleethub/types/errors.go
index 63bd88526ff..dc140b391f1 100644
--- a/service/iotfleethub/types/errors.go
+++ b/service/iotfleethub/types/errors.go
@@ -26,7 +26,7 @@ func (e *ConflictException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ConflictException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ConflictException"
 	}
 	return *e.ErrorCodeOverride
@@ -52,7 +52,7 @@ func (e *InternalFailureException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalFailureException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalFailureException"
 	}
 	return *e.ErrorCodeOverride
@@ -78,7 +78,7 @@ func (e *InvalidRequestException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidRequestException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidRequestException"
 	}
 	return *e.ErrorCodeOverride
@@ -104,7 +104,7 @@ func (e *LimitExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *LimitExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "LimitExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -130,7 +130,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -156,7 +156,7 @@ func (e *ThrottlingException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ThrottlingException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ThrottlingException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/iotfleetwise/types/errors.go b/service/iotfleetwise/types/errors.go
index 53978a2c986..5e12a031143 100644
--- a/service/iotfleetwise/types/errors.go
+++ b/service/iotfleetwise/types/errors.go
@@ -26,7 +26,7 @@ func (e *AccessDeniedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AccessDeniedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AccessDeniedException"
 	}
 	return *e.ErrorCodeOverride
@@ -56,7 +56,7 @@ func (e *ConflictException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ConflictException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ConflictException"
 	}
 	return *e.ErrorCodeOverride
@@ -86,7 +86,7 @@ func (e *DecoderManifestValidationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DecoderManifestValidationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DecoderManifestValidationException"
 	}
 	return *e.ErrorCodeOverride
@@ -116,7 +116,7 @@ func (e *InternalServerException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalServerException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalServerException"
 	}
 	return *e.ErrorCodeOverride
@@ -146,7 +146,7 @@ func (e *InvalidNodeException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidNodeException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidNodeException"
 	}
 	return *e.ErrorCodeOverride
@@ -174,7 +174,7 @@ func (e *InvalidSignalsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidSignalsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidSignalsException"
 	}
 	return *e.ErrorCodeOverride
@@ -203,7 +203,7 @@ func (e *LimitExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *LimitExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "LimitExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -232,7 +232,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -262,7 +262,7 @@ func (e *ThrottlingException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ThrottlingException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ThrottlingException"
 	}
 	return *e.ErrorCodeOverride
@@ -292,7 +292,7 @@ func (e *ValidationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ValidationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ValidationException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/iotjobsdataplane/types/errors.go b/service/iotjobsdataplane/types/errors.go
index 91f7a456961..89df5cacd2e 100644
--- a/service/iotjobsdataplane/types/errors.go
+++ b/service/iotjobsdataplane/types/errors.go
@@ -26,7 +26,7 @@ func (e *CertificateValidationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *CertificateValidationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "CertificateValidationException"
 	}
 	return *e.ErrorCodeOverride
@@ -54,7 +54,7 @@ func (e *InvalidRequestException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidRequestException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidRequestException"
 	}
 	return *e.ErrorCodeOverride
@@ -83,7 +83,7 @@ func (e *InvalidStateTransitionException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidStateTransitionException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidStateTransitionException"
 	}
 	return *e.ErrorCodeOverride
@@ -109,7 +109,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -135,7 +135,7 @@ func (e *ServiceUnavailableException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ServiceUnavailableException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ServiceUnavailableException"
 	}
 	return *e.ErrorCodeOverride
@@ -161,7 +161,7 @@ func (e *TerminalStateException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TerminalStateException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TerminalStateException"
 	}
 	return *e.ErrorCodeOverride
@@ -189,7 +189,7 @@ func (e *ThrottlingException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ThrottlingException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ThrottlingException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/iotroborunner/types/errors.go b/service/iotroborunner/types/errors.go
index 1139247dfa8..acac967ca78 100644
--- a/service/iotroborunner/types/errors.go
+++ b/service/iotroborunner/types/errors.go
@@ -26,7 +26,7 @@ func (e *AccessDeniedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AccessDeniedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AccessDeniedException"
 	}
 	return *e.ErrorCodeOverride
@@ -52,7 +52,7 @@ func (e *ConflictException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ConflictException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ConflictException"
 	}
 	return *e.ErrorCodeOverride
@@ -78,7 +78,7 @@ func (e *InternalServerException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalServerException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalServerException"
 	}
 	return *e.ErrorCodeOverride
@@ -104,7 +104,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -131,7 +131,7 @@ func (e *ServiceQuotaExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ServiceQuotaExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ServiceQuotaExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -157,7 +157,7 @@ func (e *ThrottlingException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ThrottlingException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ThrottlingException"
 	}
 	return *e.ErrorCodeOverride
@@ -183,7 +183,7 @@ func (e *ValidationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ValidationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ValidationException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/iotsecuretunneling/types/errors.go b/service/iotsecuretunneling/types/errors.go
index d40a919f5ca..11550f8524d 100644
--- a/service/iotsecuretunneling/types/errors.go
+++ b/service/iotsecuretunneling/types/errors.go
@@ -26,7 +26,7 @@ func (e *LimitExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *LimitExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "LimitExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -52,7 +52,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/iotsitewise/types/errors.go b/service/iotsitewise/types/errors.go
index f6f7653f2bb..6d2b7b696f2 100644
--- a/service/iotsitewise/types/errors.go
+++ b/service/iotsitewise/types/errors.go
@@ -30,7 +30,7 @@ func (e *ConflictingOperationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ConflictingOperationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ConflictingOperationException"
 	}
 	return *e.ErrorCodeOverride
@@ -56,7 +56,7 @@ func (e *InternalFailureException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalFailureException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalFailureException"
 	}
 	return *e.ErrorCodeOverride
@@ -83,7 +83,7 @@ func (e *InvalidRequestException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidRequestException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidRequestException"
 	}
 	return *e.ErrorCodeOverride
@@ -114,7 +114,7 @@ func (e *LimitExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *LimitExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "LimitExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -143,7 +143,7 @@ func (e *ResourceAlreadyExistsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceAlreadyExistsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceAlreadyExistsException"
 	}
 	return *e.ErrorCodeOverride
@@ -169,7 +169,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -195,7 +195,7 @@ func (e *ServiceUnavailableException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ServiceUnavailableException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ServiceUnavailableException"
 	}
 	return *e.ErrorCodeOverride
@@ -225,7 +225,7 @@ func (e *ThrottlingException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ThrottlingException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ThrottlingException"
 	}
 	return *e.ErrorCodeOverride
@@ -256,7 +256,7 @@ func (e *TooManyTagsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TooManyTagsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TooManyTagsException"
 	}
 	return *e.ErrorCodeOverride
@@ -282,7 +282,7 @@ func (e *UnauthorizedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *UnauthorizedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "UnauthorizedException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/iotthingsgraph/types/errors.go b/service/iotthingsgraph/types/errors.go
index c7c166c578a..b742cfc61f7 100644
--- a/service/iotthingsgraph/types/errors.go
+++ b/service/iotthingsgraph/types/errors.go
@@ -25,7 +25,7 @@ func (e *InternalFailureException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalFailureException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalFailureException"
 	}
 	return *e.ErrorCodeOverride
@@ -50,7 +50,7 @@ func (e *InvalidRequestException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidRequestException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidRequestException"
 	}
 	return *e.ErrorCodeOverride
@@ -75,7 +75,7 @@ func (e *LimitExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *LimitExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "LimitExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -100,7 +100,7 @@ func (e *ResourceAlreadyExistsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceAlreadyExistsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceAlreadyExistsException"
 	}
 	return *e.ErrorCodeOverride
@@ -125,7 +125,7 @@ func (e *ResourceInUseException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceInUseException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceInUseException"
 	}
 	return *e.ErrorCodeOverride
@@ -150,7 +150,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -175,7 +175,7 @@ func (e *ThrottlingException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ThrottlingException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ThrottlingException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/iottwinmaker/types/errors.go b/service/iottwinmaker/types/errors.go
index 627f504e433..cf36da6f6c1 100644
--- a/service/iottwinmaker/types/errors.go
+++ b/service/iottwinmaker/types/errors.go
@@ -26,7 +26,7 @@ func (e *AccessDeniedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AccessDeniedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AccessDeniedException"
 	}
 	return *e.ErrorCodeOverride
@@ -52,7 +52,7 @@ func (e *ConflictException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ConflictException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ConflictException"
 	}
 	return *e.ErrorCodeOverride
@@ -78,7 +78,7 @@ func (e *ConnectorFailureException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ConnectorFailureException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ConnectorFailureException"
 	}
 	return *e.ErrorCodeOverride
@@ -104,7 +104,7 @@ func (e *ConnectorTimeoutException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ConnectorTimeoutException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ConnectorTimeoutException"
 	}
 	return *e.ErrorCodeOverride
@@ -130,7 +130,7 @@ func (e *InternalServerException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalServerException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalServerException"
 	}
 	return *e.ErrorCodeOverride
@@ -156,7 +156,7 @@ func (e *QueryTimeoutException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *QueryTimeoutException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "QueryTimeoutException"
 	}
 	return *e.ErrorCodeOverride
@@ -182,7 +182,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -208,7 +208,7 @@ func (e *ServiceQuotaExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ServiceQuotaExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ServiceQuotaExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -234,7 +234,7 @@ func (e *ThrottlingException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ThrottlingException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ThrottlingException"
 	}
 	return *e.ErrorCodeOverride
@@ -260,7 +260,7 @@ func (e *TooManyTagsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TooManyTagsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TooManyTagsException"
 	}
 	return *e.ErrorCodeOverride
@@ -286,7 +286,7 @@ func (e *ValidationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ValidationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ValidationException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/iotwireless/types/errors.go b/service/iotwireless/types/errors.go
index c9931b6676b..9d3e4bd73bb 100644
--- a/service/iotwireless/types/errors.go
+++ b/service/iotwireless/types/errors.go
@@ -26,7 +26,7 @@ func (e *AccessDeniedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AccessDeniedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AccessDeniedException"
 	}
 	return *e.ErrorCodeOverride
@@ -55,7 +55,7 @@ func (e *ConflictException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ConflictException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ConflictException"
 	}
 	return *e.ErrorCodeOverride
@@ -81,7 +81,7 @@ func (e *InternalServerException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalServerException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalServerException"
 	}
 	return *e.ErrorCodeOverride
@@ -110,7 +110,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -136,7 +136,7 @@ func (e *ThrottlingException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ThrottlingException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ThrottlingException"
 	}
 	return *e.ErrorCodeOverride
@@ -164,7 +164,7 @@ func (e *TooManyTagsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TooManyTagsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TooManyTagsException"
 	}
 	return *e.ErrorCodeOverride
@@ -190,7 +190,7 @@ func (e *ValidationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ValidationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ValidationException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/ivs/types/errors.go b/service/ivs/types/errors.go
index 6d94f5558e8..8c731cdd7b0 100644
--- a/service/ivs/types/errors.go
+++ b/service/ivs/types/errors.go
@@ -27,7 +27,7 @@ func (e *AccessDeniedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AccessDeniedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AccessDeniedException"
 	}
 	return *e.ErrorCodeOverride
@@ -54,7 +54,7 @@ func (e *ChannelNotBroadcasting) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ChannelNotBroadcasting) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ChannelNotBroadcasting"
 	}
 	return *e.ErrorCodeOverride
@@ -81,7 +81,7 @@ func (e *ConflictException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ConflictException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ConflictException"
 	}
 	return *e.ErrorCodeOverride
@@ -108,7 +108,7 @@ func (e *InternalServerException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalServerException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalServerException"
 	}
 	return *e.ErrorCodeOverride
@@ -135,7 +135,7 @@ func (e *PendingVerification) ErrorMessage() string {
 	return *e.Message
 }
 func (e *PendingVerification) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "PendingVerification"
 	}
 	return *e.ErrorCodeOverride
@@ -162,7 +162,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -189,7 +189,7 @@ func (e *ServiceQuotaExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ServiceQuotaExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ServiceQuotaExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -216,7 +216,7 @@ func (e *StreamUnavailable) ErrorMessage() string {
 	return *e.Message
 }
 func (e *StreamUnavailable) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "StreamUnavailable"
 	}
 	return *e.ErrorCodeOverride
@@ -243,7 +243,7 @@ func (e *ThrottlingException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ThrottlingException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ThrottlingException"
 	}
 	return *e.ErrorCodeOverride
@@ -270,7 +270,7 @@ func (e *ValidationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ValidationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ValidationException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/ivschat/types/errors.go b/service/ivschat/types/errors.go
index c9b048ff96f..21e1a52cc8c 100644
--- a/service/ivschat/types/errors.go
+++ b/service/ivschat/types/errors.go
@@ -25,7 +25,7 @@ func (e *AccessDeniedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AccessDeniedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AccessDeniedException"
 	}
 	return *e.ErrorCodeOverride
@@ -53,7 +53,7 @@ func (e *ConflictException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ConflictException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ConflictException"
 	}
 	return *e.ErrorCodeOverride
@@ -78,7 +78,7 @@ func (e *InternalServerException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalServerException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalServerException"
 	}
 	return *e.ErrorCodeOverride
@@ -103,7 +103,7 @@ func (e *PendingVerification) ErrorMessage() string {
 	return *e.Message
 }
 func (e *PendingVerification) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "PendingVerification"
 	}
 	return *e.ErrorCodeOverride
@@ -131,7 +131,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -160,7 +160,7 @@ func (e *ServiceQuotaExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ServiceQuotaExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ServiceQuotaExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -189,7 +189,7 @@ func (e *ThrottlingException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ThrottlingException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ThrottlingException"
 	}
 	return *e.ErrorCodeOverride
@@ -217,7 +217,7 @@ func (e *ValidationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ValidationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ValidationException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/kafka/types/errors.go b/service/kafka/types/errors.go
index f88d7573603..14230c70648 100644
--- a/service/kafka/types/errors.go
+++ b/service/kafka/types/errors.go
@@ -28,7 +28,7 @@ func (e *BadRequestException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *BadRequestException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "BadRequestException"
 	}
 	return *e.ErrorCodeOverride
@@ -56,7 +56,7 @@ func (e *ConflictException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ConflictException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ConflictException"
 	}
 	return *e.ErrorCodeOverride
@@ -84,7 +84,7 @@ func (e *ForbiddenException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ForbiddenException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ForbiddenException"
 	}
 	return *e.ErrorCodeOverride
@@ -112,7 +112,7 @@ func (e *InternalServerErrorException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalServerErrorException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalServerErrorException"
 	}
 	return *e.ErrorCodeOverride
@@ -140,7 +140,7 @@ func (e *NotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *NotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "NotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -168,7 +168,7 @@ func (e *ServiceUnavailableException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ServiceUnavailableException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ServiceUnavailableException"
 	}
 	return *e.ErrorCodeOverride
@@ -196,7 +196,7 @@ func (e *TooManyRequestsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TooManyRequestsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TooManyRequestsException"
 	}
 	return *e.ErrorCodeOverride
@@ -224,7 +224,7 @@ func (e *UnauthorizedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *UnauthorizedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "UnauthorizedException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/kafkaconnect/types/errors.go b/service/kafkaconnect/types/errors.go
index 0b2ea8c5af7..b3d643e9de2 100644
--- a/service/kafkaconnect/types/errors.go
+++ b/service/kafkaconnect/types/errors.go
@@ -27,7 +27,7 @@ func (e *BadRequestException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *BadRequestException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "BadRequestException"
 	}
 	return *e.ErrorCodeOverride
@@ -54,7 +54,7 @@ func (e *ConflictException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ConflictException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ConflictException"
 	}
 	return *e.ErrorCodeOverride
@@ -81,7 +81,7 @@ func (e *ForbiddenException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ForbiddenException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ForbiddenException"
 	}
 	return *e.ErrorCodeOverride
@@ -108,7 +108,7 @@ func (e *InternalServerErrorException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalServerErrorException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalServerErrorException"
 	}
 	return *e.ErrorCodeOverride
@@ -135,7 +135,7 @@ func (e *NotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *NotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "NotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -162,7 +162,7 @@ func (e *ServiceUnavailableException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ServiceUnavailableException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ServiceUnavailableException"
 	}
 	return *e.ErrorCodeOverride
@@ -188,7 +188,7 @@ func (e *TooManyRequestsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TooManyRequestsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TooManyRequestsException"
 	}
 	return *e.ErrorCodeOverride
@@ -215,7 +215,7 @@ func (e *UnauthorizedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *UnauthorizedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "UnauthorizedException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/kendra/types/errors.go b/service/kendra/types/errors.go
index 88aa5a38581..a9cb3fbc1f7 100644
--- a/service/kendra/types/errors.go
+++ b/service/kendra/types/errors.go
@@ -27,7 +27,7 @@ func (e *AccessDeniedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AccessDeniedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AccessDeniedException"
 	}
 	return *e.ErrorCodeOverride
@@ -54,7 +54,7 @@ func (e *ConflictException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ConflictException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ConflictException"
 	}
 	return *e.ErrorCodeOverride
@@ -82,7 +82,7 @@ func (e *InternalServerException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalServerException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalServerException"
 	}
 	return *e.ErrorCodeOverride
@@ -109,7 +109,7 @@ func (e *InvalidRequestException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidRequestException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidRequestException"
 	}
 	return *e.ErrorCodeOverride
@@ -136,7 +136,7 @@ func (e *ResourceAlreadyExistException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceAlreadyExistException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceAlreadyExistException"
 	}
 	return *e.ErrorCodeOverride
@@ -163,7 +163,7 @@ func (e *ResourceInUseException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceInUseException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceInUseException"
 	}
 	return *e.ErrorCodeOverride
@@ -190,7 +190,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -217,7 +217,7 @@ func (e *ResourceUnavailableException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceUnavailableException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceUnavailableException"
 	}
 	return *e.ErrorCodeOverride
@@ -246,7 +246,7 @@ func (e *ServiceQuotaExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ServiceQuotaExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ServiceQuotaExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -273,7 +273,7 @@ func (e *ThrottlingException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ThrottlingException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ThrottlingException"
 	}
 	return *e.ErrorCodeOverride
@@ -300,7 +300,7 @@ func (e *ValidationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ValidationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ValidationException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/kendraranking/types/errors.go b/service/kendraranking/types/errors.go
index 2347af769e3..531f92cac1e 100644
--- a/service/kendraranking/types/errors.go
+++ b/service/kendraranking/types/errors.go
@@ -27,7 +27,7 @@ func (e *AccessDeniedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AccessDeniedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AccessDeniedException"
 	}
 	return *e.ErrorCodeOverride
@@ -54,7 +54,7 @@ func (e *ConflictException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ConflictException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ConflictException"
 	}
 	return *e.ErrorCodeOverride
@@ -82,7 +82,7 @@ func (e *InternalServerException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalServerException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalServerException"
 	}
 	return *e.ErrorCodeOverride
@@ -109,7 +109,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -136,7 +136,7 @@ func (e *ResourceUnavailableException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceUnavailableException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceUnavailableException"
 	}
 	return *e.ErrorCodeOverride
@@ -166,7 +166,7 @@ func (e *ServiceQuotaExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ServiceQuotaExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ServiceQuotaExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -193,7 +193,7 @@ func (e *ThrottlingException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ThrottlingException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ThrottlingException"
 	}
 	return *e.ErrorCodeOverride
@@ -220,7 +220,7 @@ func (e *ValidationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ValidationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ValidationException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/keyspaces/types/errors.go b/service/keyspaces/types/errors.go
index a1f9b708f92..194daa468d7 100644
--- a/service/keyspaces/types/errors.go
+++ b/service/keyspaces/types/errors.go
@@ -26,7 +26,7 @@ func (e *AccessDeniedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AccessDeniedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AccessDeniedException"
 	}
 	return *e.ErrorCodeOverride
@@ -54,7 +54,7 @@ func (e *ConflictException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ConflictException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ConflictException"
 	}
 	return *e.ErrorCodeOverride
@@ -81,7 +81,7 @@ func (e *InternalServerException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalServerException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalServerException"
 	}
 	return *e.ErrorCodeOverride
@@ -110,7 +110,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -139,7 +139,7 @@ func (e *ServiceQuotaExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ServiceQuotaExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ServiceQuotaExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -165,7 +165,7 @@ func (e *ValidationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ValidationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ValidationException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/kinesis/types/errors.go b/service/kinesis/types/errors.go
index 097267554db..448f1708a1a 100644
--- a/service/kinesis/types/errors.go
+++ b/service/kinesis/types/errors.go
@@ -27,7 +27,7 @@ func (e *AccessDeniedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AccessDeniedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AccessDeniedException"
 	}
 	return *e.ErrorCodeOverride
@@ -53,7 +53,7 @@ func (e *ExpiredIteratorException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ExpiredIteratorException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ExpiredIteratorException"
 	}
 	return *e.ErrorCodeOverride
@@ -79,7 +79,7 @@ func (e *ExpiredNextTokenException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ExpiredNextTokenException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ExpiredNextTokenException"
 	}
 	return *e.ErrorCodeOverride
@@ -106,7 +106,7 @@ func (e *InternalFailureException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalFailureException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalFailureException"
 	}
 	return *e.ErrorCodeOverride
@@ -133,7 +133,7 @@ func (e *InvalidArgumentException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidArgumentException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidArgumentException"
 	}
 	return *e.ErrorCodeOverride
@@ -160,7 +160,7 @@ func (e *KMSAccessDeniedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *KMSAccessDeniedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "KMSAccessDeniedException"
 	}
 	return *e.ErrorCodeOverride
@@ -187,7 +187,7 @@ func (e *KMSDisabledException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *KMSDisabledException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "KMSDisabledException"
 	}
 	return *e.ErrorCodeOverride
@@ -217,7 +217,7 @@ func (e *KMSInvalidStateException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *KMSInvalidStateException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "KMSInvalidStateException"
 	}
 	return *e.ErrorCodeOverride
@@ -244,7 +244,7 @@ func (e *KMSNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *KMSNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "KMSNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -270,7 +270,7 @@ func (e *KMSOptInRequired) ErrorMessage() string {
 	return *e.Message
 }
 func (e *KMSOptInRequired) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "KMSOptInRequired"
 	}
 	return *e.ErrorCodeOverride
@@ -299,7 +299,7 @@ func (e *KMSThrottlingException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *KMSThrottlingException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "KMSThrottlingException"
 	}
 	return *e.ErrorCodeOverride
@@ -326,7 +326,7 @@ func (e *LimitExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *LimitExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "LimitExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -359,7 +359,7 @@ func (e *ProvisionedThroughputExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ProvisionedThroughputExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ProvisionedThroughputExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -388,7 +388,7 @@ func (e *ResourceInUseException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceInUseException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceInUseException"
 	}
 	return *e.ErrorCodeOverride
@@ -415,7 +415,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -443,7 +443,7 @@ func (e *ValidationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ValidationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ValidationException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/kinesisanalytics/types/errors.go b/service/kinesisanalytics/types/errors.go
index 74a0b66866c..ff1ac0a407b 100644
--- a/service/kinesisanalytics/types/errors.go
+++ b/service/kinesisanalytics/types/errors.go
@@ -27,7 +27,7 @@ func (e *CodeValidationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *CodeValidationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "CodeValidationException"
 	}
 	return *e.ErrorCodeOverride
@@ -55,7 +55,7 @@ func (e *ConcurrentModificationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ConcurrentModificationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ConcurrentModificationException"
 	}
 	return *e.ErrorCodeOverride
@@ -81,7 +81,7 @@ func (e *InvalidApplicationConfigurationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidApplicationConfigurationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidApplicationConfigurationException"
 	}
 	return *e.ErrorCodeOverride
@@ -109,7 +109,7 @@ func (e *InvalidArgumentException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidArgumentException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidArgumentException"
 	}
 	return *e.ErrorCodeOverride
@@ -135,7 +135,7 @@ func (e *LimitExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *LimitExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "LimitExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -161,7 +161,7 @@ func (e *ResourceInUseException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceInUseException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceInUseException"
 	}
 	return *e.ErrorCodeOverride
@@ -187,7 +187,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -217,7 +217,7 @@ func (e *ResourceProvisionedThroughputExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceProvisionedThroughputExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceProvisionedThroughputExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -245,7 +245,7 @@ func (e *ServiceUnavailableException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ServiceUnavailableException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ServiceUnavailableException"
 	}
 	return *e.ErrorCodeOverride
@@ -273,7 +273,7 @@ func (e *TooManyTagsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TooManyTagsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TooManyTagsException"
 	}
 	return *e.ErrorCodeOverride
@@ -303,7 +303,7 @@ func (e *UnableToDetectSchemaException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *UnableToDetectSchemaException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "UnableToDetectSchemaException"
 	}
 	return *e.ErrorCodeOverride
@@ -330,7 +330,7 @@ func (e *UnsupportedOperationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *UnsupportedOperationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "UnsupportedOperationException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/kinesisanalyticsv2/types/errors.go b/service/kinesisanalyticsv2/types/errors.go
index a1a1ca5e402..8c6161c7045 100644
--- a/service/kinesisanalyticsv2/types/errors.go
+++ b/service/kinesisanalyticsv2/types/errors.go
@@ -27,7 +27,7 @@ func (e *CodeValidationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *CodeValidationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "CodeValidationException"
 	}
 	return *e.ErrorCodeOverride
@@ -55,7 +55,7 @@ func (e *ConcurrentModificationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ConcurrentModificationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ConcurrentModificationException"
 	}
 	return *e.ErrorCodeOverride
@@ -81,7 +81,7 @@ func (e *InvalidApplicationConfigurationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidApplicationConfigurationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidApplicationConfigurationException"
 	}
 	return *e.ErrorCodeOverride
@@ -109,7 +109,7 @@ func (e *InvalidArgumentException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidArgumentException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidArgumentException"
 	}
 	return *e.ErrorCodeOverride
@@ -135,7 +135,7 @@ func (e *InvalidRequestException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidRequestException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidRequestException"
 	}
 	return *e.ErrorCodeOverride
@@ -161,7 +161,7 @@ func (e *LimitExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *LimitExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "LimitExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -187,7 +187,7 @@ func (e *ResourceInUseException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceInUseException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceInUseException"
 	}
 	return *e.ErrorCodeOverride
@@ -213,7 +213,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -243,7 +243,7 @@ func (e *ResourceProvisionedThroughputExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceProvisionedThroughputExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceProvisionedThroughputExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -271,7 +271,7 @@ func (e *ServiceUnavailableException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ServiceUnavailableException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ServiceUnavailableException"
 	}
 	return *e.ErrorCodeOverride
@@ -299,7 +299,7 @@ func (e *TooManyTagsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TooManyTagsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TooManyTagsException"
 	}
 	return *e.ErrorCodeOverride
@@ -329,7 +329,7 @@ func (e *UnableToDetectSchemaException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *UnableToDetectSchemaException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "UnableToDetectSchemaException"
 	}
 	return *e.ErrorCodeOverride
@@ -356,7 +356,7 @@ func (e *UnsupportedOperationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *UnsupportedOperationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "UnsupportedOperationException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/kinesisvideo/types/errors.go b/service/kinesisvideo/types/errors.go
index d2c2a99cb3b..c41bef4b585 100644
--- a/service/kinesisvideo/types/errors.go
+++ b/service/kinesisvideo/types/errors.go
@@ -26,7 +26,7 @@ func (e *AccessDeniedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AccessDeniedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AccessDeniedException"
 	}
 	return *e.ErrorCodeOverride
@@ -53,7 +53,7 @@ func (e *AccountChannelLimitExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AccountChannelLimitExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AccountChannelLimitExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -81,7 +81,7 @@ func (e *AccountStreamLimitExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AccountStreamLimitExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AccountStreamLimitExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -110,7 +110,7 @@ func (e *ClientLimitExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ClientLimitExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ClientLimitExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -136,7 +136,7 @@ func (e *DeviceStreamLimitExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DeviceStreamLimitExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DeviceStreamLimitExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -164,7 +164,7 @@ func (e *InvalidArgumentException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidArgumentException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidArgumentException"
 	}
 	return *e.ErrorCodeOverride
@@ -190,7 +190,7 @@ func (e *InvalidDeviceException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidDeviceException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidDeviceException"
 	}
 	return *e.ErrorCodeOverride
@@ -216,7 +216,7 @@ func (e *InvalidResourceFormatException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidResourceFormatException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidResourceFormatException"
 	}
 	return *e.ErrorCodeOverride
@@ -242,7 +242,7 @@ func (e *NoDataRetentionException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *NoDataRetentionException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "NoDataRetentionException"
 	}
 	return *e.ErrorCodeOverride
@@ -268,7 +268,7 @@ func (e *NotAuthorizedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *NotAuthorizedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "NotAuthorizedException"
 	}
 	return *e.ErrorCodeOverride
@@ -306,7 +306,7 @@ func (e *ResourceInUseException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceInUseException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceInUseException"
 	}
 	return *e.ErrorCodeOverride
@@ -332,7 +332,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -359,7 +359,7 @@ func (e *StreamEdgeConfigurationNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *StreamEdgeConfigurationNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "StreamEdgeConfigurationNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -388,7 +388,7 @@ func (e *TagsPerResourceExceededLimitException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TagsPerResourceExceededLimitException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TagsPerResourceExceededLimitException"
 	}
 	return *e.ErrorCodeOverride
@@ -419,7 +419,7 @@ func (e *VersionMismatchException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *VersionMismatchException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "VersionMismatchException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/kinesisvideoarchivedmedia/types/errors.go b/service/kinesisvideoarchivedmedia/types/errors.go
index a822f603365..e3e6b462f87 100644
--- a/service/kinesisvideoarchivedmedia/types/errors.go
+++ b/service/kinesisvideoarchivedmedia/types/errors.go
@@ -29,7 +29,7 @@ func (e *ClientLimitExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ClientLimitExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ClientLimitExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -56,7 +56,7 @@ func (e *InvalidArgumentException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidArgumentException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidArgumentException"
 	}
 	return *e.ErrorCodeOverride
@@ -83,7 +83,7 @@ func (e *InvalidCodecPrivateDataException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidCodecPrivateDataException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidCodecPrivateDataException"
 	}
 	return *e.ErrorCodeOverride
@@ -110,7 +110,7 @@ func (e *InvalidMediaFrameException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidMediaFrameException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidMediaFrameException"
 	}
 	return *e.ErrorCodeOverride
@@ -136,7 +136,7 @@ func (e *MissingCodecPrivateDataException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *MissingCodecPrivateDataException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "MissingCodecPrivateDataException"
 	}
 	return *e.ErrorCodeOverride
@@ -163,7 +163,7 @@ func (e *NoDataRetentionException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *NoDataRetentionException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "NoDataRetentionException"
 	}
 	return *e.ErrorCodeOverride
@@ -190,7 +190,7 @@ func (e *NotAuthorizedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *NotAuthorizedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "NotAuthorizedException"
 	}
 	return *e.ErrorCodeOverride
@@ -221,7 +221,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -250,7 +250,7 @@ func (e *UnsupportedStreamMediaTypeException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *UnsupportedStreamMediaTypeException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "UnsupportedStreamMediaTypeException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/kinesisvideomedia/types/errors.go b/service/kinesisvideomedia/types/errors.go
index 7749368f3c6..ede94082e0d 100644
--- a/service/kinesisvideomedia/types/errors.go
+++ b/service/kinesisvideomedia/types/errors.go
@@ -27,7 +27,7 @@ func (e *ClientLimitExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ClientLimitExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ClientLimitExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -54,7 +54,7 @@ func (e *ConnectionLimitExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ConnectionLimitExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ConnectionLimitExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -80,7 +80,7 @@ func (e *InvalidArgumentException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidArgumentException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidArgumentException"
 	}
 	return *e.ErrorCodeOverride
@@ -109,7 +109,7 @@ func (e *InvalidEndpointException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidEndpointException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidEndpointException"
 	}
 	return *e.ErrorCodeOverride
@@ -136,7 +136,7 @@ func (e *NotAuthorizedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *NotAuthorizedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "NotAuthorizedException"
 	}
 	return *e.ErrorCodeOverride
@@ -162,7 +162,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/kinesisvideosignaling/types/errors.go b/service/kinesisvideosignaling/types/errors.go
index fc7d1589e58..2d03e490adc 100644
--- a/service/kinesisvideosignaling/types/errors.go
+++ b/service/kinesisvideosignaling/types/errors.go
@@ -27,7 +27,7 @@ func (e *ClientLimitExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ClientLimitExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ClientLimitExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -53,7 +53,7 @@ func (e *InvalidArgumentException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidArgumentException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidArgumentException"
 	}
 	return *e.ErrorCodeOverride
@@ -79,7 +79,7 @@ func (e *InvalidClientException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidClientException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidClientException"
 	}
 	return *e.ErrorCodeOverride
@@ -105,7 +105,7 @@ func (e *NotAuthorizedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *NotAuthorizedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "NotAuthorizedException"
 	}
 	return *e.ErrorCodeOverride
@@ -131,7 +131,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -159,7 +159,7 @@ func (e *SessionExpiredException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *SessionExpiredException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "SessionExpiredException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/kinesisvideowebrtcstorage/types/errors.go b/service/kinesisvideowebrtcstorage/types/errors.go
index 34d1df5c577..91195890163 100644
--- a/service/kinesisvideowebrtcstorage/types/errors.go
+++ b/service/kinesisvideowebrtcstorage/types/errors.go
@@ -26,7 +26,7 @@ func (e *AccessDeniedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AccessDeniedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AccessDeniedException"
 	}
 	return *e.ErrorCodeOverride
@@ -53,7 +53,7 @@ func (e *ClientLimitExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ClientLimitExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ClientLimitExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -79,7 +79,7 @@ func (e *InvalidArgumentException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidArgumentException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidArgumentException"
 	}
 	return *e.ErrorCodeOverride
@@ -105,7 +105,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/kms/types/errors.go b/service/kms/types/errors.go
index 07e8e4929fc..a025590ad6b 100644
--- a/service/kms/types/errors.go
+++ b/service/kms/types/errors.go
@@ -27,7 +27,7 @@ func (e *AlreadyExistsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AlreadyExistsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AlreadyExistsException"
 	}
 	return *e.ErrorCodeOverride
@@ -60,7 +60,7 @@ func (e *CloudHsmClusterInUseException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *CloudHsmClusterInUseException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "CloudHsmClusterInUseException"
 	}
 	return *e.ErrorCodeOverride
@@ -122,7 +122,7 @@ func (e *CloudHsmClusterInvalidConfigurationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *CloudHsmClusterInvalidConfigurationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "CloudHsmClusterInvalidConfigurationException"
 	}
 	return *e.ErrorCodeOverride
@@ -154,7 +154,7 @@ func (e *CloudHsmClusterNotActiveException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *CloudHsmClusterNotActiveException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "CloudHsmClusterNotActiveException"
 	}
 	return *e.ErrorCodeOverride
@@ -181,7 +181,7 @@ func (e *CloudHsmClusterNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *CloudHsmClusterNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "CloudHsmClusterNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -216,7 +216,7 @@ func (e *CloudHsmClusterNotRelatedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *CloudHsmClusterNotRelatedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "CloudHsmClusterNotRelatedException"
 	}
 	return *e.ErrorCodeOverride
@@ -247,7 +247,7 @@ func (e *CustomKeyStoreHasCMKsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *CustomKeyStoreHasCMKsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "CustomKeyStoreHasCMKsException"
 	}
 	return *e.ErrorCodeOverride
@@ -300,7 +300,7 @@ func (e *CustomKeyStoreInvalidStateException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *CustomKeyStoreInvalidStateException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "CustomKeyStoreInvalidStateException"
 	}
 	return *e.ErrorCodeOverride
@@ -330,7 +330,7 @@ func (e *CustomKeyStoreNameInUseException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *CustomKeyStoreNameInUseException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "CustomKeyStoreNameInUseException"
 	}
 	return *e.ErrorCodeOverride
@@ -357,7 +357,7 @@ func (e *CustomKeyStoreNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *CustomKeyStoreNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "CustomKeyStoreNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -384,7 +384,7 @@ func (e *DependencyTimeoutException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DependencyTimeoutException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DependencyTimeoutException"
 	}
 	return *e.ErrorCodeOverride
@@ -410,7 +410,7 @@ func (e *DisabledException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DisabledException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DisabledException"
 	}
 	return *e.ErrorCodeOverride
@@ -438,7 +438,7 @@ func (e *ExpiredImportTokenException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ExpiredImportTokenException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ExpiredImportTokenException"
 	}
 	return *e.ErrorCodeOverride
@@ -466,7 +466,7 @@ func (e *IncorrectKeyException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *IncorrectKeyException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "IncorrectKeyException"
 	}
 	return *e.ErrorCodeOverride
@@ -494,7 +494,7 @@ func (e *IncorrectKeyMaterialException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *IncorrectKeyMaterialException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "IncorrectKeyMaterialException"
 	}
 	return *e.ErrorCodeOverride
@@ -524,7 +524,7 @@ func (e *IncorrectTrustAnchorException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *IncorrectTrustAnchorException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "IncorrectTrustAnchorException"
 	}
 	return *e.ErrorCodeOverride
@@ -550,7 +550,7 @@ func (e *InvalidAliasNameException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidAliasNameException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidAliasNameException"
 	}
 	return *e.ErrorCodeOverride
@@ -577,7 +577,7 @@ func (e *InvalidArnException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidArnException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidArnException"
 	}
 	return *e.ErrorCodeOverride
@@ -607,7 +607,7 @@ func (e *InvalidCiphertextException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidCiphertextException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidCiphertextException"
 	}
 	return *e.ErrorCodeOverride
@@ -633,7 +633,7 @@ func (e *InvalidGrantIdException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidGrantIdException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidGrantIdException"
 	}
 	return *e.ErrorCodeOverride
@@ -659,7 +659,7 @@ func (e *InvalidGrantTokenException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidGrantTokenException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidGrantTokenException"
 	}
 	return *e.ErrorCodeOverride
@@ -686,7 +686,7 @@ func (e *InvalidImportTokenException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidImportTokenException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidImportTokenException"
 	}
 	return *e.ErrorCodeOverride
@@ -727,7 +727,7 @@ func (e *InvalidKeyUsageException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidKeyUsageException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidKeyUsageException"
 	}
 	return *e.ErrorCodeOverride
@@ -754,7 +754,7 @@ func (e *InvalidMarkerException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidMarkerException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidMarkerException"
 	}
 	return *e.ErrorCodeOverride
@@ -781,7 +781,7 @@ func (e *KeyUnavailableException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *KeyUnavailableException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "KeyUnavailableException"
 	}
 	return *e.ErrorCodeOverride
@@ -808,7 +808,7 @@ func (e *KMSInternalException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *KMSInternalException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "KMSInternalException"
 	}
 	return *e.ErrorCodeOverride
@@ -836,7 +836,7 @@ func (e *KMSInvalidMacException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *KMSInvalidMacException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "KMSInvalidMacException"
 	}
 	return *e.ErrorCodeOverride
@@ -864,7 +864,7 @@ func (e *KMSInvalidSignatureException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *KMSInvalidSignatureException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "KMSInvalidSignatureException"
 	}
 	return *e.ErrorCodeOverride
@@ -903,7 +903,7 @@ func (e *KMSInvalidStateException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *KMSInvalidStateException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "KMSInvalidStateException"
 	}
 	return *e.ErrorCodeOverride
@@ -931,7 +931,7 @@ func (e *LimitExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *LimitExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "LimitExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -958,7 +958,7 @@ func (e *MalformedPolicyDocumentException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *MalformedPolicyDocumentException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "MalformedPolicyDocumentException"
 	}
 	return *e.ErrorCodeOverride
@@ -985,7 +985,7 @@ func (e *NotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *NotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "NotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -1011,7 +1011,7 @@ func (e *TagException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TagException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TagException"
 	}
 	return *e.ErrorCodeOverride
@@ -1038,7 +1038,7 @@ func (e *UnsupportedOperationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *UnsupportedOperationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "UnsupportedOperationException"
 	}
 	return *e.ErrorCodeOverride
@@ -1066,7 +1066,7 @@ func (e *XksKeyAlreadyInUseException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *XksKeyAlreadyInUseException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "XksKeyAlreadyInUseException"
 	}
 	return *e.ErrorCodeOverride
@@ -1095,7 +1095,7 @@ func (e *XksKeyInvalidConfigurationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *XksKeyInvalidConfigurationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "XksKeyInvalidConfigurationException"
 	}
 	return *e.ErrorCodeOverride
@@ -1129,7 +1129,7 @@ func (e *XksKeyNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *XksKeyNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "XksKeyNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -1159,7 +1159,7 @@ func (e *XksProxyIncorrectAuthenticationCredentialException) ErrorMessage() stri
 	return *e.Message
 }
 func (e *XksProxyIncorrectAuthenticationCredentialException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "XksProxyIncorrectAuthenticationCredentialException"
 	}
 	return *e.ErrorCodeOverride
@@ -1189,7 +1189,7 @@ func (e *XksProxyInvalidConfigurationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *XksProxyInvalidConfigurationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "XksProxyInvalidConfigurationException"
 	}
 	return *e.ErrorCodeOverride
@@ -1220,7 +1220,7 @@ func (e *XksProxyInvalidResponseException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *XksProxyInvalidResponseException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "XksProxyInvalidResponseException"
 	}
 	return *e.ErrorCodeOverride
@@ -1249,7 +1249,7 @@ func (e *XksProxyUriEndpointInUseException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *XksProxyUriEndpointInUseException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "XksProxyUriEndpointInUseException"
 	}
 	return *e.ErrorCodeOverride
@@ -1278,7 +1278,7 @@ func (e *XksProxyUriInUseException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *XksProxyUriInUseException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "XksProxyUriInUseException"
 	}
 	return *e.ErrorCodeOverride
@@ -1308,7 +1308,7 @@ func (e *XksProxyUriUnreachableException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *XksProxyUriUnreachableException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "XksProxyUriUnreachableException"
 	}
 	return *e.ErrorCodeOverride
@@ -1337,7 +1337,7 @@ func (e *XksProxyVpcEndpointServiceInUseException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *XksProxyVpcEndpointServiceInUseException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "XksProxyVpcEndpointServiceInUseException"
 	}
 	return *e.ErrorCodeOverride
@@ -1368,7 +1368,7 @@ func (e *XksProxyVpcEndpointServiceInvalidConfigurationException) ErrorMessage()
 	return *e.Message
 }
 func (e *XksProxyVpcEndpointServiceInvalidConfigurationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "XksProxyVpcEndpointServiceInvalidConfigurationException"
 	}
 	return *e.ErrorCodeOverride
@@ -1400,7 +1400,7 @@ func (e *XksProxyVpcEndpointServiceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *XksProxyVpcEndpointServiceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "XksProxyVpcEndpointServiceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/lakeformation/types/errors.go b/service/lakeformation/types/errors.go
index fb0a85607b6..465acb84478 100644
--- a/service/lakeformation/types/errors.go
+++ b/service/lakeformation/types/errors.go
@@ -26,7 +26,7 @@ func (e *AccessDeniedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AccessDeniedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AccessDeniedException"
 	}
 	return *e.ErrorCodeOverride
@@ -52,7 +52,7 @@ func (e *AlreadyExistsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AlreadyExistsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AlreadyExistsException"
 	}
 	return *e.ErrorCodeOverride
@@ -78,7 +78,7 @@ func (e *ConcurrentModificationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ConcurrentModificationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ConcurrentModificationException"
 	}
 	return *e.ErrorCodeOverride
@@ -104,7 +104,7 @@ func (e *EntityNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *EntityNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "EntityNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -130,7 +130,7 @@ func (e *ExpiredException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ExpiredException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ExpiredException"
 	}
 	return *e.ErrorCodeOverride
@@ -156,7 +156,7 @@ func (e *GlueEncryptionException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *GlueEncryptionException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "GlueEncryptionException"
 	}
 	return *e.ErrorCodeOverride
@@ -182,7 +182,7 @@ func (e *InternalServiceException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalServiceException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalServiceException"
 	}
 	return *e.ErrorCodeOverride
@@ -208,7 +208,7 @@ func (e *InvalidInputException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidInputException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidInputException"
 	}
 	return *e.ErrorCodeOverride
@@ -234,7 +234,7 @@ func (e *OperationTimeoutException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *OperationTimeoutException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "OperationTimeoutException"
 	}
 	return *e.ErrorCodeOverride
@@ -263,7 +263,7 @@ func (e *PermissionTypeMismatchException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *PermissionTypeMismatchException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "PermissionTypeMismatchException"
 	}
 	return *e.ErrorCodeOverride
@@ -290,7 +290,7 @@ func (e *ResourceNotReadyException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotReadyException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotReadyException"
 	}
 	return *e.ErrorCodeOverride
@@ -316,7 +316,7 @@ func (e *ResourceNumberLimitExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNumberLimitExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNumberLimitExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -344,7 +344,7 @@ func (e *StatisticsNotReadyYetException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *StatisticsNotReadyYetException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "StatisticsNotReadyYetException"
 	}
 	return *e.ErrorCodeOverride
@@ -370,7 +370,7 @@ func (e *ThrottledException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ThrottledException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ThrottledException"
 	}
 	return *e.ErrorCodeOverride
@@ -396,7 +396,7 @@ func (e *TransactionCanceledException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TransactionCanceledException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TransactionCanceledException"
 	}
 	return *e.ErrorCodeOverride
@@ -423,7 +423,7 @@ func (e *TransactionCommitInProgressException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TransactionCommitInProgressException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TransactionCommitInProgressException"
 	}
 	return *e.ErrorCodeOverride
@@ -452,7 +452,7 @@ func (e *TransactionCommittedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TransactionCommittedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TransactionCommittedException"
 	}
 	return *e.ErrorCodeOverride
@@ -478,7 +478,7 @@ func (e *WorkUnitsNotReadyYetException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *WorkUnitsNotReadyYetException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "WorkUnitsNotReadyYetException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/lambda/types/errors.go b/service/lambda/types/errors.go
index a5f906e7b94..b8b2c7a8c3c 100644
--- a/service/lambda/types/errors.go
+++ b/service/lambda/types/errors.go
@@ -28,7 +28,7 @@ func (e *CodeSigningConfigNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *CodeSigningConfigNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "CodeSigningConfigNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -60,7 +60,7 @@ func (e *CodeStorageExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *CodeStorageExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "CodeStorageExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -90,7 +90,7 @@ func (e *CodeVerificationFailedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *CodeVerificationFailedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "CodeVerificationFailedException"
 	}
 	return *e.ErrorCodeOverride
@@ -118,7 +118,7 @@ func (e *EC2AccessDeniedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *EC2AccessDeniedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "EC2AccessDeniedException"
 	}
 	return *e.ErrorCodeOverride
@@ -147,7 +147,7 @@ func (e *EC2ThrottledException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *EC2ThrottledException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "EC2ThrottledException"
 	}
 	return *e.ErrorCodeOverride
@@ -177,7 +177,7 @@ func (e *EC2UnexpectedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *EC2UnexpectedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "EC2UnexpectedException"
 	}
 	return *e.ErrorCodeOverride
@@ -205,7 +205,7 @@ func (e *EFSIOException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *EFSIOException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "EFSIOException"
 	}
 	return *e.ErrorCodeOverride
@@ -234,7 +234,7 @@ func (e *EFSMountConnectivityException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *EFSMountConnectivityException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "EFSMountConnectivityException"
 	}
 	return *e.ErrorCodeOverride
@@ -263,7 +263,7 @@ func (e *EFSMountFailureException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *EFSMountFailureException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "EFSMountFailureException"
 	}
 	return *e.ErrorCodeOverride
@@ -292,7 +292,7 @@ func (e *EFSMountTimeoutException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *EFSMountTimeoutException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "EFSMountTimeoutException"
 	}
 	return *e.ErrorCodeOverride
@@ -323,7 +323,7 @@ func (e *ENILimitReachedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ENILimitReachedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ENILimitReachedException"
 	}
 	return *e.ErrorCodeOverride
@@ -352,7 +352,7 @@ func (e *InvalidCodeSignatureException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidCodeSignatureException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidCodeSignatureException"
 	}
 	return *e.ErrorCodeOverride
@@ -380,7 +380,7 @@ func (e *InvalidParameterValueException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidParameterValueException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidParameterValueException"
 	}
 	return *e.ErrorCodeOverride
@@ -408,7 +408,7 @@ func (e *InvalidRequestContentException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidRequestContentException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidRequestContentException"
 	}
 	return *e.ErrorCodeOverride
@@ -436,7 +436,7 @@ func (e *InvalidRuntimeException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidRuntimeException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidRuntimeException"
 	}
 	return *e.ErrorCodeOverride
@@ -465,7 +465,7 @@ func (e *InvalidSecurityGroupIDException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidSecurityGroupIDException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidSecurityGroupIDException"
 	}
 	return *e.ErrorCodeOverride
@@ -493,7 +493,7 @@ func (e *InvalidSubnetIDException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidSubnetIDException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidSubnetIDException"
 	}
 	return *e.ErrorCodeOverride
@@ -521,7 +521,7 @@ func (e *InvalidZipFileException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidZipFileException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidZipFileException"
 	}
 	return *e.ErrorCodeOverride
@@ -550,7 +550,7 @@ func (e *KMSAccessDeniedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *KMSAccessDeniedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "KMSAccessDeniedException"
 	}
 	return *e.ErrorCodeOverride
@@ -579,7 +579,7 @@ func (e *KMSDisabledException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *KMSDisabledException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "KMSDisabledException"
 	}
 	return *e.ErrorCodeOverride
@@ -608,7 +608,7 @@ func (e *KMSInvalidStateException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *KMSInvalidStateException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "KMSInvalidStateException"
 	}
 	return *e.ErrorCodeOverride
@@ -637,7 +637,7 @@ func (e *KMSNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *KMSNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "KMSNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -667,7 +667,7 @@ func (e *PolicyLengthExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *PolicyLengthExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "PolicyLengthExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -697,7 +697,7 @@ func (e *PreconditionFailedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *PreconditionFailedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "PreconditionFailedException"
 	}
 	return *e.ErrorCodeOverride
@@ -725,7 +725,7 @@ func (e *ProvisionedConcurrencyConfigNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ProvisionedConcurrencyConfigNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ProvisionedConcurrencyConfigNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -757,7 +757,7 @@ func (e *RequestTooLargeException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *RequestTooLargeException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "RequestTooLargeException"
 	}
 	return *e.ErrorCodeOverride
@@ -785,7 +785,7 @@ func (e *ResourceConflictException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceConflictException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceConflictException"
 	}
 	return *e.ErrorCodeOverride
@@ -815,7 +815,7 @@ func (e *ResourceInUseException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceInUseException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceInUseException"
 	}
 	return *e.ErrorCodeOverride
@@ -843,7 +843,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -872,7 +872,7 @@ func (e *ResourceNotReadyException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotReadyException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotReadyException"
 	}
 	return *e.ErrorCodeOverride
@@ -900,7 +900,7 @@ func (e *ServiceException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ServiceException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ServiceException"
 	}
 	return *e.ErrorCodeOverride
@@ -930,7 +930,7 @@ func (e *SnapStartException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *SnapStartException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "SnapStartException"
 	}
 	return *e.ErrorCodeOverride
@@ -961,7 +961,7 @@ func (e *SnapStartNotReadyException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *SnapStartNotReadyException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "SnapStartNotReadyException"
 	}
 	return *e.ErrorCodeOverride
@@ -989,7 +989,7 @@ func (e *SnapStartTimeoutException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *SnapStartTimeoutException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "SnapStartTimeoutException"
 	}
 	return *e.ErrorCodeOverride
@@ -1018,7 +1018,7 @@ func (e *SubnetIPAddressLimitReachedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *SubnetIPAddressLimitReachedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "SubnetIPAddressLimitReachedException"
 	}
 	return *e.ErrorCodeOverride
@@ -1052,7 +1052,7 @@ func (e *TooManyRequestsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TooManyRequestsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TooManyRequestsException"
 	}
 	return *e.ErrorCodeOverride
@@ -1080,7 +1080,7 @@ func (e *UnsupportedMediaTypeException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *UnsupportedMediaTypeException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "UnsupportedMediaTypeException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/lexmodelbuildingservice/types/errors.go b/service/lexmodelbuildingservice/types/errors.go
index 4ee1637eaec..dbb6a6b9332 100644
--- a/service/lexmodelbuildingservice/types/errors.go
+++ b/service/lexmodelbuildingservice/types/errors.go
@@ -27,7 +27,7 @@ func (e *AccessDeniedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AccessDeniedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AccessDeniedException"
 	}
 	return *e.ErrorCodeOverride
@@ -54,7 +54,7 @@ func (e *BadRequestException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *BadRequestException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "BadRequestException"
 	}
 	return *e.ErrorCodeOverride
@@ -80,7 +80,7 @@ func (e *ConflictException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ConflictException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ConflictException"
 	}
 	return *e.ErrorCodeOverride
@@ -106,7 +106,7 @@ func (e *InternalFailureException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalFailureException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalFailureException"
 	}
 	return *e.ErrorCodeOverride
@@ -134,7 +134,7 @@ func (e *LimitExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *LimitExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "LimitExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -161,7 +161,7 @@ func (e *NotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *NotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "NotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -188,7 +188,7 @@ func (e *PreconditionFailedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *PreconditionFailedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "PreconditionFailedException"
 	}
 	return *e.ErrorCodeOverride
@@ -224,7 +224,7 @@ func (e *ResourceInUseException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceInUseException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceInUseException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/lexmodelsv2/types/errors.go b/service/lexmodelsv2/types/errors.go
index b50cc9d3f5b..6cd3dd045d3 100644
--- a/service/lexmodelsv2/types/errors.go
+++ b/service/lexmodelsv2/types/errors.go
@@ -28,7 +28,7 @@ func (e *ConflictException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ConflictException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ConflictException"
 	}
 	return *e.ErrorCodeOverride
@@ -54,7 +54,7 @@ func (e *InternalServerException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalServerException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalServerException"
 	}
 	return *e.ErrorCodeOverride
@@ -81,7 +81,7 @@ func (e *PreconditionFailedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *PreconditionFailedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "PreconditionFailedException"
 	}
 	return *e.ErrorCodeOverride
@@ -108,7 +108,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -134,7 +134,7 @@ func (e *ServiceQuotaExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ServiceQuotaExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ServiceQuotaExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -162,7 +162,7 @@ func (e *ThrottlingException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ThrottlingException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ThrottlingException"
 	}
 	return *e.ErrorCodeOverride
@@ -189,7 +189,7 @@ func (e *ValidationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ValidationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ValidationException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/lexruntimeservice/types/errors.go b/service/lexruntimeservice/types/errors.go
index 66babc4aebe..643fd3a63c7 100644
--- a/service/lexruntimeservice/types/errors.go
+++ b/service/lexruntimeservice/types/errors.go
@@ -27,7 +27,7 @@ func (e *BadGatewayException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *BadGatewayException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "BadGatewayException"
 	}
 	return *e.ErrorCodeOverride
@@ -54,7 +54,7 @@ func (e *BadRequestException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *BadRequestException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "BadRequestException"
 	}
 	return *e.ErrorCodeOverride
@@ -80,7 +80,7 @@ func (e *ConflictException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ConflictException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ConflictException"
 	}
 	return *e.ErrorCodeOverride
@@ -116,7 +116,7 @@ func (e *DependencyFailedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DependencyFailedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DependencyFailedException"
 	}
 	return *e.ErrorCodeOverride
@@ -142,7 +142,7 @@ func (e *InternalFailureException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalFailureException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalFailureException"
 	}
 	return *e.ErrorCodeOverride
@@ -170,7 +170,7 @@ func (e *LimitExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *LimitExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "LimitExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -196,7 +196,7 @@ func (e *LoopDetectedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *LoopDetectedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "LoopDetectedException"
 	}
 	return *e.ErrorCodeOverride
@@ -222,7 +222,7 @@ func (e *NotAcceptableException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *NotAcceptableException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "NotAcceptableException"
 	}
 	return *e.ErrorCodeOverride
@@ -249,7 +249,7 @@ func (e *NotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *NotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "NotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -275,7 +275,7 @@ func (e *RequestTimeoutException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *RequestTimeoutException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "RequestTimeoutException"
 	}
 	return *e.ErrorCodeOverride
@@ -301,7 +301,7 @@ func (e *UnsupportedMediaTypeException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *UnsupportedMediaTypeException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "UnsupportedMediaTypeException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/lexruntimev2/types/errors.go b/service/lexruntimev2/types/errors.go
index 2d10ac89473..6d5b6340dbb 100644
--- a/service/lexruntimev2/types/errors.go
+++ b/service/lexruntimev2/types/errors.go
@@ -25,7 +25,7 @@ func (e *AccessDeniedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AccessDeniedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AccessDeniedException"
 	}
 	return *e.ErrorCodeOverride
@@ -50,7 +50,7 @@ func (e *BadGatewayException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *BadGatewayException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "BadGatewayException"
 	}
 	return *e.ErrorCodeOverride
@@ -75,7 +75,7 @@ func (e *ConflictException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ConflictException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ConflictException"
 	}
 	return *e.ErrorCodeOverride
@@ -100,7 +100,7 @@ func (e *DependencyFailedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DependencyFailedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DependencyFailedException"
 	}
 	return *e.ErrorCodeOverride
@@ -125,7 +125,7 @@ func (e *InternalServerException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalServerException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalServerException"
 	}
 	return *e.ErrorCodeOverride
@@ -150,7 +150,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -175,7 +175,7 @@ func (e *ThrottlingException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ThrottlingException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ThrottlingException"
 	}
 	return *e.ErrorCodeOverride
@@ -200,7 +200,7 @@ func (e *ValidationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ValidationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ValidationException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/licensemanager/types/errors.go b/service/licensemanager/types/errors.go
index c39912cc981..2ef5fb59240 100644
--- a/service/licensemanager/types/errors.go
+++ b/service/licensemanager/types/errors.go
@@ -26,7 +26,7 @@ func (e *AccessDeniedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AccessDeniedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AccessDeniedException"
 	}
 	return *e.ErrorCodeOverride
@@ -53,7 +53,7 @@ func (e *AuthorizationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AuthorizationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AuthorizationException"
 	}
 	return *e.ErrorCodeOverride
@@ -79,7 +79,7 @@ func (e *ConflictException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ConflictException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ConflictException"
 	}
 	return *e.ErrorCodeOverride
@@ -105,7 +105,7 @@ func (e *EntitlementNotAllowedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *EntitlementNotAllowedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "EntitlementNotAllowedException"
 	}
 	return *e.ErrorCodeOverride
@@ -133,7 +133,7 @@ func (e *FailedDependencyException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *FailedDependencyException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "FailedDependencyException"
 	}
 	return *e.ErrorCodeOverride
@@ -159,7 +159,7 @@ func (e *FilterLimitExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *FilterLimitExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "FilterLimitExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -185,7 +185,7 @@ func (e *InvalidParameterValueException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidParameterValueException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidParameterValueException"
 	}
 	return *e.ErrorCodeOverride
@@ -213,7 +213,7 @@ func (e *InvalidResourceStateException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidResourceStateException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidResourceStateException"
 	}
 	return *e.ErrorCodeOverride
@@ -239,7 +239,7 @@ func (e *LicenseUsageException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *LicenseUsageException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "LicenseUsageException"
 	}
 	return *e.ErrorCodeOverride
@@ -266,7 +266,7 @@ func (e *NoEntitlementsAllowedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *NoEntitlementsAllowedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "NoEntitlementsAllowedException"
 	}
 	return *e.ErrorCodeOverride
@@ -292,7 +292,7 @@ func (e *RateLimitExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *RateLimitExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "RateLimitExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -320,7 +320,7 @@ func (e *RedirectException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *RedirectException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "RedirectException"
 	}
 	return *e.ErrorCodeOverride
@@ -346,7 +346,7 @@ func (e *ResourceLimitExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceLimitExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceLimitExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -372,7 +372,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -398,7 +398,7 @@ func (e *ServerInternalException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ServerInternalException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ServerInternalException"
 	}
 	return *e.ErrorCodeOverride
@@ -424,7 +424,7 @@ func (e *UnsupportedDigitalSignatureMethodException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *UnsupportedDigitalSignatureMethodException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "UnsupportedDigitalSignatureMethodException"
 	}
 	return *e.ErrorCodeOverride
@@ -452,7 +452,7 @@ func (e *ValidationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ValidationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ValidationException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/licensemanagerlinuxsubscriptions/types/errors.go b/service/licensemanagerlinuxsubscriptions/types/errors.go
index 154b28edb77..5d863aba298 100644
--- a/service/licensemanagerlinuxsubscriptions/types/errors.go
+++ b/service/licensemanagerlinuxsubscriptions/types/errors.go
@@ -26,7 +26,7 @@ func (e *InternalServerException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalServerException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalServerException"
 	}
 	return *e.ErrorCodeOverride
@@ -52,7 +52,7 @@ func (e *ThrottlingException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ThrottlingException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ThrottlingException"
 	}
 	return *e.ErrorCodeOverride
@@ -78,7 +78,7 @@ func (e *ValidationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ValidationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ValidationException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/licensemanagerusersubscriptions/types/errors.go b/service/licensemanagerusersubscriptions/types/errors.go
index 4b91457ba7a..39335ce58af 100644
--- a/service/licensemanagerusersubscriptions/types/errors.go
+++ b/service/licensemanagerusersubscriptions/types/errors.go
@@ -26,7 +26,7 @@ func (e *AccessDeniedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AccessDeniedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AccessDeniedException"
 	}
 	return *e.ErrorCodeOverride
@@ -53,7 +53,7 @@ func (e *ConflictException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ConflictException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ConflictException"
 	}
 	return *e.ErrorCodeOverride
@@ -79,7 +79,7 @@ func (e *InternalServerException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalServerException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalServerException"
 	}
 	return *e.ErrorCodeOverride
@@ -105,7 +105,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -131,7 +131,7 @@ func (e *ServiceQuotaExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ServiceQuotaExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ServiceQuotaExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -157,7 +157,7 @@ func (e *ThrottlingException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ThrottlingException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ThrottlingException"
 	}
 	return *e.ErrorCodeOverride
@@ -183,7 +183,7 @@ func (e *ValidationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ValidationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ValidationException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/lightsail/types/errors.go b/service/lightsail/types/errors.go
index 1ed039609d6..92daeb42f60 100644
--- a/service/lightsail/types/errors.go
+++ b/service/lightsail/types/errors.go
@@ -31,7 +31,7 @@ func (e *AccessDeniedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AccessDeniedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AccessDeniedException"
 	}
 	return *e.ErrorCodeOverride
@@ -62,7 +62,7 @@ func (e *AccountSetupInProgressException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AccountSetupInProgressException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AccountSetupInProgressException"
 	}
 	return *e.ErrorCodeOverride
@@ -96,7 +96,7 @@ func (e *InvalidInputException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidInputException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidInputException"
 	}
 	return *e.ErrorCodeOverride
@@ -126,7 +126,7 @@ func (e *NotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *NotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "NotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -156,7 +156,7 @@ func (e *OperationFailureException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *OperationFailureException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "OperationFailureException"
 	}
 	return *e.ErrorCodeOverride
@@ -186,7 +186,7 @@ func (e *ServiceException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ServiceException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ServiceException"
 	}
 	return *e.ErrorCodeOverride
@@ -216,7 +216,7 @@ func (e *UnauthenticatedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *UnauthenticatedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "UnauthenticatedException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/location/types/errors.go b/service/location/types/errors.go
index 55afad4e593..c4a35c0844b 100644
--- a/service/location/types/errors.go
+++ b/service/location/types/errors.go
@@ -27,7 +27,7 @@ func (e *AccessDeniedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AccessDeniedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AccessDeniedException"
 	}
 	return *e.ErrorCodeOverride
@@ -53,7 +53,7 @@ func (e *ConflictException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ConflictException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ConflictException"
 	}
 	return *e.ErrorCodeOverride
@@ -80,7 +80,7 @@ func (e *InternalServerException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalServerException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalServerException"
 	}
 	return *e.ErrorCodeOverride
@@ -106,7 +106,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -134,7 +134,7 @@ func (e *ServiceQuotaExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ServiceQuotaExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ServiceQuotaExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -160,7 +160,7 @@ func (e *ThrottlingException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ThrottlingException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ThrottlingException"
 	}
 	return *e.ErrorCodeOverride
@@ -189,7 +189,7 @@ func (e *ValidationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ValidationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ValidationException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/lookoutequipment/types/errors.go b/service/lookoutequipment/types/errors.go
index 09e3d168e5e..c3adccf91fd 100644
--- a/service/lookoutequipment/types/errors.go
+++ b/service/lookoutequipment/types/errors.go
@@ -27,7 +27,7 @@ func (e *AccessDeniedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AccessDeniedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AccessDeniedException"
 	}
 	return *e.ErrorCodeOverride
@@ -54,7 +54,7 @@ func (e *ConflictException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ConflictException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ConflictException"
 	}
 	return *e.ErrorCodeOverride
@@ -81,7 +81,7 @@ func (e *InternalServerException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalServerException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalServerException"
 	}
 	return *e.ErrorCodeOverride
@@ -108,7 +108,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -134,7 +134,7 @@ func (e *ServiceQuotaExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ServiceQuotaExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ServiceQuotaExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -160,7 +160,7 @@ func (e *ThrottlingException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ThrottlingException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ThrottlingException"
 	}
 	return *e.ErrorCodeOverride
@@ -187,7 +187,7 @@ func (e *ValidationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ValidationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ValidationException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/lookoutmetrics/types/errors.go b/service/lookoutmetrics/types/errors.go
index ca712a81eef..2ead023f7df 100644
--- a/service/lookoutmetrics/types/errors.go
+++ b/service/lookoutmetrics/types/errors.go
@@ -26,7 +26,7 @@ func (e *AccessDeniedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AccessDeniedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AccessDeniedException"
 	}
 	return *e.ErrorCodeOverride
@@ -55,7 +55,7 @@ func (e *ConflictException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ConflictException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ConflictException"
 	}
 	return *e.ErrorCodeOverride
@@ -82,7 +82,7 @@ func (e *InternalServerException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalServerException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalServerException"
 	}
 	return *e.ErrorCodeOverride
@@ -112,7 +112,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -144,7 +144,7 @@ func (e *ServiceQuotaExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ServiceQuotaExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ServiceQuotaExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -171,7 +171,7 @@ func (e *TooManyRequestsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TooManyRequestsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TooManyRequestsException"
 	}
 	return *e.ErrorCodeOverride
@@ -201,7 +201,7 @@ func (e *ValidationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ValidationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ValidationException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/lookoutvision/types/errors.go b/service/lookoutvision/types/errors.go
index 3cd9343b2b7..d4d95d4a11e 100644
--- a/service/lookoutvision/types/errors.go
+++ b/service/lookoutvision/types/errors.go
@@ -26,7 +26,7 @@ func (e *AccessDeniedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AccessDeniedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AccessDeniedException"
 	}
 	return *e.ErrorCodeOverride
@@ -55,7 +55,7 @@ func (e *ConflictException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ConflictException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ConflictException"
 	}
 	return *e.ErrorCodeOverride
@@ -83,7 +83,7 @@ func (e *InternalServerException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalServerException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalServerException"
 	}
 	return *e.ErrorCodeOverride
@@ -112,7 +112,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -144,7 +144,7 @@ func (e *ServiceQuotaExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ServiceQuotaExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ServiceQuotaExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -175,7 +175,7 @@ func (e *ThrottlingException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ThrottlingException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ThrottlingException"
 	}
 	return *e.ErrorCodeOverride
@@ -202,7 +202,7 @@ func (e *ValidationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ValidationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ValidationException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/m2/types/errors.go b/service/m2/types/errors.go
index e38c397034e..67f070cb478 100644
--- a/service/m2/types/errors.go
+++ b/service/m2/types/errors.go
@@ -26,7 +26,7 @@ func (e *AccessDeniedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AccessDeniedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AccessDeniedException"
 	}
 	return *e.ErrorCodeOverride
@@ -55,7 +55,7 @@ func (e *ConflictException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ConflictException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ConflictException"
 	}
 	return *e.ErrorCodeOverride
@@ -83,7 +83,7 @@ func (e *InternalServerException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalServerException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalServerException"
 	}
 	return *e.ErrorCodeOverride
@@ -112,7 +112,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -144,7 +144,7 @@ func (e *ServiceQuotaExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ServiceQuotaExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ServiceQuotaExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -174,7 +174,7 @@ func (e *ThrottlingException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ThrottlingException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ThrottlingException"
 	}
 	return *e.ErrorCodeOverride
@@ -203,7 +203,7 @@ func (e *ValidationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ValidationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ValidationException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/machinelearning/types/errors.go b/service/machinelearning/types/errors.go
index f2afe941a10..e1427b3757c 100644
--- a/service/machinelearning/types/errors.go
+++ b/service/machinelearning/types/errors.go
@@ -30,7 +30,7 @@ func (e *IdempotentParameterMismatchException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *IdempotentParameterMismatchException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "IdempotentParameterMismatchException"
 	}
 	return *e.ErrorCodeOverride
@@ -60,7 +60,7 @@ func (e *InternalServerException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalServerException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalServerException"
 	}
 	return *e.ErrorCodeOverride
@@ -88,7 +88,7 @@ func (e *InvalidInputException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidInputException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidInputException"
 	}
 	return *e.ErrorCodeOverride
@@ -113,7 +113,7 @@ func (e *InvalidTagException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidTagException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidTagException"
 	}
 	return *e.ErrorCodeOverride
@@ -142,7 +142,7 @@ func (e *LimitExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *LimitExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "LimitExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -168,7 +168,7 @@ func (e *PredictorNotMountedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *PredictorNotMountedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "PredictorNotMountedException"
 	}
 	return *e.ErrorCodeOverride
@@ -196,7 +196,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -221,7 +221,7 @@ func (e *TagLimitExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TagLimitExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TagLimitExceededException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/macie/types/errors.go b/service/macie/types/errors.go
index 8867d81a081..7455fb386ef 100644
--- a/service/macie/types/errors.go
+++ b/service/macie/types/errors.go
@@ -29,7 +29,7 @@ func (e *AccessDeniedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AccessDeniedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AccessDeniedException"
 	}
 	return *e.ErrorCodeOverride
@@ -57,7 +57,7 @@ func (e *InternalException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalException"
 	}
 	return *e.ErrorCodeOverride
@@ -87,7 +87,7 @@ func (e *InvalidInputException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidInputException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidInputException"
 	}
 	return *e.ErrorCodeOverride
@@ -118,7 +118,7 @@ func (e *LimitExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *LimitExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "LimitExceededException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/macie2/types/errors.go b/service/macie2/types/errors.go
index 906d4c7e9f8..f02ea6f24d4 100644
--- a/service/macie2/types/errors.go
+++ b/service/macie2/types/errors.go
@@ -27,7 +27,7 @@ func (e *AccessDeniedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AccessDeniedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AccessDeniedException"
 	}
 	return *e.ErrorCodeOverride
@@ -54,7 +54,7 @@ func (e *ConflictException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ConflictException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ConflictException"
 	}
 	return *e.ErrorCodeOverride
@@ -81,7 +81,7 @@ func (e *InternalServerException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalServerException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalServerException"
 	}
 	return *e.ErrorCodeOverride
@@ -108,7 +108,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -135,7 +135,7 @@ func (e *ServiceQuotaExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ServiceQuotaExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ServiceQuotaExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -162,7 +162,7 @@ func (e *ThrottlingException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ThrottlingException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ThrottlingException"
 	}
 	return *e.ErrorCodeOverride
@@ -189,7 +189,7 @@ func (e *UnprocessableEntityException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *UnprocessableEntityException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "UnprocessableEntityException"
 	}
 	return *e.ErrorCodeOverride
@@ -216,7 +216,7 @@ func (e *ValidationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ValidationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ValidationException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/managedblockchain/types/errors.go b/service/managedblockchain/types/errors.go
index c4d653b060a..df32e0850f7 100644
--- a/service/managedblockchain/types/errors.go
+++ b/service/managedblockchain/types/errors.go
@@ -26,7 +26,7 @@ func (e *AccessDeniedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AccessDeniedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AccessDeniedException"
 	}
 	return *e.ErrorCodeOverride
@@ -51,7 +51,7 @@ func (e *IllegalActionException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *IllegalActionException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "IllegalActionException"
 	}
 	return *e.ErrorCodeOverride
@@ -78,7 +78,7 @@ func (e *InternalServiceErrorException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalServiceErrorException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalServiceErrorException"
 	}
 	return *e.ErrorCodeOverride
@@ -105,7 +105,7 @@ func (e *InvalidRequestException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidRequestException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidRequestException"
 	}
 	return *e.ErrorCodeOverride
@@ -131,7 +131,7 @@ func (e *ResourceAlreadyExistsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceAlreadyExistsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceAlreadyExistsException"
 	}
 	return *e.ErrorCodeOverride
@@ -159,7 +159,7 @@ func (e *ResourceLimitExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceLimitExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceLimitExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -188,7 +188,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -215,7 +215,7 @@ func (e *ResourceNotReadyException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotReadyException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotReadyException"
 	}
 	return *e.ErrorCodeOverride
@@ -244,7 +244,7 @@ func (e *ThrottlingException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ThrottlingException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ThrottlingException"
 	}
 	return *e.ErrorCodeOverride
@@ -271,7 +271,7 @@ func (e *TooManyTagsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TooManyTagsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TooManyTagsException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/marketplacecatalog/types/errors.go b/service/marketplacecatalog/types/errors.go
index 6498b10d24b..5427235405d 100644
--- a/service/marketplacecatalog/types/errors.go
+++ b/service/marketplacecatalog/types/errors.go
@@ -26,7 +26,7 @@ func (e *AccessDeniedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AccessDeniedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AccessDeniedException"
 	}
 	return *e.ErrorCodeOverride
@@ -52,7 +52,7 @@ func (e *InternalServiceException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalServiceException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalServiceException"
 	}
 	return *e.ErrorCodeOverride
@@ -78,7 +78,7 @@ func (e *ResourceInUseException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceInUseException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceInUseException"
 	}
 	return *e.ErrorCodeOverride
@@ -104,7 +104,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -130,7 +130,7 @@ func (e *ResourceNotSupportedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotSupportedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotSupportedException"
 	}
 	return *e.ErrorCodeOverride
@@ -156,7 +156,7 @@ func (e *ServiceQuotaExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ServiceQuotaExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ServiceQuotaExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -182,7 +182,7 @@ func (e *ThrottlingException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ThrottlingException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ThrottlingException"
 	}
 	return *e.ErrorCodeOverride
@@ -208,7 +208,7 @@ func (e *ValidationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ValidationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ValidationException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/marketplacecommerceanalytics/types/errors.go b/service/marketplacecommerceanalytics/types/errors.go
index 01e20970cfe..de356815ec2 100644
--- a/service/marketplacecommerceanalytics/types/errors.go
+++ b/service/marketplacecommerceanalytics/types/errors.go
@@ -26,7 +26,7 @@ func (e *MarketplaceCommerceAnalyticsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *MarketplaceCommerceAnalyticsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "MarketplaceCommerceAnalyticsException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/marketplaceentitlementservice/types/errors.go b/service/marketplaceentitlementservice/types/errors.go
index 14db49b7d8b..983e493f0e7 100644
--- a/service/marketplaceentitlementservice/types/errors.go
+++ b/service/marketplaceentitlementservice/types/errors.go
@@ -27,7 +27,7 @@ func (e *InternalServiceErrorException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalServiceErrorException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalServiceErrorException"
 	}
 	return *e.ErrorCodeOverride
@@ -53,7 +53,7 @@ func (e *InvalidParameterException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidParameterException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidParameterException"
 	}
 	return *e.ErrorCodeOverride
@@ -79,7 +79,7 @@ func (e *ThrottlingException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ThrottlingException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ThrottlingException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/marketplacemetering/types/errors.go b/service/marketplacemetering/types/errors.go
index 85dd521d135..d8de3d2b188 100644
--- a/service/marketplacemetering/types/errors.go
+++ b/service/marketplacemetering/types/errors.go
@@ -27,7 +27,7 @@ func (e *CustomerNotEntitledException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *CustomerNotEntitledException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "CustomerNotEntitledException"
 	}
 	return *e.ErrorCodeOverride
@@ -53,7 +53,7 @@ func (e *DisabledApiException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DisabledApiException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DisabledApiException"
 	}
 	return *e.ErrorCodeOverride
@@ -81,7 +81,7 @@ func (e *DuplicateRequestException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DuplicateRequestException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DuplicateRequestException"
 	}
 	return *e.ErrorCodeOverride
@@ -111,7 +111,7 @@ func (e *ExpiredTokenException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ExpiredTokenException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ExpiredTokenException"
 	}
 	return *e.ErrorCodeOverride
@@ -138,7 +138,7 @@ func (e *InternalServiceErrorException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalServiceErrorException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalServiceErrorException"
 	}
 	return *e.ErrorCodeOverride
@@ -164,7 +164,7 @@ func (e *InvalidCustomerIdentifierException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidCustomerIdentifierException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidCustomerIdentifierException"
 	}
 	return *e.ErrorCodeOverride
@@ -194,7 +194,7 @@ func (e *InvalidEndpointRegionException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidEndpointRegionException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidEndpointRegionException"
 	}
 	return *e.ErrorCodeOverride
@@ -221,7 +221,7 @@ func (e *InvalidProductCodeException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidProductCodeException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidProductCodeException"
 	}
 	return *e.ErrorCodeOverride
@@ -247,7 +247,7 @@ func (e *InvalidPublicKeyVersionException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidPublicKeyVersionException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidPublicKeyVersionException"
 	}
 	return *e.ErrorCodeOverride
@@ -275,7 +275,7 @@ func (e *InvalidRegionException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidRegionException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidRegionException"
 	}
 	return *e.ErrorCodeOverride
@@ -301,7 +301,7 @@ func (e *InvalidTagException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidTagException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidTagException"
 	}
 	return *e.ErrorCodeOverride
@@ -327,7 +327,7 @@ func (e *InvalidTokenException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidTokenException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidTokenException"
 	}
 	return *e.ErrorCodeOverride
@@ -354,7 +354,7 @@ func (e *InvalidUsageAllocationsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidUsageAllocationsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidUsageAllocationsException"
 	}
 	return *e.ErrorCodeOverride
@@ -381,7 +381,7 @@ func (e *InvalidUsageDimensionException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidUsageDimensionException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidUsageDimensionException"
 	}
 	return *e.ErrorCodeOverride
@@ -408,7 +408,7 @@ func (e *PlatformNotSupportedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *PlatformNotSupportedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "PlatformNotSupportedException"
 	}
 	return *e.ErrorCodeOverride
@@ -434,7 +434,7 @@ func (e *ThrottlingException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ThrottlingException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ThrottlingException"
 	}
 	return *e.ErrorCodeOverride
@@ -462,7 +462,7 @@ func (e *TimestampOutOfBoundsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TimestampOutOfBoundsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TimestampOutOfBoundsException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/mediaconnect/types/errors.go b/service/mediaconnect/types/errors.go
index b680223fcf0..32499a623df 100644
--- a/service/mediaconnect/types/errors.go
+++ b/service/mediaconnect/types/errors.go
@@ -28,7 +28,7 @@ func (e *AddFlowOutputs420Exception) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AddFlowOutputs420Exception) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AddFlowOutputs420Exception"
 	}
 	return *e.ErrorCodeOverride
@@ -56,7 +56,7 @@ func (e *BadRequestException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *BadRequestException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "BadRequestException"
 	}
 	return *e.ErrorCodeOverride
@@ -84,7 +84,7 @@ func (e *CreateFlow420Exception) ErrorMessage() string {
 	return *e.Message
 }
 func (e *CreateFlow420Exception) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "CreateFlow420Exception"
 	}
 	return *e.ErrorCodeOverride
@@ -112,7 +112,7 @@ func (e *ForbiddenException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ForbiddenException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ForbiddenException"
 	}
 	return *e.ErrorCodeOverride
@@ -140,7 +140,7 @@ func (e *GrantFlowEntitlements420Exception) ErrorMessage() string {
 	return *e.Message
 }
 func (e *GrantFlowEntitlements420Exception) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "GrantFlowEntitlements420Exception"
 	}
 	return *e.ErrorCodeOverride
@@ -168,7 +168,7 @@ func (e *InternalServerErrorException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalServerErrorException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalServerErrorException"
 	}
 	return *e.ErrorCodeOverride
@@ -196,7 +196,7 @@ func (e *NotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *NotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "NotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -224,7 +224,7 @@ func (e *ServiceUnavailableException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ServiceUnavailableException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ServiceUnavailableException"
 	}
 	return *e.ErrorCodeOverride
@@ -252,7 +252,7 @@ func (e *TooManyRequestsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TooManyRequestsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TooManyRequestsException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/mediaconvert/types/errors.go b/service/mediaconvert/types/errors.go
index 4307a526074..a71f4db94d1 100644
--- a/service/mediaconvert/types/errors.go
+++ b/service/mediaconvert/types/errors.go
@@ -27,7 +27,7 @@ func (e *BadRequestException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *BadRequestException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "BadRequestException"
 	}
 	return *e.ErrorCodeOverride
@@ -54,7 +54,7 @@ func (e *ConflictException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ConflictException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ConflictException"
 	}
 	return *e.ErrorCodeOverride
@@ -80,7 +80,7 @@ func (e *ForbiddenException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ForbiddenException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ForbiddenException"
 	}
 	return *e.ErrorCodeOverride
@@ -106,7 +106,7 @@ func (e *InternalServerErrorException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalServerErrorException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalServerErrorException"
 	}
 	return *e.ErrorCodeOverride
@@ -132,7 +132,7 @@ func (e *NotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *NotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "NotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -159,7 +159,7 @@ func (e *TooManyRequestsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TooManyRequestsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TooManyRequestsException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/medialive/types/errors.go b/service/medialive/types/errors.go
index 87019e62ff3..8f5b83f8a1c 100644
--- a/service/medialive/types/errors.go
+++ b/service/medialive/types/errors.go
@@ -26,7 +26,7 @@ func (e *BadGatewayException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *BadGatewayException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "BadGatewayException"
 	}
 	return *e.ErrorCodeOverride
@@ -52,7 +52,7 @@ func (e *BadRequestException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *BadRequestException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "BadRequestException"
 	}
 	return *e.ErrorCodeOverride
@@ -78,7 +78,7 @@ func (e *ConflictException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ConflictException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ConflictException"
 	}
 	return *e.ErrorCodeOverride
@@ -104,7 +104,7 @@ func (e *ForbiddenException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ForbiddenException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ForbiddenException"
 	}
 	return *e.ErrorCodeOverride
@@ -130,7 +130,7 @@ func (e *GatewayTimeoutException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *GatewayTimeoutException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "GatewayTimeoutException"
 	}
 	return *e.ErrorCodeOverride
@@ -156,7 +156,7 @@ func (e *InternalServerErrorException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalServerErrorException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalServerErrorException"
 	}
 	return *e.ErrorCodeOverride
@@ -182,7 +182,7 @@ func (e *NotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *NotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "NotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -208,7 +208,7 @@ func (e *TooManyRequestsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TooManyRequestsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TooManyRequestsException"
 	}
 	return *e.ErrorCodeOverride
@@ -236,7 +236,7 @@ func (e *UnprocessableEntityException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *UnprocessableEntityException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "UnprocessableEntityException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/mediapackage/types/errors.go b/service/mediapackage/types/errors.go
index 5c684dd0061..389c488901f 100644
--- a/service/mediapackage/types/errors.go
+++ b/service/mediapackage/types/errors.go
@@ -26,7 +26,7 @@ func (e *ForbiddenException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ForbiddenException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ForbiddenException"
 	}
 	return *e.ErrorCodeOverride
@@ -52,7 +52,7 @@ func (e *InternalServerErrorException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalServerErrorException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalServerErrorException"
 	}
 	return *e.ErrorCodeOverride
@@ -78,7 +78,7 @@ func (e *NotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *NotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "NotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -104,7 +104,7 @@ func (e *ServiceUnavailableException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ServiceUnavailableException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ServiceUnavailableException"
 	}
 	return *e.ErrorCodeOverride
@@ -130,7 +130,7 @@ func (e *TooManyRequestsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TooManyRequestsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TooManyRequestsException"
 	}
 	return *e.ErrorCodeOverride
@@ -156,7 +156,7 @@ func (e *UnprocessableEntityException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *UnprocessableEntityException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "UnprocessableEntityException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/mediapackagevod/types/errors.go b/service/mediapackagevod/types/errors.go
index 5c684dd0061..389c488901f 100644
--- a/service/mediapackagevod/types/errors.go
+++ b/service/mediapackagevod/types/errors.go
@@ -26,7 +26,7 @@ func (e *ForbiddenException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ForbiddenException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ForbiddenException"
 	}
 	return *e.ErrorCodeOverride
@@ -52,7 +52,7 @@ func (e *InternalServerErrorException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalServerErrorException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalServerErrorException"
 	}
 	return *e.ErrorCodeOverride
@@ -78,7 +78,7 @@ func (e *NotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *NotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "NotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -104,7 +104,7 @@ func (e *ServiceUnavailableException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ServiceUnavailableException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ServiceUnavailableException"
 	}
 	return *e.ErrorCodeOverride
@@ -130,7 +130,7 @@ func (e *TooManyRequestsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TooManyRequestsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TooManyRequestsException"
 	}
 	return *e.ErrorCodeOverride
@@ -156,7 +156,7 @@ func (e *UnprocessableEntityException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *UnprocessableEntityException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "UnprocessableEntityException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/mediastore/types/errors.go b/service/mediastore/types/errors.go
index 328e3eb2e98..1fa387b6bf5 100644
--- a/service/mediastore/types/errors.go
+++ b/service/mediastore/types/errors.go
@@ -27,7 +27,7 @@ func (e *ContainerInUseException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ContainerInUseException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ContainerInUseException"
 	}
 	return *e.ErrorCodeOverride
@@ -53,7 +53,7 @@ func (e *ContainerNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ContainerNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ContainerNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -79,7 +79,7 @@ func (e *CorsPolicyNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *CorsPolicyNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "CorsPolicyNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -105,7 +105,7 @@ func (e *InternalServerError) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalServerError) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalServerError"
 	}
 	return *e.ErrorCodeOverride
@@ -131,7 +131,7 @@ func (e *LimitExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *LimitExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "LimitExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -157,7 +157,7 @@ func (e *PolicyNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *PolicyNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "PolicyNotFoundException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/mediastoredata/types/errors.go b/service/mediastoredata/types/errors.go
index 0e6b950e26f..581724ef5a3 100644
--- a/service/mediastoredata/types/errors.go
+++ b/service/mediastoredata/types/errors.go
@@ -26,7 +26,7 @@ func (e *ContainerNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ContainerNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ContainerNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -52,7 +52,7 @@ func (e *InternalServerError) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalServerError) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalServerError"
 	}
 	return *e.ErrorCodeOverride
@@ -78,7 +78,7 @@ func (e *ObjectNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ObjectNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ObjectNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -104,7 +104,7 @@ func (e *RequestedRangeNotSatisfiableException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *RequestedRangeNotSatisfiableException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "RequestedRangeNotSatisfiableException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/mediatailor/types/errors.go b/service/mediatailor/types/errors.go
index bde6cb7887e..0ea1eda96d8 100644
--- a/service/mediatailor/types/errors.go
+++ b/service/mediatailor/types/errors.go
@@ -26,7 +26,7 @@ func (e *BadRequestException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *BadRequestException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "BadRequestException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/memorydb/types/errors.go b/service/memorydb/types/errors.go
index d27b520a965..e9480138e21 100644
--- a/service/memorydb/types/errors.go
+++ b/service/memorydb/types/errors.go
@@ -25,7 +25,7 @@ func (e *ACLAlreadyExistsFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ACLAlreadyExistsFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ACLAlreadyExistsFault"
 	}
 	return *e.ErrorCodeOverride
@@ -50,7 +50,7 @@ func (e *ACLNotFoundFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ACLNotFoundFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ACLNotFoundFault"
 	}
 	return *e.ErrorCodeOverride
@@ -75,7 +75,7 @@ func (e *ACLQuotaExceededFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ACLQuotaExceededFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ACLQuotaExceededFault"
 	}
 	return *e.ErrorCodeOverride
@@ -100,7 +100,7 @@ func (e *APICallRateForCustomerExceededFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *APICallRateForCustomerExceededFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "APICallRateForCustomerExceededFault"
 	}
 	return *e.ErrorCodeOverride
@@ -127,7 +127,7 @@ func (e *ClusterAlreadyExistsFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ClusterAlreadyExistsFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ClusterAlreadyExistsFault"
 	}
 	return *e.ErrorCodeOverride
@@ -152,7 +152,7 @@ func (e *ClusterNotFoundFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ClusterNotFoundFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ClusterNotFoundFault"
 	}
 	return *e.ErrorCodeOverride
@@ -177,7 +177,7 @@ func (e *ClusterQuotaForCustomerExceededFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ClusterQuotaForCustomerExceededFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ClusterQuotaForCustomerExceededFault"
 	}
 	return *e.ErrorCodeOverride
@@ -204,7 +204,7 @@ func (e *DefaultUserRequired) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DefaultUserRequired) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DefaultUserRequired"
 	}
 	return *e.ErrorCodeOverride
@@ -229,7 +229,7 @@ func (e *DuplicateUserNameFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DuplicateUserNameFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DuplicateUserNameFault"
 	}
 	return *e.ErrorCodeOverride
@@ -254,7 +254,7 @@ func (e *InsufficientClusterCapacityFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InsufficientClusterCapacityFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InsufficientClusterCapacityFault"
 	}
 	return *e.ErrorCodeOverride
@@ -279,7 +279,7 @@ func (e *InvalidACLStateFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidACLStateFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidACLStateFault"
 	}
 	return *e.ErrorCodeOverride
@@ -304,7 +304,7 @@ func (e *InvalidARNFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidARNFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidARNFault"
 	}
 	return *e.ErrorCodeOverride
@@ -329,7 +329,7 @@ func (e *InvalidClusterStateFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidClusterStateFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidClusterStateFault"
 	}
 	return *e.ErrorCodeOverride
@@ -354,7 +354,7 @@ func (e *InvalidCredentialsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidCredentialsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidCredentialsException"
 	}
 	return *e.ErrorCodeOverride
@@ -379,7 +379,7 @@ func (e *InvalidKMSKeyFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidKMSKeyFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidKMSKeyFault"
 	}
 	return *e.ErrorCodeOverride
@@ -404,7 +404,7 @@ func (e *InvalidNodeStateFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidNodeStateFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidNodeStateFault"
 	}
 	return *e.ErrorCodeOverride
@@ -429,7 +429,7 @@ func (e *InvalidParameterCombinationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidParameterCombinationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidParameterCombinationException"
 	}
 	return *e.ErrorCodeOverride
@@ -456,7 +456,7 @@ func (e *InvalidParameterGroupStateFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidParameterGroupStateFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidParameterGroupStateFault"
 	}
 	return *e.ErrorCodeOverride
@@ -481,7 +481,7 @@ func (e *InvalidParameterValueException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidParameterValueException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidParameterValueException"
 	}
 	return *e.ErrorCodeOverride
@@ -506,7 +506,7 @@ func (e *InvalidSnapshotStateFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidSnapshotStateFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidSnapshotStateFault"
 	}
 	return *e.ErrorCodeOverride
@@ -531,7 +531,7 @@ func (e *InvalidSubnet) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidSubnet) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidSubnet"
 	}
 	return *e.ErrorCodeOverride
@@ -556,7 +556,7 @@ func (e *InvalidUserStateFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidUserStateFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidUserStateFault"
 	}
 	return *e.ErrorCodeOverride
@@ -581,7 +581,7 @@ func (e *InvalidVPCNetworkStateFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidVPCNetworkStateFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidVPCNetworkStateFault"
 	}
 	return *e.ErrorCodeOverride
@@ -606,7 +606,7 @@ func (e *NodeQuotaForClusterExceededFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *NodeQuotaForClusterExceededFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "NodeQuotaForClusterExceededFault"
 	}
 	return *e.ErrorCodeOverride
@@ -631,7 +631,7 @@ func (e *NodeQuotaForCustomerExceededFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *NodeQuotaForCustomerExceededFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "NodeQuotaForCustomerExceededFault"
 	}
 	return *e.ErrorCodeOverride
@@ -656,7 +656,7 @@ func (e *NoOperationFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *NoOperationFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "NoOperationFault"
 	}
 	return *e.ErrorCodeOverride
@@ -681,7 +681,7 @@ func (e *ParameterGroupAlreadyExistsFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ParameterGroupAlreadyExistsFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ParameterGroupAlreadyExistsFault"
 	}
 	return *e.ErrorCodeOverride
@@ -706,7 +706,7 @@ func (e *ParameterGroupNotFoundFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ParameterGroupNotFoundFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ParameterGroupNotFoundFault"
 	}
 	return *e.ErrorCodeOverride
@@ -731,7 +731,7 @@ func (e *ParameterGroupQuotaExceededFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ParameterGroupQuotaExceededFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ParameterGroupQuotaExceededFault"
 	}
 	return *e.ErrorCodeOverride
@@ -757,7 +757,7 @@ func (e *ReservedNodeAlreadyExistsFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ReservedNodeAlreadyExistsFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ReservedNodeAlreadyExistsFault"
 	}
 	return *e.ErrorCodeOverride
@@ -783,7 +783,7 @@ func (e *ReservedNodeNotFoundFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ReservedNodeNotFoundFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ReservedNodeNotFoundFault"
 	}
 	return *e.ErrorCodeOverride
@@ -809,7 +809,7 @@ func (e *ReservedNodeQuotaExceededFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ReservedNodeQuotaExceededFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ReservedNodeQuotaExceededFault"
 	}
 	return *e.ErrorCodeOverride
@@ -835,7 +835,7 @@ func (e *ReservedNodesOfferingNotFoundFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ReservedNodesOfferingNotFoundFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ReservedNodesOfferingNotFoundFault"
 	}
 	return *e.ErrorCodeOverride
@@ -862,7 +862,7 @@ func (e *ServiceLinkedRoleNotFoundFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ServiceLinkedRoleNotFoundFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ServiceLinkedRoleNotFoundFault"
 	}
 	return *e.ErrorCodeOverride
@@ -887,7 +887,7 @@ func (e *ServiceUpdateNotFoundFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ServiceUpdateNotFoundFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ServiceUpdateNotFoundFault"
 	}
 	return *e.ErrorCodeOverride
@@ -912,7 +912,7 @@ func (e *ShardNotFoundFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ShardNotFoundFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ShardNotFoundFault"
 	}
 	return *e.ErrorCodeOverride
@@ -937,7 +937,7 @@ func (e *ShardsPerClusterQuotaExceededFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ShardsPerClusterQuotaExceededFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ShardsPerClusterQuotaExceededFault"
 	}
 	return *e.ErrorCodeOverride
@@ -964,7 +964,7 @@ func (e *SnapshotAlreadyExistsFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *SnapshotAlreadyExistsFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "SnapshotAlreadyExistsFault"
 	}
 	return *e.ErrorCodeOverride
@@ -989,7 +989,7 @@ func (e *SnapshotNotFoundFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *SnapshotNotFoundFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "SnapshotNotFoundFault"
 	}
 	return *e.ErrorCodeOverride
@@ -1014,7 +1014,7 @@ func (e *SnapshotQuotaExceededFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *SnapshotQuotaExceededFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "SnapshotQuotaExceededFault"
 	}
 	return *e.ErrorCodeOverride
@@ -1039,7 +1039,7 @@ func (e *SubnetGroupAlreadyExistsFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *SubnetGroupAlreadyExistsFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "SubnetGroupAlreadyExistsFault"
 	}
 	return *e.ErrorCodeOverride
@@ -1064,7 +1064,7 @@ func (e *SubnetGroupInUseFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *SubnetGroupInUseFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "SubnetGroupInUseFault"
 	}
 	return *e.ErrorCodeOverride
@@ -1089,7 +1089,7 @@ func (e *SubnetGroupNotFoundFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *SubnetGroupNotFoundFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "SubnetGroupNotFoundFault"
 	}
 	return *e.ErrorCodeOverride
@@ -1114,7 +1114,7 @@ func (e *SubnetGroupQuotaExceededFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *SubnetGroupQuotaExceededFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "SubnetGroupQuotaExceededFault"
 	}
 	return *e.ErrorCodeOverride
@@ -1139,7 +1139,7 @@ func (e *SubnetInUse) ErrorMessage() string {
 	return *e.Message
 }
 func (e *SubnetInUse) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "SubnetInUse"
 	}
 	return *e.ErrorCodeOverride
@@ -1164,7 +1164,7 @@ func (e *SubnetNotAllowedFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *SubnetNotAllowedFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "SubnetNotAllowedFault"
 	}
 	return *e.ErrorCodeOverride
@@ -1189,7 +1189,7 @@ func (e *SubnetQuotaExceededFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *SubnetQuotaExceededFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "SubnetQuotaExceededFault"
 	}
 	return *e.ErrorCodeOverride
@@ -1214,7 +1214,7 @@ func (e *TagNotFoundFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TagNotFoundFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TagNotFoundFault"
 	}
 	return *e.ErrorCodeOverride
@@ -1239,7 +1239,7 @@ func (e *TagQuotaPerResourceExceeded) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TagQuotaPerResourceExceeded) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TagQuotaPerResourceExceeded"
 	}
 	return *e.ErrorCodeOverride
@@ -1264,7 +1264,7 @@ func (e *TestFailoverNotAvailableFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TestFailoverNotAvailableFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TestFailoverNotAvailableFault"
 	}
 	return *e.ErrorCodeOverride
@@ -1289,7 +1289,7 @@ func (e *UserAlreadyExistsFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *UserAlreadyExistsFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "UserAlreadyExistsFault"
 	}
 	return *e.ErrorCodeOverride
@@ -1314,7 +1314,7 @@ func (e *UserNotFoundFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *UserNotFoundFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "UserNotFoundFault"
 	}
 	return *e.ErrorCodeOverride
@@ -1339,7 +1339,7 @@ func (e *UserQuotaExceededFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *UserQuotaExceededFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "UserQuotaExceededFault"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/mgn/types/errors.go b/service/mgn/types/errors.go
index fd3bffae221..3eaea7e5876 100644
--- a/service/mgn/types/errors.go
+++ b/service/mgn/types/errors.go
@@ -28,7 +28,7 @@ func (e *AccessDeniedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AccessDeniedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AccessDeniedException"
 	}
 	return *e.ErrorCodeOverride
@@ -60,7 +60,7 @@ func (e *ConflictException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ConflictException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ConflictException"
 	}
 	return *e.ErrorCodeOverride
@@ -89,7 +89,7 @@ func (e *InternalServerException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalServerException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalServerException"
 	}
 	return *e.ErrorCodeOverride
@@ -119,7 +119,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -152,7 +152,7 @@ func (e *ServiceQuotaExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ServiceQuotaExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ServiceQuotaExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -182,7 +182,7 @@ func (e *ThrottlingException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ThrottlingException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ThrottlingException"
 	}
 	return *e.ErrorCodeOverride
@@ -210,7 +210,7 @@ func (e *UninitializedAccountException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *UninitializedAccountException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "UninitializedAccountException"
 	}
 	return *e.ErrorCodeOverride
@@ -240,7 +240,7 @@ func (e *ValidationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ValidationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ValidationException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/migrationhub/types/errors.go b/service/migrationhub/types/errors.go
index aaa6df2530e..097c7c62822 100644
--- a/service/migrationhub/types/errors.go
+++ b/service/migrationhub/types/errors.go
@@ -26,7 +26,7 @@ func (e *AccessDeniedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AccessDeniedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AccessDeniedException"
 	}
 	return *e.ErrorCodeOverride
@@ -53,7 +53,7 @@ func (e *DryRunOperation) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DryRunOperation) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DryRunOperation"
 	}
 	return *e.ErrorCodeOverride
@@ -79,7 +79,7 @@ func (e *HomeRegionNotSetException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *HomeRegionNotSetException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "HomeRegionNotSetException"
 	}
 	return *e.ErrorCodeOverride
@@ -106,7 +106,7 @@ func (e *InternalServerError) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalServerError) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalServerError"
 	}
 	return *e.ErrorCodeOverride
@@ -133,7 +133,7 @@ func (e *InvalidInputException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidInputException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidInputException"
 	}
 	return *e.ErrorCodeOverride
@@ -161,7 +161,7 @@ func (e *PolicyErrorException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *PolicyErrorException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "PolicyErrorException"
 	}
 	return *e.ErrorCodeOverride
@@ -190,7 +190,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -217,7 +217,7 @@ func (e *ServiceUnavailableException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ServiceUnavailableException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ServiceUnavailableException"
 	}
 	return *e.ErrorCodeOverride
@@ -245,7 +245,7 @@ func (e *ThrottlingException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ThrottlingException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ThrottlingException"
 	}
 	return *e.ErrorCodeOverride
@@ -272,7 +272,7 @@ func (e *UnauthorizedOperation) ErrorMessage() string {
 	return *e.Message
 }
 func (e *UnauthorizedOperation) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "UnauthorizedOperation"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/migrationhubconfig/types/errors.go b/service/migrationhubconfig/types/errors.go
index 0e45ea8891d..5daf957cf68 100644
--- a/service/migrationhubconfig/types/errors.go
+++ b/service/migrationhubconfig/types/errors.go
@@ -26,7 +26,7 @@ func (e *AccessDeniedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AccessDeniedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AccessDeniedException"
 	}
 	return *e.ErrorCodeOverride
@@ -53,7 +53,7 @@ func (e *DryRunOperation) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DryRunOperation) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DryRunOperation"
 	}
 	return *e.ErrorCodeOverride
@@ -80,7 +80,7 @@ func (e *InternalServerError) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalServerError) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalServerError"
 	}
 	return *e.ErrorCodeOverride
@@ -107,7 +107,7 @@ func (e *InvalidInputException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidInputException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidInputException"
 	}
 	return *e.ErrorCodeOverride
@@ -134,7 +134,7 @@ func (e *ServiceUnavailableException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ServiceUnavailableException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ServiceUnavailableException"
 	}
 	return *e.ErrorCodeOverride
@@ -162,7 +162,7 @@ func (e *ThrottlingException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ThrottlingException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ThrottlingException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/migrationhuborchestrator/types/errors.go b/service/migrationhuborchestrator/types/errors.go
index 83316ffc6ec..054dfc5e52a 100644
--- a/service/migrationhuborchestrator/types/errors.go
+++ b/service/migrationhuborchestrator/types/errors.go
@@ -26,7 +26,7 @@ func (e *AccessDeniedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AccessDeniedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AccessDeniedException"
 	}
 	return *e.ErrorCodeOverride
@@ -52,7 +52,7 @@ func (e *InternalServerException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalServerException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalServerException"
 	}
 	return *e.ErrorCodeOverride
@@ -78,7 +78,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -104,7 +104,7 @@ func (e *ThrottlingException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ThrottlingException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ThrottlingException"
 	}
 	return *e.ErrorCodeOverride
@@ -130,7 +130,7 @@ func (e *ValidationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ValidationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ValidationException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/migrationhubrefactorspaces/types/errors.go b/service/migrationhubrefactorspaces/types/errors.go
index 4fcdee2d767..1bdb31133b6 100644
--- a/service/migrationhubrefactorspaces/types/errors.go
+++ b/service/migrationhubrefactorspaces/types/errors.go
@@ -26,7 +26,7 @@ func (e *AccessDeniedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AccessDeniedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AccessDeniedException"
 	}
 	return *e.ErrorCodeOverride
@@ -55,7 +55,7 @@ func (e *ConflictException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ConflictException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ConflictException"
 	}
 	return *e.ErrorCodeOverride
@@ -81,7 +81,7 @@ func (e *InternalServerException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalServerException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalServerException"
 	}
 	return *e.ErrorCodeOverride
@@ -107,7 +107,7 @@ func (e *InvalidResourcePolicyException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidResourcePolicyException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidResourcePolicyException"
 	}
 	return *e.ErrorCodeOverride
@@ -136,7 +136,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -167,7 +167,7 @@ func (e *ServiceQuotaExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ServiceQuotaExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ServiceQuotaExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -197,7 +197,7 @@ func (e *ThrottlingException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ThrottlingException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ThrottlingException"
 	}
 	return *e.ErrorCodeOverride
@@ -223,7 +223,7 @@ func (e *ValidationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ValidationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ValidationException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/migrationhubstrategy/types/errors.go b/service/migrationhubstrategy/types/errors.go
index b6c928fb346..df7dfde020f 100644
--- a/service/migrationhubstrategy/types/errors.go
+++ b/service/migrationhubstrategy/types/errors.go
@@ -27,7 +27,7 @@ func (e *AccessDeniedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AccessDeniedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AccessDeniedException"
 	}
 	return *e.ErrorCodeOverride
@@ -54,7 +54,7 @@ func (e *ConflictException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ConflictException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ConflictException"
 	}
 	return *e.ErrorCodeOverride
@@ -80,7 +80,7 @@ func (e *DependencyException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DependencyException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DependencyException"
 	}
 	return *e.ErrorCodeOverride
@@ -106,7 +106,7 @@ func (e *InternalServerException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalServerException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalServerException"
 	}
 	return *e.ErrorCodeOverride
@@ -132,7 +132,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -158,7 +158,7 @@ func (e *ServiceLinkedRoleLockClientException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ServiceLinkedRoleLockClientException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ServiceLinkedRoleLockClientException"
 	}
 	return *e.ErrorCodeOverride
@@ -187,7 +187,7 @@ func (e *ServiceQuotaExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ServiceQuotaExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ServiceQuotaExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -213,7 +213,7 @@ func (e *ThrottlingException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ThrottlingException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ThrottlingException"
 	}
 	return *e.ErrorCodeOverride
@@ -239,7 +239,7 @@ func (e *ValidationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ValidationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ValidationException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/mobile/types/errors.go b/service/mobile/types/errors.go
index 2403671fd0a..39b3d3b458a 100644
--- a/service/mobile/types/errors.go
+++ b/service/mobile/types/errors.go
@@ -26,7 +26,7 @@ func (e *AccountActionRequiredException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AccountActionRequiredException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AccountActionRequiredException"
 	}
 	return *e.ErrorCodeOverride
@@ -53,7 +53,7 @@ func (e *BadRequestException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *BadRequestException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "BadRequestException"
 	}
 	return *e.ErrorCodeOverride
@@ -80,7 +80,7 @@ func (e *InternalFailureException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalFailureException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalFailureException"
 	}
 	return *e.ErrorCodeOverride
@@ -111,7 +111,7 @@ func (e *LimitExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *LimitExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "LimitExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -137,7 +137,7 @@ func (e *NotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *NotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "NotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -166,7 +166,7 @@ func (e *ServiceUnavailableException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ServiceUnavailableException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ServiceUnavailableException"
 	}
 	return *e.ErrorCodeOverride
@@ -195,7 +195,7 @@ func (e *TooManyRequestsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TooManyRequestsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TooManyRequestsException"
 	}
 	return *e.ErrorCodeOverride
@@ -221,7 +221,7 @@ func (e *UnauthorizedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *UnauthorizedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "UnauthorizedException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/mq/types/errors.go b/service/mq/types/errors.go
index f325774c7f5..7e484ff6c08 100644
--- a/service/mq/types/errors.go
+++ b/service/mq/types/errors.go
@@ -28,7 +28,7 @@ func (e *BadRequestException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *BadRequestException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "BadRequestException"
 	}
 	return *e.ErrorCodeOverride
@@ -56,7 +56,7 @@ func (e *ConflictException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ConflictException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ConflictException"
 	}
 	return *e.ErrorCodeOverride
@@ -84,7 +84,7 @@ func (e *ForbiddenException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ForbiddenException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ForbiddenException"
 	}
 	return *e.ErrorCodeOverride
@@ -112,7 +112,7 @@ func (e *InternalServerErrorException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalServerErrorException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalServerErrorException"
 	}
 	return *e.ErrorCodeOverride
@@ -140,7 +140,7 @@ func (e *NotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *NotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "NotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -168,7 +168,7 @@ func (e *UnauthorizedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *UnauthorizedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "UnauthorizedException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/mturk/types/errors.go b/service/mturk/types/errors.go
index 379106c7526..8ea034cfed3 100644
--- a/service/mturk/types/errors.go
+++ b/service/mturk/types/errors.go
@@ -28,7 +28,7 @@ func (e *RequestError) ErrorMessage() string {
 	return *e.Message
 }
 func (e *RequestError) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "RequestError"
 	}
 	return *e.ErrorCodeOverride
@@ -57,7 +57,7 @@ func (e *ServiceFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ServiceFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ServiceFault"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/mwaa/types/errors.go b/service/mwaa/types/errors.go
index 454f208b94c..83a98a0cfe4 100644
--- a/service/mwaa/types/errors.go
+++ b/service/mwaa/types/errors.go
@@ -28,7 +28,7 @@ func (e *AccessDeniedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AccessDeniedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AccessDeniedException"
 	}
 	return *e.ErrorCodeOverride
@@ -54,7 +54,7 @@ func (e *InternalServerException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalServerException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalServerException"
 	}
 	return *e.ErrorCodeOverride
@@ -80,7 +80,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -106,7 +106,7 @@ func (e *ValidationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ValidationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ValidationException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/neptune/types/errors.go b/service/neptune/types/errors.go
index 2992e8fc350..d8991906caf 100644
--- a/service/neptune/types/errors.go
+++ b/service/neptune/types/errors.go
@@ -28,7 +28,7 @@ func (e *AuthorizationNotFoundFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AuthorizationNotFoundFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AuthorizationNotFound"
 	}
 	return *e.ErrorCodeOverride
@@ -54,7 +54,7 @@ func (e *CertificateNotFoundFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *CertificateNotFoundFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "CertificateNotFound"
 	}
 	return *e.ErrorCodeOverride
@@ -80,7 +80,7 @@ func (e *DBClusterAlreadyExistsFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DBClusterAlreadyExistsFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DBClusterAlreadyExistsFault"
 	}
 	return *e.ErrorCodeOverride
@@ -106,7 +106,7 @@ func (e *DBClusterEndpointAlreadyExistsFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DBClusterEndpointAlreadyExistsFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DBClusterEndpointAlreadyExistsFault"
 	}
 	return *e.ErrorCodeOverride
@@ -134,7 +134,7 @@ func (e *DBClusterEndpointNotFoundFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DBClusterEndpointNotFoundFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DBClusterEndpointNotFoundFault"
 	}
 	return *e.ErrorCodeOverride
@@ -160,7 +160,7 @@ func (e *DBClusterEndpointQuotaExceededFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DBClusterEndpointQuotaExceededFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DBClusterEndpointQuotaExceededFault"
 	}
 	return *e.ErrorCodeOverride
@@ -188,7 +188,7 @@ func (e *DBClusterNotFoundFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DBClusterNotFoundFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DBClusterNotFoundFault"
 	}
 	return *e.ErrorCodeOverride
@@ -215,7 +215,7 @@ func (e *DBClusterParameterGroupNotFoundFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DBClusterParameterGroupNotFoundFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DBClusterParameterGroupNotFound"
 	}
 	return *e.ErrorCodeOverride
@@ -244,7 +244,7 @@ func (e *DBClusterQuotaExceededFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DBClusterQuotaExceededFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DBClusterQuotaExceededFault"
 	}
 	return *e.ErrorCodeOverride
@@ -271,7 +271,7 @@ func (e *DBClusterRoleAlreadyExistsFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DBClusterRoleAlreadyExistsFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DBClusterRoleAlreadyExists"
 	}
 	return *e.ErrorCodeOverride
@@ -298,7 +298,7 @@ func (e *DBClusterRoleNotFoundFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DBClusterRoleNotFoundFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DBClusterRoleNotFound"
 	}
 	return *e.ErrorCodeOverride
@@ -325,7 +325,7 @@ func (e *DBClusterRoleQuotaExceededFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DBClusterRoleQuotaExceededFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DBClusterRoleQuotaExceeded"
 	}
 	return *e.ErrorCodeOverride
@@ -351,7 +351,7 @@ func (e *DBClusterSnapshotAlreadyExistsFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DBClusterSnapshotAlreadyExistsFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DBClusterSnapshotAlreadyExistsFault"
 	}
 	return *e.ErrorCodeOverride
@@ -379,7 +379,7 @@ func (e *DBClusterSnapshotNotFoundFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DBClusterSnapshotNotFoundFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DBClusterSnapshotNotFoundFault"
 	}
 	return *e.ErrorCodeOverride
@@ -405,7 +405,7 @@ func (e *DBInstanceAlreadyExistsFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DBInstanceAlreadyExistsFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DBInstanceAlreadyExists"
 	}
 	return *e.ErrorCodeOverride
@@ -431,7 +431,7 @@ func (e *DBInstanceNotFoundFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DBInstanceNotFoundFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DBInstanceNotFound"
 	}
 	return *e.ErrorCodeOverride
@@ -457,7 +457,7 @@ func (e *DBParameterGroupAlreadyExistsFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DBParameterGroupAlreadyExistsFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DBParameterGroupAlreadyExists"
 	}
 	return *e.ErrorCodeOverride
@@ -485,7 +485,7 @@ func (e *DBParameterGroupNotFoundFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DBParameterGroupNotFoundFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DBParameterGroupNotFound"
 	}
 	return *e.ErrorCodeOverride
@@ -512,7 +512,7 @@ func (e *DBParameterGroupQuotaExceededFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DBParameterGroupQuotaExceededFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DBParameterGroupQuotaExceeded"
 	}
 	return *e.ErrorCodeOverride
@@ -540,7 +540,7 @@ func (e *DBSecurityGroupNotFoundFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DBSecurityGroupNotFoundFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DBSecurityGroupNotFound"
 	}
 	return *e.ErrorCodeOverride
@@ -566,7 +566,7 @@ func (e *DBSnapshotAlreadyExistsFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DBSnapshotAlreadyExistsFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DBSnapshotAlreadyExists"
 	}
 	return *e.ErrorCodeOverride
@@ -592,7 +592,7 @@ func (e *DBSnapshotNotFoundFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DBSnapshotNotFoundFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DBSnapshotNotFound"
 	}
 	return *e.ErrorCodeOverride
@@ -618,7 +618,7 @@ func (e *DBSubnetGroupAlreadyExistsFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DBSubnetGroupAlreadyExistsFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DBSubnetGroupAlreadyExists"
 	}
 	return *e.ErrorCodeOverride
@@ -645,7 +645,7 @@ func (e *DBSubnetGroupDoesNotCoverEnoughAZs) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DBSubnetGroupDoesNotCoverEnoughAZs) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DBSubnetGroupDoesNotCoverEnoughAZs"
 	}
 	return *e.ErrorCodeOverride
@@ -673,7 +673,7 @@ func (e *DBSubnetGroupNotFoundFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DBSubnetGroupNotFoundFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DBSubnetGroupNotFoundFault"
 	}
 	return *e.ErrorCodeOverride
@@ -699,7 +699,7 @@ func (e *DBSubnetGroupQuotaExceededFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DBSubnetGroupQuotaExceededFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DBSubnetGroupQuotaExceeded"
 	}
 	return *e.ErrorCodeOverride
@@ -726,7 +726,7 @@ func (e *DBSubnetQuotaExceededFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DBSubnetQuotaExceededFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DBSubnetQuotaExceededFault"
 	}
 	return *e.ErrorCodeOverride
@@ -753,7 +753,7 @@ func (e *DBUpgradeDependencyFailureFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DBUpgradeDependencyFailureFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DBUpgradeDependencyFailure"
 	}
 	return *e.ErrorCodeOverride
@@ -779,7 +779,7 @@ func (e *DomainNotFoundFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DomainNotFoundFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DomainNotFoundFault"
 	}
 	return *e.ErrorCodeOverride
@@ -805,7 +805,7 @@ func (e *EventSubscriptionQuotaExceededFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *EventSubscriptionQuotaExceededFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "EventSubscriptionQuotaExceeded"
 	}
 	return *e.ErrorCodeOverride
@@ -834,7 +834,7 @@ func (e *GlobalClusterAlreadyExistsFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *GlobalClusterAlreadyExistsFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "GlobalClusterAlreadyExistsFault"
 	}
 	return *e.ErrorCodeOverride
@@ -861,7 +861,7 @@ func (e *GlobalClusterNotFoundFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *GlobalClusterNotFoundFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "GlobalClusterNotFoundFault"
 	}
 	return *e.ErrorCodeOverride
@@ -888,7 +888,7 @@ func (e *GlobalClusterQuotaExceededFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *GlobalClusterQuotaExceededFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "GlobalClusterQuotaExceededFault"
 	}
 	return *e.ErrorCodeOverride
@@ -914,7 +914,7 @@ func (e *InstanceQuotaExceededFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InstanceQuotaExceededFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InstanceQuotaExceeded"
 	}
 	return *e.ErrorCodeOverride
@@ -940,7 +940,7 @@ func (e *InsufficientDBClusterCapacityFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InsufficientDBClusterCapacityFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InsufficientDBClusterCapacityFault"
 	}
 	return *e.ErrorCodeOverride
@@ -968,7 +968,7 @@ func (e *InsufficientDBInstanceCapacityFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InsufficientDBInstanceCapacityFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InsufficientDBInstanceCapacity"
 	}
 	return *e.ErrorCodeOverride
@@ -998,7 +998,7 @@ func (e *InsufficientStorageClusterCapacityFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InsufficientStorageClusterCapacityFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InsufficientStorageClusterCapacity"
 	}
 	return *e.ErrorCodeOverride
@@ -1027,7 +1027,7 @@ func (e *InvalidDBClusterEndpointStateFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidDBClusterEndpointStateFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidDBClusterEndpointStateFault"
 	}
 	return *e.ErrorCodeOverride
@@ -1055,7 +1055,7 @@ func (e *InvalidDBClusterSnapshotStateFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidDBClusterSnapshotStateFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidDBClusterSnapshotStateFault"
 	}
 	return *e.ErrorCodeOverride
@@ -1083,7 +1083,7 @@ func (e *InvalidDBClusterStateFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidDBClusterStateFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidDBClusterStateFault"
 	}
 	return *e.ErrorCodeOverride
@@ -1109,7 +1109,7 @@ func (e *InvalidDBInstanceStateFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidDBInstanceStateFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidDBInstanceState"
 	}
 	return *e.ErrorCodeOverride
@@ -1137,7 +1137,7 @@ func (e *InvalidDBParameterGroupStateFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidDBParameterGroupStateFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidDBParameterGroupState"
 	}
 	return *e.ErrorCodeOverride
@@ -1163,7 +1163,7 @@ func (e *InvalidDBSecurityGroupStateFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidDBSecurityGroupStateFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidDBSecurityGroupState"
 	}
 	return *e.ErrorCodeOverride
@@ -1189,7 +1189,7 @@ func (e *InvalidDBSnapshotStateFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidDBSnapshotStateFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidDBSnapshotState"
 	}
 	return *e.ErrorCodeOverride
@@ -1215,7 +1215,7 @@ func (e *InvalidDBSubnetGroupStateFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidDBSubnetGroupStateFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidDBSubnetGroupStateFault"
 	}
 	return *e.ErrorCodeOverride
@@ -1241,7 +1241,7 @@ func (e *InvalidDBSubnetStateFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidDBSubnetStateFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidDBSubnetStateFault"
 	}
 	return *e.ErrorCodeOverride
@@ -1267,7 +1267,7 @@ func (e *InvalidEventSubscriptionStateFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidEventSubscriptionStateFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidEventSubscriptionState"
 	}
 	return *e.ErrorCodeOverride
@@ -1296,7 +1296,7 @@ func (e *InvalidGlobalClusterStateFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidGlobalClusterStateFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidGlobalClusterStateFault"
 	}
 	return *e.ErrorCodeOverride
@@ -1322,7 +1322,7 @@ func (e *InvalidRestoreFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidRestoreFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidRestoreFault"
 	}
 	return *e.ErrorCodeOverride
@@ -1349,7 +1349,7 @@ func (e *InvalidSubnet) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidSubnet) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidSubnet"
 	}
 	return *e.ErrorCodeOverride
@@ -1376,7 +1376,7 @@ func (e *InvalidVPCNetworkStateFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidVPCNetworkStateFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidVPCNetworkStateFault"
 	}
 	return *e.ErrorCodeOverride
@@ -1402,7 +1402,7 @@ func (e *KMSKeyNotAccessibleFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *KMSKeyNotAccessibleFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "KMSKeyNotAccessibleFault"
 	}
 	return *e.ErrorCodeOverride
@@ -1428,7 +1428,7 @@ func (e *OptionGroupNotFoundFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *OptionGroupNotFoundFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "OptionGroupNotFoundFault"
 	}
 	return *e.ErrorCodeOverride
@@ -1454,7 +1454,7 @@ func (e *ProvisionedIopsNotAvailableInAZFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ProvisionedIopsNotAvailableInAZFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ProvisionedIopsNotAvailableInAZFault"
 	}
 	return *e.ErrorCodeOverride
@@ -1482,7 +1482,7 @@ func (e *ResourceNotFoundFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundFault"
 	}
 	return *e.ErrorCodeOverride
@@ -1509,7 +1509,7 @@ func (e *SharedSnapshotQuotaExceededFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *SharedSnapshotQuotaExceededFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "SharedSnapshotQuotaExceeded"
 	}
 	return *e.ErrorCodeOverride
@@ -1535,7 +1535,7 @@ func (e *SnapshotQuotaExceededFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *SnapshotQuotaExceededFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "SnapshotQuotaExceeded"
 	}
 	return *e.ErrorCodeOverride
@@ -1561,7 +1561,7 @@ func (e *SNSInvalidTopicFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *SNSInvalidTopicFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "SNSInvalidTopic"
 	}
 	return *e.ErrorCodeOverride
@@ -1587,7 +1587,7 @@ func (e *SNSNoAuthorizationFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *SNSNoAuthorizationFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "SNSNoAuthorization"
 	}
 	return *e.ErrorCodeOverride
@@ -1613,7 +1613,7 @@ func (e *SNSTopicArnNotFoundFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *SNSTopicArnNotFoundFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "SNSTopicArnNotFound"
 	}
 	return *e.ErrorCodeOverride
@@ -1639,7 +1639,7 @@ func (e *SourceNotFoundFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *SourceNotFoundFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "SourceNotFound"
 	}
 	return *e.ErrorCodeOverride
@@ -1666,7 +1666,7 @@ func (e *StorageQuotaExceededFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *StorageQuotaExceededFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "StorageQuotaExceeded"
 	}
 	return *e.ErrorCodeOverride
@@ -1692,7 +1692,7 @@ func (e *StorageTypeNotSupportedFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *StorageTypeNotSupportedFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "StorageTypeNotSupported"
 	}
 	return *e.ErrorCodeOverride
@@ -1718,7 +1718,7 @@ func (e *SubnetAlreadyInUse) ErrorMessage() string {
 	return *e.Message
 }
 func (e *SubnetAlreadyInUse) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "SubnetAlreadyInUse"
 	}
 	return *e.ErrorCodeOverride
@@ -1744,7 +1744,7 @@ func (e *SubscriptionAlreadyExistFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *SubscriptionAlreadyExistFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "SubscriptionAlreadyExist"
 	}
 	return *e.ErrorCodeOverride
@@ -1770,7 +1770,7 @@ func (e *SubscriptionCategoryNotFoundFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *SubscriptionCategoryNotFoundFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "SubscriptionCategoryNotFound"
 	}
 	return *e.ErrorCodeOverride
@@ -1796,7 +1796,7 @@ func (e *SubscriptionNotFoundFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *SubscriptionNotFoundFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "SubscriptionNotFound"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/networkfirewall/types/errors.go b/service/networkfirewall/types/errors.go
index ed77d59d39e..fd63816169d 100644
--- a/service/networkfirewall/types/errors.go
+++ b/service/networkfirewall/types/errors.go
@@ -27,7 +27,7 @@ func (e *InsufficientCapacityException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InsufficientCapacityException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InsufficientCapacityException"
 	}
 	return *e.ErrorCodeOverride
@@ -54,7 +54,7 @@ func (e *InternalServerError) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalServerError) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalServerError"
 	}
 	return *e.ErrorCodeOverride
@@ -81,7 +81,7 @@ func (e *InvalidOperationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidOperationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidOperationException"
 	}
 	return *e.ErrorCodeOverride
@@ -117,7 +117,7 @@ func (e *InvalidRequestException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidRequestException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidRequestException"
 	}
 	return *e.ErrorCodeOverride
@@ -143,7 +143,7 @@ func (e *InvalidResourcePolicyException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidResourcePolicyException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidResourcePolicyException"
 	}
 	return *e.ErrorCodeOverride
@@ -169,7 +169,7 @@ func (e *InvalidTokenException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidTokenException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidTokenException"
 	}
 	return *e.ErrorCodeOverride
@@ -195,7 +195,7 @@ func (e *LimitExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *LimitExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "LimitExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -221,7 +221,7 @@ func (e *LogDestinationPermissionException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *LogDestinationPermissionException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "LogDestinationPermissionException"
 	}
 	return *e.ErrorCodeOverride
@@ -247,7 +247,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -273,7 +273,7 @@ func (e *ResourceOwnerCheckException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceOwnerCheckException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceOwnerCheckException"
 	}
 	return *e.ErrorCodeOverride
@@ -299,7 +299,7 @@ func (e *ThrottlingException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ThrottlingException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ThrottlingException"
 	}
 	return *e.ErrorCodeOverride
@@ -325,7 +325,7 @@ func (e *UnsupportedOperationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *UnsupportedOperationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "UnsupportedOperationException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/networkmanager/types/errors.go b/service/networkmanager/types/errors.go
index 554d902b6b4..3c4350a5b2b 100644
--- a/service/networkmanager/types/errors.go
+++ b/service/networkmanager/types/errors.go
@@ -26,7 +26,7 @@ func (e *AccessDeniedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AccessDeniedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AccessDeniedException"
 	}
 	return *e.ErrorCodeOverride
@@ -56,7 +56,7 @@ func (e *ConflictException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ConflictException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ConflictException"
 	}
 	return *e.ErrorCodeOverride
@@ -84,7 +84,7 @@ func (e *CoreNetworkPolicyException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *CoreNetworkPolicyException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "CoreNetworkPolicyException"
 	}
 	return *e.ErrorCodeOverride
@@ -112,7 +112,7 @@ func (e *InternalServerException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalServerException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalServerException"
 	}
 	return *e.ErrorCodeOverride
@@ -142,7 +142,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -173,7 +173,7 @@ func (e *ServiceQuotaExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ServiceQuotaExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ServiceQuotaExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -201,7 +201,7 @@ func (e *ThrottlingException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ThrottlingException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ThrottlingException"
 	}
 	return *e.ErrorCodeOverride
@@ -230,7 +230,7 @@ func (e *ValidationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ValidationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ValidationException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/nimble/types/errors.go b/service/nimble/types/errors.go
index 7aba3cd7776..f01156bdf45 100644
--- a/service/nimble/types/errors.go
+++ b/service/nimble/types/errors.go
@@ -30,7 +30,7 @@ func (e *AccessDeniedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AccessDeniedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AccessDeniedException"
 	}
 	return *e.ErrorCodeOverride
@@ -59,7 +59,7 @@ func (e *ConflictException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ConflictException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ConflictException"
 	}
 	return *e.ErrorCodeOverride
@@ -88,7 +88,7 @@ func (e *InternalServerErrorException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalServerErrorException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalServerErrorException"
 	}
 	return *e.ErrorCodeOverride
@@ -117,7 +117,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -148,7 +148,7 @@ func (e *ServiceQuotaExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ServiceQuotaExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ServiceQuotaExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -177,7 +177,7 @@ func (e *ThrottlingException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ThrottlingException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ThrottlingException"
 	}
 	return *e.ErrorCodeOverride
@@ -206,7 +206,7 @@ func (e *ValidationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ValidationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ValidationException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/oam/types/errors.go b/service/oam/types/errors.go
index 3a878cd5134..b1b7c841d94 100644
--- a/service/oam/types/errors.go
+++ b/service/oam/types/errors.go
@@ -28,7 +28,7 @@ func (e *ConflictException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ConflictException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ConflictException"
 	}
 	return *e.ErrorCodeOverride
@@ -56,7 +56,7 @@ func (e *InternalServiceFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalServiceFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalServiceFault"
 	}
 	return *e.ErrorCodeOverride
@@ -84,7 +84,7 @@ func (e *InvalidParameterException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidParameterException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidParameterException"
 	}
 	return *e.ErrorCodeOverride
@@ -112,7 +112,7 @@ func (e *MissingRequiredParameterException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *MissingRequiredParameterException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "MissingRequiredParameterException"
 	}
 	return *e.ErrorCodeOverride
@@ -140,7 +140,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -168,7 +168,7 @@ func (e *ServiceQuotaExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ServiceQuotaExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ServiceQuotaExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -194,7 +194,7 @@ func (e *TooManyTagsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TooManyTagsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TooManyTagsException"
 	}
 	return *e.ErrorCodeOverride
@@ -220,7 +220,7 @@ func (e *ValidationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ValidationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ValidationException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/omics/types/errors.go b/service/omics/types/errors.go
index 33ce75568cc..23c7c4803b6 100644
--- a/service/omics/types/errors.go
+++ b/service/omics/types/errors.go
@@ -26,7 +26,7 @@ func (e *AccessDeniedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AccessDeniedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AccessDeniedException"
 	}
 	return *e.ErrorCodeOverride
@@ -52,7 +52,7 @@ func (e *ConflictException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ConflictException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ConflictException"
 	}
 	return *e.ErrorCodeOverride
@@ -78,7 +78,7 @@ func (e *InternalServerException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalServerException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalServerException"
 	}
 	return *e.ErrorCodeOverride
@@ -104,7 +104,7 @@ func (e *RangeNotSatisfiableException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *RangeNotSatisfiableException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "RangeNotSatisfiableException"
 	}
 	return *e.ErrorCodeOverride
@@ -130,7 +130,7 @@ func (e *RequestTimeoutException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *RequestTimeoutException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "RequestTimeoutException"
 	}
 	return *e.ErrorCodeOverride
@@ -156,7 +156,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -182,7 +182,7 @@ func (e *ServiceQuotaExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ServiceQuotaExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ServiceQuotaExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -208,7 +208,7 @@ func (e *ThrottlingException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ThrottlingException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ThrottlingException"
 	}
 	return *e.ErrorCodeOverride
@@ -234,7 +234,7 @@ func (e *ValidationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ValidationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ValidationException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/opensearch/types/errors.go b/service/opensearch/types/errors.go
index 9f8449ac128..dd7868355e7 100644
--- a/service/opensearch/types/errors.go
+++ b/service/opensearch/types/errors.go
@@ -26,7 +26,7 @@ func (e *AccessDeniedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AccessDeniedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AccessDeniedException"
 	}
 	return *e.ErrorCodeOverride
@@ -52,7 +52,7 @@ func (e *BaseException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *BaseException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "BaseException"
 	}
 	return *e.ErrorCodeOverride
@@ -79,7 +79,7 @@ func (e *ConflictException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ConflictException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ConflictException"
 	}
 	return *e.ErrorCodeOverride
@@ -105,7 +105,7 @@ func (e *DisabledOperationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DisabledOperationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DisabledOperationException"
 	}
 	return *e.ErrorCodeOverride
@@ -132,7 +132,7 @@ func (e *InternalException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalException"
 	}
 	return *e.ErrorCodeOverride
@@ -159,7 +159,7 @@ func (e *InvalidPaginationTokenException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidPaginationTokenException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidPaginationTokenException"
 	}
 	return *e.ErrorCodeOverride
@@ -186,7 +186,7 @@ func (e *InvalidTypeException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidTypeException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidTypeException"
 	}
 	return *e.ErrorCodeOverride
@@ -213,7 +213,7 @@ func (e *LimitExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *LimitExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "LimitExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -239,7 +239,7 @@ func (e *ResourceAlreadyExistsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceAlreadyExistsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceAlreadyExistsException"
 	}
 	return *e.ErrorCodeOverride
@@ -265,7 +265,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -291,7 +291,7 @@ func (e *ValidationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ValidationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ValidationException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/opensearchserverless/types/errors.go b/service/opensearchserverless/types/errors.go
index 943c94f3028..a37f72cd5c7 100644
--- a/service/opensearchserverless/types/errors.go
+++ b/service/opensearchserverless/types/errors.go
@@ -28,7 +28,7 @@ func (e *ConflictException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ConflictException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ConflictException"
 	}
 	return *e.ErrorCodeOverride
@@ -54,7 +54,7 @@ func (e *InternalServerException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalServerException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalServerException"
 	}
 	return *e.ErrorCodeOverride
@@ -80,7 +80,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -107,7 +107,7 @@ func (e *ValidationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ValidationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ValidationException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/opsworks/types/errors.go b/service/opsworks/types/errors.go
index 790918c7155..4e288235643 100644
--- a/service/opsworks/types/errors.go
+++ b/service/opsworks/types/errors.go
@@ -26,7 +26,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -52,7 +52,7 @@ func (e *ValidationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ValidationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ValidationException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/opsworkscm/types/errors.go b/service/opsworkscm/types/errors.go
index b38810ff7f4..607d90ec4d4 100644
--- a/service/opsworkscm/types/errors.go
+++ b/service/opsworkscm/types/errors.go
@@ -26,7 +26,7 @@ func (e *InvalidNextTokenException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidNextTokenException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidNextTokenException"
 	}
 	return *e.ErrorCodeOverride
@@ -53,7 +53,7 @@ func (e *InvalidStateException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidStateException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidStateException"
 	}
 	return *e.ErrorCodeOverride
@@ -79,7 +79,7 @@ func (e *LimitExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *LimitExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "LimitExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -105,7 +105,7 @@ func (e *ResourceAlreadyExistsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceAlreadyExistsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceAlreadyExistsException"
 	}
 	return *e.ErrorCodeOverride
@@ -131,7 +131,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -157,7 +157,7 @@ func (e *ValidationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ValidationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ValidationException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/organizations/types/errors.go b/service/organizations/types/errors.go
index 4343157216b..cac2aac4a74 100644
--- a/service/organizations/types/errors.go
+++ b/service/organizations/types/errors.go
@@ -30,7 +30,7 @@ func (e *AccessDeniedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AccessDeniedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AccessDeniedException"
 	}
 	return *e.ErrorCodeOverride
@@ -61,7 +61,7 @@ func (e *AccessDeniedForDependencyException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AccessDeniedForDependencyException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AccessDeniedForDependencyException"
 	}
 	return *e.ErrorCodeOverride
@@ -89,7 +89,7 @@ func (e *AccountAlreadyClosedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AccountAlreadyClosedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AccountAlreadyClosedException"
 	}
 	return *e.ErrorCodeOverride
@@ -116,7 +116,7 @@ func (e *AccountAlreadyRegisteredException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AccountAlreadyRegisteredException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AccountAlreadyRegisteredException"
 	}
 	return *e.ErrorCodeOverride
@@ -144,7 +144,7 @@ func (e *AccountNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AccountNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AccountNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -171,7 +171,7 @@ func (e *AccountNotRegisteredException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AccountNotRegisteredException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AccountNotRegisteredException"
 	}
 	return *e.ErrorCodeOverride
@@ -201,7 +201,7 @@ func (e *AccountOwnerNotVerifiedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AccountOwnerNotVerifiedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AccountOwnerNotVerifiedException"
 	}
 	return *e.ErrorCodeOverride
@@ -228,7 +228,7 @@ func (e *AlreadyInOrganizationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AlreadyInOrganizationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AlreadyInOrganizationException"
 	}
 	return *e.ErrorCodeOverride
@@ -255,7 +255,7 @@ func (e *AWSOrganizationsNotInUseException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AWSOrganizationsNotInUseException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AWSOrganizationsNotInUseException"
 	}
 	return *e.ErrorCodeOverride
@@ -282,7 +282,7 @@ func (e *ChildNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ChildNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ChildNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -309,7 +309,7 @@ func (e *ConcurrentModificationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ConcurrentModificationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ConcurrentModificationException"
 	}
 	return *e.ErrorCodeOverride
@@ -336,7 +336,7 @@ func (e *ConflictException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ConflictException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ConflictException"
 	}
 	return *e.ErrorCodeOverride
@@ -537,7 +537,7 @@ func (e *ConstraintViolationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ConstraintViolationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ConstraintViolationException"
 	}
 	return *e.ErrorCodeOverride
@@ -564,7 +564,7 @@ func (e *CreateAccountStatusNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *CreateAccountStatusNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "CreateAccountStatusNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -593,7 +593,7 @@ func (e *DestinationParentNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DestinationParentNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DestinationParentNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -621,7 +621,7 @@ func (e *DuplicateAccountException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DuplicateAccountException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DuplicateAccountException"
 	}
 	return *e.ErrorCodeOverride
@@ -651,7 +651,7 @@ func (e *DuplicateHandshakeException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DuplicateHandshakeException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DuplicateHandshakeException"
 	}
 	return *e.ErrorCodeOverride
@@ -677,7 +677,7 @@ func (e *DuplicateOrganizationalUnitException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DuplicateOrganizationalUnitException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DuplicateOrganizationalUnitException"
 	}
 	return *e.ErrorCodeOverride
@@ -705,7 +705,7 @@ func (e *DuplicatePolicyAttachmentException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DuplicatePolicyAttachmentException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DuplicatePolicyAttachmentException"
 	}
 	return *e.ErrorCodeOverride
@@ -733,7 +733,7 @@ func (e *DuplicatePolicyException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DuplicatePolicyException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DuplicatePolicyException"
 	}
 	return *e.ErrorCodeOverride
@@ -762,7 +762,7 @@ func (e *EffectivePolicyNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *EffectivePolicyNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "EffectivePolicyNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -791,7 +791,7 @@ func (e *FinalizingOrganizationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *FinalizingOrganizationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "FinalizingOrganizationException"
 	}
 	return *e.ErrorCodeOverride
@@ -818,7 +818,7 @@ func (e *HandshakeAlreadyInStateException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *HandshakeAlreadyInStateException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "HandshakeAlreadyInStateException"
 	}
 	return *e.ErrorCodeOverride
@@ -891,7 +891,7 @@ func (e *HandshakeConstraintViolationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *HandshakeConstraintViolationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "HandshakeConstraintViolationException"
 	}
 	return *e.ErrorCodeOverride
@@ -919,7 +919,7 @@ func (e *HandshakeNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *HandshakeNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "HandshakeNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -947,7 +947,7 @@ func (e *InvalidHandshakeTransitionException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidHandshakeTransitionException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidHandshakeTransitionException"
 	}
 	return *e.ErrorCodeOverride
@@ -1060,7 +1060,7 @@ func (e *InvalidInputException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidInputException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidInputException"
 	}
 	return *e.ErrorCodeOverride
@@ -1090,7 +1090,7 @@ func (e *MalformedPolicyDocumentException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *MalformedPolicyDocumentException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "MalformedPolicyDocumentException"
 	}
 	return *e.ErrorCodeOverride
@@ -1118,7 +1118,7 @@ func (e *MasterCannotLeaveOrganizationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *MasterCannotLeaveOrganizationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "MasterCannotLeaveOrganizationException"
 	}
 	return *e.ErrorCodeOverride
@@ -1147,7 +1147,7 @@ func (e *OrganizationalUnitNotEmptyException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *OrganizationalUnitNotEmptyException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "OrganizationalUnitNotEmptyException"
 	}
 	return *e.ErrorCodeOverride
@@ -1175,7 +1175,7 @@ func (e *OrganizationalUnitNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *OrganizationalUnitNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "OrganizationalUnitNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -1205,7 +1205,7 @@ func (e *OrganizationNotEmptyException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *OrganizationNotEmptyException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "OrganizationNotEmptyException"
 	}
 	return *e.ErrorCodeOverride
@@ -1231,7 +1231,7 @@ func (e *ParentNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ParentNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ParentNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -1258,7 +1258,7 @@ func (e *PolicyChangesInProgressException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *PolicyChangesInProgressException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "PolicyChangesInProgressException"
 	}
 	return *e.ErrorCodeOverride
@@ -1285,7 +1285,7 @@ func (e *PolicyInUseException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *PolicyInUseException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "PolicyInUseException"
 	}
 	return *e.ErrorCodeOverride
@@ -1311,7 +1311,7 @@ func (e *PolicyNotAttachedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *PolicyNotAttachedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "PolicyNotAttachedException"
 	}
 	return *e.ErrorCodeOverride
@@ -1337,7 +1337,7 @@ func (e *PolicyNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *PolicyNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "PolicyNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -1363,7 +1363,7 @@ func (e *PolicyTypeAlreadyEnabledException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *PolicyTypeAlreadyEnabledException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "PolicyTypeAlreadyEnabledException"
 	}
 	return *e.ErrorCodeOverride
@@ -1394,7 +1394,7 @@ func (e *PolicyTypeNotAvailableForOrganizationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *PolicyTypeNotAvailableForOrganizationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "PolicyTypeNotAvailableForOrganizationException"
 	}
 	return *e.ErrorCodeOverride
@@ -1427,7 +1427,7 @@ func (e *PolicyTypeNotEnabledException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *PolicyTypeNotEnabledException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "PolicyTypeNotEnabledException"
 	}
 	return *e.ErrorCodeOverride
@@ -1453,7 +1453,7 @@ func (e *ResourcePolicyNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourcePolicyNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourcePolicyNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -1479,7 +1479,7 @@ func (e *RootNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *RootNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "RootNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -1506,7 +1506,7 @@ func (e *ServiceException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ServiceException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ServiceException"
 	}
 	return *e.ErrorCodeOverride
@@ -1532,7 +1532,7 @@ func (e *SourceParentNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *SourceParentNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "SourceParentNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -1559,7 +1559,7 @@ func (e *TargetNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TargetNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TargetNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -1591,7 +1591,7 @@ func (e *TooManyRequestsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TooManyRequestsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TooManyRequestsException"
 	}
 	return *e.ErrorCodeOverride
@@ -1617,7 +1617,7 @@ func (e *UnsupportedAPIEndpointException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *UnsupportedAPIEndpointException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "UnsupportedAPIEndpointException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/outposts/types/errors.go b/service/outposts/types/errors.go
index 2d6a72a42ce..1f7a6a97624 100644
--- a/service/outposts/types/errors.go
+++ b/service/outposts/types/errors.go
@@ -26,7 +26,7 @@ func (e *AccessDeniedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AccessDeniedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AccessDeniedException"
 	}
 	return *e.ErrorCodeOverride
@@ -55,7 +55,7 @@ func (e *ConflictException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ConflictException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ConflictException"
 	}
 	return *e.ErrorCodeOverride
@@ -81,7 +81,7 @@ func (e *InternalServerException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalServerException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalServerException"
 	}
 	return *e.ErrorCodeOverride
@@ -107,7 +107,7 @@ func (e *NotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *NotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "NotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -133,7 +133,7 @@ func (e *ServiceQuotaExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ServiceQuotaExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ServiceQuotaExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -159,7 +159,7 @@ func (e *ValidationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ValidationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ValidationException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/panorama/types/errors.go b/service/panorama/types/errors.go
index fe90140bbd2..ebb603cca72 100644
--- a/service/panorama/types/errors.go
+++ b/service/panorama/types/errors.go
@@ -26,7 +26,7 @@ func (e *AccessDeniedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AccessDeniedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AccessDeniedException"
 	}
 	return *e.ErrorCodeOverride
@@ -57,7 +57,7 @@ func (e *ConflictException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ConflictException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ConflictException"
 	}
 	return *e.ErrorCodeOverride
@@ -85,7 +85,7 @@ func (e *InternalServerException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalServerException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalServerException"
 	}
 	return *e.ErrorCodeOverride
@@ -114,7 +114,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -145,7 +145,7 @@ func (e *ServiceQuotaExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ServiceQuotaExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ServiceQuotaExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -176,7 +176,7 @@ func (e *ValidationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ValidationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ValidationException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/personalize/types/errors.go b/service/personalize/types/errors.go
index c1af84c17f1..a06a7cce11a 100644
--- a/service/personalize/types/errors.go
+++ b/service/personalize/types/errors.go
@@ -26,7 +26,7 @@ func (e *InvalidInputException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidInputException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidInputException"
 	}
 	return *e.ErrorCodeOverride
@@ -52,7 +52,7 @@ func (e *InvalidNextTokenException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidNextTokenException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidNextTokenException"
 	}
 	return *e.ErrorCodeOverride
@@ -78,7 +78,7 @@ func (e *LimitExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *LimitExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "LimitExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -104,7 +104,7 @@ func (e *ResourceAlreadyExistsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceAlreadyExistsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceAlreadyExistsException"
 	}
 	return *e.ErrorCodeOverride
@@ -130,7 +130,7 @@ func (e *ResourceInUseException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceInUseException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceInUseException"
 	}
 	return *e.ErrorCodeOverride
@@ -156,7 +156,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -183,7 +183,7 @@ func (e *TooManyTagKeysException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TooManyTagKeysException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TooManyTagKeysException"
 	}
 	return *e.ErrorCodeOverride
@@ -209,7 +209,7 @@ func (e *TooManyTagsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TooManyTagsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TooManyTagsException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/personalizeevents/types/errors.go b/service/personalizeevents/types/errors.go
index b6ab96a8653..c498c42d729 100644
--- a/service/personalizeevents/types/errors.go
+++ b/service/personalizeevents/types/errors.go
@@ -26,7 +26,7 @@ func (e *InvalidInputException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidInputException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidInputException"
 	}
 	return *e.ErrorCodeOverride
@@ -52,7 +52,7 @@ func (e *ResourceInUseException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceInUseException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceInUseException"
 	}
 	return *e.ErrorCodeOverride
@@ -78,7 +78,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/personalizeruntime/types/errors.go b/service/personalizeruntime/types/errors.go
index 58031bd68aa..c444f7f337e 100644
--- a/service/personalizeruntime/types/errors.go
+++ b/service/personalizeruntime/types/errors.go
@@ -26,7 +26,7 @@ func (e *InvalidInputException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidInputException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidInputException"
 	}
 	return *e.ErrorCodeOverride
@@ -52,7 +52,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/pi/types/errors.go b/service/pi/types/errors.go
index 3936ccaa747..145abdd77f4 100644
--- a/service/pi/types/errors.go
+++ b/service/pi/types/errors.go
@@ -26,7 +26,7 @@ func (e *InternalServiceError) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalServiceError) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalServiceError"
 	}
 	return *e.ErrorCodeOverride
@@ -52,7 +52,7 @@ func (e *InvalidArgumentException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidArgumentException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidArgumentException"
 	}
 	return *e.ErrorCodeOverride
@@ -78,7 +78,7 @@ func (e *NotAuthorizedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *NotAuthorizedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "NotAuthorizedException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/pinpoint/types/errors.go b/service/pinpoint/types/errors.go
index 0110dedfc75..4a97d52581f 100644
--- a/service/pinpoint/types/errors.go
+++ b/service/pinpoint/types/errors.go
@@ -28,7 +28,7 @@ func (e *BadRequestException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *BadRequestException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "BadRequestException"
 	}
 	return *e.ErrorCodeOverride
@@ -56,7 +56,7 @@ func (e *ConflictException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ConflictException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ConflictException"
 	}
 	return *e.ErrorCodeOverride
@@ -84,7 +84,7 @@ func (e *ForbiddenException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ForbiddenException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ForbiddenException"
 	}
 	return *e.ErrorCodeOverride
@@ -112,7 +112,7 @@ func (e *InternalServerErrorException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalServerErrorException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalServerErrorException"
 	}
 	return *e.ErrorCodeOverride
@@ -140,7 +140,7 @@ func (e *MethodNotAllowedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *MethodNotAllowedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "MethodNotAllowedException"
 	}
 	return *e.ErrorCodeOverride
@@ -168,7 +168,7 @@ func (e *NotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *NotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "NotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -196,7 +196,7 @@ func (e *PayloadTooLargeException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *PayloadTooLargeException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "PayloadTooLargeException"
 	}
 	return *e.ErrorCodeOverride
@@ -224,7 +224,7 @@ func (e *TooManyRequestsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TooManyRequestsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TooManyRequestsException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/pinpointemail/types/errors.go b/service/pinpointemail/types/errors.go
index 3be3fa92861..513f30138e7 100644
--- a/service/pinpointemail/types/errors.go
+++ b/service/pinpointemail/types/errors.go
@@ -27,7 +27,7 @@ func (e *AccountSuspendedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AccountSuspendedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AccountSuspendedException"
 	}
 	return *e.ErrorCodeOverride
@@ -53,7 +53,7 @@ func (e *AlreadyExistsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AlreadyExistsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AlreadyExistsException"
 	}
 	return *e.ErrorCodeOverride
@@ -79,7 +79,7 @@ func (e *BadRequestException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *BadRequestException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "BadRequestException"
 	}
 	return *e.ErrorCodeOverride
@@ -105,7 +105,7 @@ func (e *ConcurrentModificationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ConcurrentModificationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ConcurrentModificationException"
 	}
 	return *e.ErrorCodeOverride
@@ -131,7 +131,7 @@ func (e *LimitExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *LimitExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "LimitExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -157,7 +157,7 @@ func (e *MailFromDomainNotVerifiedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *MailFromDomainNotVerifiedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "MailFromDomainNotVerifiedException"
 	}
 	return *e.ErrorCodeOverride
@@ -185,7 +185,7 @@ func (e *MessageRejected) ErrorMessage() string {
 	return *e.Message
 }
 func (e *MessageRejected) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "MessageRejected"
 	}
 	return *e.ErrorCodeOverride
@@ -211,7 +211,7 @@ func (e *NotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *NotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "NotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -238,7 +238,7 @@ func (e *SendingPausedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *SendingPausedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "SendingPausedException"
 	}
 	return *e.ErrorCodeOverride
@@ -264,7 +264,7 @@ func (e *TooManyRequestsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TooManyRequestsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TooManyRequestsException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/pinpointsmsvoice/types/errors.go b/service/pinpointsmsvoice/types/errors.go
index 832c1051ad5..5ea3196fea4 100644
--- a/service/pinpointsmsvoice/types/errors.go
+++ b/service/pinpointsmsvoice/types/errors.go
@@ -26,7 +26,7 @@ func (e *AlreadyExistsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AlreadyExistsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AlreadyExistsException"
 	}
 	return *e.ErrorCodeOverride
@@ -52,7 +52,7 @@ func (e *BadRequestException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *BadRequestException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "BadRequestException"
 	}
 	return *e.ErrorCodeOverride
@@ -79,7 +79,7 @@ func (e *InternalServiceErrorException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalServiceErrorException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalServiceErrorException"
 	}
 	return *e.ErrorCodeOverride
@@ -105,7 +105,7 @@ func (e *LimitExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *LimitExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "LimitExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -131,7 +131,7 @@ func (e *NotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *NotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "NotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -158,7 +158,7 @@ func (e *TooManyRequestsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TooManyRequestsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TooManyRequestsException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/pinpointsmsvoicev2/types/errors.go b/service/pinpointsmsvoicev2/types/errors.go
index 3b0305cd900..8d997a2a1ea 100644
--- a/service/pinpointsmsvoicev2/types/errors.go
+++ b/service/pinpointsmsvoicev2/types/errors.go
@@ -29,7 +29,7 @@ func (e *AccessDeniedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AccessDeniedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AccessDeniedException"
 	}
 	return *e.ErrorCodeOverride
@@ -62,7 +62,7 @@ func (e *ConflictException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ConflictException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ConflictException"
 	}
 	return *e.ErrorCodeOverride
@@ -91,7 +91,7 @@ func (e *InternalServerException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalServerException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalServerException"
 	}
 	return *e.ErrorCodeOverride
@@ -120,7 +120,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -148,7 +148,7 @@ func (e *ServiceQuotaExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ServiceQuotaExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ServiceQuotaExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -175,7 +175,7 @@ func (e *ThrottlingException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ThrottlingException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ThrottlingException"
 	}
 	return *e.ErrorCodeOverride
@@ -204,7 +204,7 @@ func (e *ValidationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ValidationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ValidationException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/pipes/types/errors.go b/service/pipes/types/errors.go
index cefcad660e1..bab77b9e291 100644
--- a/service/pipes/types/errors.go
+++ b/service/pipes/types/errors.go
@@ -29,7 +29,7 @@ func (e *ConflictException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ConflictException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ConflictException"
 	}
 	return *e.ErrorCodeOverride
@@ -57,7 +57,7 @@ func (e *InternalException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalException"
 	}
 	return *e.ErrorCodeOverride
@@ -83,7 +83,7 @@ func (e *NotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *NotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "NotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -114,7 +114,7 @@ func (e *ServiceQuotaExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ServiceQuotaExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ServiceQuotaExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -144,7 +144,7 @@ func (e *ThrottlingException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ThrottlingException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ThrottlingException"
 	}
 	return *e.ErrorCodeOverride
@@ -172,7 +172,7 @@ func (e *ValidationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ValidationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ValidationException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/polly/types/errors.go b/service/polly/types/errors.go
index 2b1a44eb5f6..cd775f0be5a 100644
--- a/service/polly/types/errors.go
+++ b/service/polly/types/errors.go
@@ -28,7 +28,7 @@ func (e *EngineNotSupportedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *EngineNotSupportedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "EngineNotSupportedException"
 	}
 	return *e.ErrorCodeOverride
@@ -55,7 +55,7 @@ func (e *InvalidLexiconException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidLexiconException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidLexiconException"
 	}
 	return *e.ErrorCodeOverride
@@ -82,7 +82,7 @@ func (e *InvalidNextTokenException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidNextTokenException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidNextTokenException"
 	}
 	return *e.ErrorCodeOverride
@@ -109,7 +109,7 @@ func (e *InvalidS3BucketException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidS3BucketException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidS3BucketException"
 	}
 	return *e.ErrorCodeOverride
@@ -136,7 +136,7 @@ func (e *InvalidS3KeyException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidS3KeyException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidS3KeyException"
 	}
 	return *e.ErrorCodeOverride
@@ -162,7 +162,7 @@ func (e *InvalidSampleRateException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidSampleRateException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidSampleRateException"
 	}
 	return *e.ErrorCodeOverride
@@ -189,7 +189,7 @@ func (e *InvalidSnsTopicArnException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidSnsTopicArnException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidSnsTopicArnException"
 	}
 	return *e.ErrorCodeOverride
@@ -216,7 +216,7 @@ func (e *InvalidSsmlException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidSsmlException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidSsmlException"
 	}
 	return *e.ErrorCodeOverride
@@ -242,7 +242,7 @@ func (e *InvalidTaskIdException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidTaskIdException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidTaskIdException"
 	}
 	return *e.ErrorCodeOverride
@@ -269,7 +269,7 @@ func (e *LanguageNotSupportedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *LanguageNotSupportedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "LanguageNotSupportedException"
 	}
 	return *e.ErrorCodeOverride
@@ -299,7 +299,7 @@ func (e *LexiconNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *LexiconNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "LexiconNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -325,7 +325,7 @@ func (e *LexiconSizeExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *LexiconSizeExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "LexiconSizeExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -352,7 +352,7 @@ func (e *MarksNotSupportedForFormatException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *MarksNotSupportedForFormatException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "MarksNotSupportedForFormatException"
 	}
 	return *e.ErrorCodeOverride
@@ -380,7 +380,7 @@ func (e *MaxLexemeLengthExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *MaxLexemeLengthExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "MaxLexemeLengthExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -406,7 +406,7 @@ func (e *MaxLexiconsNumberExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *MaxLexiconsNumberExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "MaxLexiconsNumberExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -434,7 +434,7 @@ func (e *ServiceFailureException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ServiceFailureException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ServiceFailureException"
 	}
 	return *e.ErrorCodeOverride
@@ -460,7 +460,7 @@ func (e *SsmlMarksNotSupportedForTextTypeException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *SsmlMarksNotSupportedForTextTypeException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "SsmlMarksNotSupportedForTextTypeException"
 	}
 	return *e.ErrorCodeOverride
@@ -488,7 +488,7 @@ func (e *SynthesisTaskNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *SynthesisTaskNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "SynthesisTaskNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -519,7 +519,7 @@ func (e *TextLengthExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TextLengthExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TextLengthExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -546,7 +546,7 @@ func (e *UnsupportedPlsAlphabetException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *UnsupportedPlsAlphabetException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "UnsupportedPlsAlphabetException"
 	}
 	return *e.ErrorCodeOverride
@@ -574,7 +574,7 @@ func (e *UnsupportedPlsLanguageException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *UnsupportedPlsLanguageException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "UnsupportedPlsLanguageException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/pricing/types/errors.go b/service/pricing/types/errors.go
index aebbdd02a36..a3d427e3bed 100644
--- a/service/pricing/types/errors.go
+++ b/service/pricing/types/errors.go
@@ -26,7 +26,7 @@ func (e *ExpiredNextTokenException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ExpiredNextTokenException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ExpiredNextTokenException"
 	}
 	return *e.ErrorCodeOverride
@@ -53,7 +53,7 @@ func (e *InternalErrorException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalErrorException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalErrorException"
 	}
 	return *e.ErrorCodeOverride
@@ -79,7 +79,7 @@ func (e *InvalidNextTokenException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidNextTokenException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidNextTokenException"
 	}
 	return *e.ErrorCodeOverride
@@ -105,7 +105,7 @@ func (e *InvalidParameterException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidParameterException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidParameterException"
 	}
 	return *e.ErrorCodeOverride
@@ -131,7 +131,7 @@ func (e *NotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *NotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "NotFoundException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/privatenetworks/types/errors.go b/service/privatenetworks/types/errors.go
index c90c8c6cac5..68149cbb606 100644
--- a/service/privatenetworks/types/errors.go
+++ b/service/privatenetworks/types/errors.go
@@ -26,7 +26,7 @@ func (e *AccessDeniedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AccessDeniedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AccessDeniedException"
 	}
 	return *e.ErrorCodeOverride
@@ -54,7 +54,7 @@ func (e *InternalServerException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalServerException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalServerException"
 	}
 	return *e.ErrorCodeOverride
@@ -80,7 +80,7 @@ func (e *LimitExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *LimitExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "LimitExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -109,7 +109,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -135,7 +135,7 @@ func (e *ThrottlingException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ThrottlingException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ThrottlingException"
 	}
 	return *e.ErrorCodeOverride
@@ -164,7 +164,7 @@ func (e *ValidationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ValidationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ValidationException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/proton/types/errors.go b/service/proton/types/errors.go
index 7c5e4cdb2bb..d7229be0901 100644
--- a/service/proton/types/errors.go
+++ b/service/proton/types/errors.go
@@ -26,7 +26,7 @@ func (e *AccessDeniedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AccessDeniedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AccessDeniedException"
 	}
 	return *e.ErrorCodeOverride
@@ -52,7 +52,7 @@ func (e *ConflictException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ConflictException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ConflictException"
 	}
 	return *e.ErrorCodeOverride
@@ -78,7 +78,7 @@ func (e *InternalServerException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalServerException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalServerException"
 	}
 	return *e.ErrorCodeOverride
@@ -104,7 +104,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -132,7 +132,7 @@ func (e *ServiceQuotaExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ServiceQuotaExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ServiceQuotaExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -158,7 +158,7 @@ func (e *ThrottlingException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ThrottlingException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ThrottlingException"
 	}
 	return *e.ErrorCodeOverride
@@ -185,7 +185,7 @@ func (e *ValidationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ValidationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ValidationException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/qldb/types/errors.go b/service/qldb/types/errors.go
index a1da465cd94..9f36d2dbf5e 100644
--- a/service/qldb/types/errors.go
+++ b/service/qldb/types/errors.go
@@ -28,7 +28,7 @@ func (e *InvalidParameterException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidParameterException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidParameterException"
 	}
 	return *e.ErrorCodeOverride
@@ -56,7 +56,7 @@ func (e *LimitExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *LimitExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "LimitExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -85,7 +85,7 @@ func (e *ResourceAlreadyExistsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceAlreadyExistsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceAlreadyExistsException"
 	}
 	return *e.ErrorCodeOverride
@@ -114,7 +114,7 @@ func (e *ResourceInUseException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceInUseException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceInUseException"
 	}
 	return *e.ErrorCodeOverride
@@ -143,7 +143,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -172,7 +172,7 @@ func (e *ResourcePreconditionNotMetException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourcePreconditionNotMetException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourcePreconditionNotMetException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/qldbsession/types/errors.go b/service/qldbsession/types/errors.go
index 242f123b0c1..93287376524 100644
--- a/service/qldbsession/types/errors.go
+++ b/service/qldbsession/types/errors.go
@@ -29,7 +29,7 @@ func (e *BadRequestException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *BadRequestException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "BadRequestException"
 	}
 	return *e.ErrorCodeOverride
@@ -55,7 +55,7 @@ func (e *CapacityExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *CapacityExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "CapacityExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -83,7 +83,7 @@ func (e *InvalidSessionException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidSessionException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidSessionException"
 	}
 	return *e.ErrorCodeOverride
@@ -109,7 +109,7 @@ func (e *LimitExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *LimitExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "LimitExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -136,7 +136,7 @@ func (e *OccConflictException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *OccConflictException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "OccConflictException"
 	}
 	return *e.ErrorCodeOverride
@@ -162,7 +162,7 @@ func (e *RateExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *RateExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "RateExceededException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/quicksight/types/errors.go b/service/quicksight/types/errors.go
index 04c097a77f1..eeb2a6f65bd 100644
--- a/service/quicksight/types/errors.go
+++ b/service/quicksight/types/errors.go
@@ -32,7 +32,7 @@ func (e *AccessDeniedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AccessDeniedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AccessDeniedException"
 	}
 	return *e.ErrorCodeOverride
@@ -61,7 +61,7 @@ func (e *ConcurrentUpdatingException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ConcurrentUpdatingException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ConcurrentUpdatingException"
 	}
 	return *e.ErrorCodeOverride
@@ -89,7 +89,7 @@ func (e *ConflictException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ConflictException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ConflictException"
 	}
 	return *e.ErrorCodeOverride
@@ -118,7 +118,7 @@ func (e *DomainNotWhitelistedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DomainNotWhitelistedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DomainNotWhitelistedException"
 	}
 	return *e.ErrorCodeOverride
@@ -147,7 +147,7 @@ func (e *IdentityTypeNotSupportedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *IdentityTypeNotSupportedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "IdentityTypeNotSupportedException"
 	}
 	return *e.ErrorCodeOverride
@@ -175,7 +175,7 @@ func (e *InternalFailureException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalFailureException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalFailureException"
 	}
 	return *e.ErrorCodeOverride
@@ -203,7 +203,7 @@ func (e *InvalidNextTokenException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidNextTokenException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidNextTokenException"
 	}
 	return *e.ErrorCodeOverride
@@ -231,7 +231,7 @@ func (e *InvalidParameterValueException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidParameterValueException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidParameterValueException"
 	}
 	return *e.ErrorCodeOverride
@@ -260,7 +260,7 @@ func (e *InvalidRequestException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidRequestException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidRequestException"
 	}
 	return *e.ErrorCodeOverride
@@ -289,7 +289,7 @@ func (e *LimitExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *LimitExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "LimitExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -317,7 +317,7 @@ func (e *PreconditionNotMetException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *PreconditionNotMetException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "PreconditionNotMetException"
 	}
 	return *e.ErrorCodeOverride
@@ -347,7 +347,7 @@ func (e *QuickSightUserNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *QuickSightUserNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "QuickSightUserNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -376,7 +376,7 @@ func (e *ResourceExistsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceExistsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceExistsException"
 	}
 	return *e.ErrorCodeOverride
@@ -405,7 +405,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -434,7 +434,7 @@ func (e *ResourceUnavailableException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceUnavailableException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceUnavailableException"
 	}
 	return *e.ErrorCodeOverride
@@ -463,7 +463,7 @@ func (e *SessionLifetimeInMinutesInvalidException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *SessionLifetimeInMinutesInvalidException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "SessionLifetimeInMinutesInvalidException"
 	}
 	return *e.ErrorCodeOverride
@@ -493,7 +493,7 @@ func (e *ThrottlingException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ThrottlingException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ThrottlingException"
 	}
 	return *e.ErrorCodeOverride
@@ -528,7 +528,7 @@ func (e *UnsupportedPricingPlanException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *UnsupportedPricingPlanException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "UnsupportedPricingPlanException"
 	}
 	return *e.ErrorCodeOverride
@@ -559,7 +559,7 @@ func (e *UnsupportedUserEditionException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *UnsupportedUserEditionException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "UnsupportedUserEditionException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/ram/types/errors.go b/service/ram/types/errors.go
index 55300682965..76125ffe793 100644
--- a/service/ram/types/errors.go
+++ b/service/ram/types/errors.go
@@ -28,7 +28,7 @@ func (e *IdempotentParameterMismatchException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *IdempotentParameterMismatchException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "IdempotentParameterMismatchException"
 	}
 	return *e.ErrorCodeOverride
@@ -56,7 +56,7 @@ func (e *InvalidClientTokenException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidClientTokenException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidClientTokenException"
 	}
 	return *e.ErrorCodeOverride
@@ -82,7 +82,7 @@ func (e *InvalidMaxResultsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidMaxResultsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidMaxResultsException"
 	}
 	return *e.ErrorCodeOverride
@@ -108,7 +108,7 @@ func (e *InvalidNextTokenException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidNextTokenException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidNextTokenException"
 	}
 	return *e.ErrorCodeOverride
@@ -134,7 +134,7 @@ func (e *InvalidParameterException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidParameterException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidParameterException"
 	}
 	return *e.ErrorCodeOverride
@@ -160,7 +160,7 @@ func (e *InvalidResourceTypeException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidResourceTypeException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidResourceTypeException"
 	}
 	return *e.ErrorCodeOverride
@@ -186,7 +186,7 @@ func (e *InvalidStateTransitionException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidStateTransitionException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidStateTransitionException"
 	}
 	return *e.ErrorCodeOverride
@@ -212,7 +212,7 @@ func (e *MalformedArnException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *MalformedArnException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "MalformedArnException"
 	}
 	return *e.ErrorCodeOverride
@@ -238,7 +238,7 @@ func (e *MissingRequiredParameterException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *MissingRequiredParameterException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "MissingRequiredParameterException"
 	}
 	return *e.ErrorCodeOverride
@@ -264,7 +264,7 @@ func (e *OperationNotPermittedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *OperationNotPermittedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "OperationNotPermittedException"
 	}
 	return *e.ErrorCodeOverride
@@ -290,7 +290,7 @@ func (e *ResourceArnNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceArnNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceArnNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -316,7 +316,7 @@ func (e *ResourceShareInvitationAlreadyAcceptedException) ErrorMessage() string
 	return *e.Message
 }
 func (e *ResourceShareInvitationAlreadyAcceptedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceShareInvitationAlreadyAcceptedException"
 	}
 	return *e.ErrorCodeOverride
@@ -344,7 +344,7 @@ func (e *ResourceShareInvitationAlreadyRejectedException) ErrorMessage() string
 	return *e.Message
 }
 func (e *ResourceShareInvitationAlreadyRejectedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceShareInvitationAlreadyRejectedException"
 	}
 	return *e.ErrorCodeOverride
@@ -372,7 +372,7 @@ func (e *ResourceShareInvitationArnNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceShareInvitationArnNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceShareInvitationArnNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -400,7 +400,7 @@ func (e *ResourceShareInvitationExpiredException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceShareInvitationExpiredException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceShareInvitationExpiredException"
 	}
 	return *e.ErrorCodeOverride
@@ -428,7 +428,7 @@ func (e *ResourceShareLimitExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceShareLimitExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceShareLimitExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -456,7 +456,7 @@ func (e *ServerInternalException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ServerInternalException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ServerInternalException"
 	}
 	return *e.ErrorCodeOverride
@@ -482,7 +482,7 @@ func (e *ServiceUnavailableException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ServiceUnavailableException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ServiceUnavailableException"
 	}
 	return *e.ErrorCodeOverride
@@ -508,7 +508,7 @@ func (e *TagLimitExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TagLimitExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TagLimitExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -534,7 +534,7 @@ func (e *TagPolicyViolationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TagPolicyViolationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TagPolicyViolationException"
 	}
 	return *e.ErrorCodeOverride
@@ -561,7 +561,7 @@ func (e *ThrottlingException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ThrottlingException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ThrottlingException"
 	}
 	return *e.ErrorCodeOverride
@@ -587,7 +587,7 @@ func (e *UnknownResourceException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *UnknownResourceException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "UnknownResourceException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/rbin/types/errors.go b/service/rbin/types/errors.go
index 84dfadfe250..0314531929f 100644
--- a/service/rbin/types/errors.go
+++ b/service/rbin/types/errors.go
@@ -28,7 +28,7 @@ func (e *ConflictException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ConflictException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ConflictException"
 	}
 	return *e.ErrorCodeOverride
@@ -54,7 +54,7 @@ func (e *InternalServerException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalServerException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalServerException"
 	}
 	return *e.ErrorCodeOverride
@@ -82,7 +82,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -111,7 +111,7 @@ func (e *ServiceQuotaExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ServiceQuotaExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ServiceQuotaExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -139,7 +139,7 @@ func (e *ValidationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ValidationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ValidationException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/rds/types/errors.go b/service/rds/types/errors.go
index f25cd55b6c6..91353c40497 100644
--- a/service/rds/types/errors.go
+++ b/service/rds/types/errors.go
@@ -27,7 +27,7 @@ func (e *AuthorizationAlreadyExistsFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AuthorizationAlreadyExistsFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AuthorizationAlreadyExists"
 	}
 	return *e.ErrorCodeOverride
@@ -55,7 +55,7 @@ func (e *AuthorizationNotFoundFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AuthorizationNotFoundFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AuthorizationNotFound"
 	}
 	return *e.ErrorCodeOverride
@@ -81,7 +81,7 @@ func (e *AuthorizationQuotaExceededFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AuthorizationQuotaExceededFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AuthorizationQuotaExceeded"
 	}
 	return *e.ErrorCodeOverride
@@ -106,7 +106,7 @@ func (e *BackupPolicyNotFoundFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *BackupPolicyNotFoundFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "BackupPolicyNotFoundFault"
 	}
 	return *e.ErrorCodeOverride
@@ -132,7 +132,7 @@ func (e *BlueGreenDeploymentAlreadyExistsFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *BlueGreenDeploymentAlreadyExistsFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "BlueGreenDeploymentAlreadyExistsFault"
 	}
 	return *e.ErrorCodeOverride
@@ -161,7 +161,7 @@ func (e *BlueGreenDeploymentNotFoundFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *BlueGreenDeploymentNotFoundFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "BlueGreenDeploymentNotFoundFault"
 	}
 	return *e.ErrorCodeOverride
@@ -187,7 +187,7 @@ func (e *CertificateNotFoundFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *CertificateNotFoundFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "CertificateNotFound"
 	}
 	return *e.ErrorCodeOverride
@@ -214,7 +214,7 @@ func (e *CustomAvailabilityZoneNotFoundFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *CustomAvailabilityZoneNotFoundFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "CustomAvailabilityZoneNotFound"
 	}
 	return *e.ErrorCodeOverride
@@ -242,7 +242,7 @@ func (e *CustomDBEngineVersionAlreadyExistsFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *CustomDBEngineVersionAlreadyExistsFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "CustomDBEngineVersionAlreadyExistsFault"
 	}
 	return *e.ErrorCodeOverride
@@ -270,7 +270,7 @@ func (e *CustomDBEngineVersionNotFoundFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *CustomDBEngineVersionNotFoundFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "CustomDBEngineVersionNotFoundFault"
 	}
 	return *e.ErrorCodeOverride
@@ -298,7 +298,7 @@ func (e *CustomDBEngineVersionQuotaExceededFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *CustomDBEngineVersionQuotaExceededFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "CustomDBEngineVersionQuotaExceededFault"
 	}
 	return *e.ErrorCodeOverride
@@ -326,7 +326,7 @@ func (e *DBClusterAlreadyExistsFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DBClusterAlreadyExistsFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DBClusterAlreadyExistsFault"
 	}
 	return *e.ErrorCodeOverride
@@ -352,7 +352,7 @@ func (e *DBClusterBacktrackNotFoundFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DBClusterBacktrackNotFoundFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DBClusterBacktrackNotFoundFault"
 	}
 	return *e.ErrorCodeOverride
@@ -378,7 +378,7 @@ func (e *DBClusterEndpointAlreadyExistsFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DBClusterEndpointAlreadyExistsFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DBClusterEndpointAlreadyExistsFault"
 	}
 	return *e.ErrorCodeOverride
@@ -406,7 +406,7 @@ func (e *DBClusterEndpointNotFoundFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DBClusterEndpointNotFoundFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DBClusterEndpointNotFoundFault"
 	}
 	return *e.ErrorCodeOverride
@@ -432,7 +432,7 @@ func (e *DBClusterEndpointQuotaExceededFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DBClusterEndpointQuotaExceededFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DBClusterEndpointQuotaExceededFault"
 	}
 	return *e.ErrorCodeOverride
@@ -460,7 +460,7 @@ func (e *DBClusterNotFoundFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DBClusterNotFoundFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DBClusterNotFoundFault"
 	}
 	return *e.ErrorCodeOverride
@@ -487,7 +487,7 @@ func (e *DBClusterParameterGroupNotFoundFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DBClusterParameterGroupNotFoundFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DBClusterParameterGroupNotFound"
 	}
 	return *e.ErrorCodeOverride
@@ -516,7 +516,7 @@ func (e *DBClusterQuotaExceededFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DBClusterQuotaExceededFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DBClusterQuotaExceededFault"
 	}
 	return *e.ErrorCodeOverride
@@ -543,7 +543,7 @@ func (e *DBClusterRoleAlreadyExistsFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DBClusterRoleAlreadyExistsFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DBClusterRoleAlreadyExists"
 	}
 	return *e.ErrorCodeOverride
@@ -570,7 +570,7 @@ func (e *DBClusterRoleNotFoundFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DBClusterRoleNotFoundFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DBClusterRoleNotFound"
 	}
 	return *e.ErrorCodeOverride
@@ -597,7 +597,7 @@ func (e *DBClusterRoleQuotaExceededFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DBClusterRoleQuotaExceededFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DBClusterRoleQuotaExceeded"
 	}
 	return *e.ErrorCodeOverride
@@ -623,7 +623,7 @@ func (e *DBClusterSnapshotAlreadyExistsFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DBClusterSnapshotAlreadyExistsFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DBClusterSnapshotAlreadyExistsFault"
 	}
 	return *e.ErrorCodeOverride
@@ -651,7 +651,7 @@ func (e *DBClusterSnapshotNotFoundFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DBClusterSnapshotNotFoundFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DBClusterSnapshotNotFoundFault"
 	}
 	return *e.ErrorCodeOverride
@@ -677,7 +677,7 @@ func (e *DBInstanceAlreadyExistsFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DBInstanceAlreadyExistsFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DBInstanceAlreadyExists"
 	}
 	return *e.ErrorCodeOverride
@@ -703,7 +703,7 @@ func (e *DBInstanceAutomatedBackupNotFoundFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DBInstanceAutomatedBackupNotFoundFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DBInstanceAutomatedBackupNotFound"
 	}
 	return *e.ErrorCodeOverride
@@ -733,7 +733,7 @@ func (e *DBInstanceAutomatedBackupQuotaExceededFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DBInstanceAutomatedBackupQuotaExceededFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DBInstanceAutomatedBackupQuotaExceeded"
 	}
 	return *e.ErrorCodeOverride
@@ -761,7 +761,7 @@ func (e *DBInstanceNotFoundFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DBInstanceNotFoundFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DBInstanceNotFound"
 	}
 	return *e.ErrorCodeOverride
@@ -788,7 +788,7 @@ func (e *DBInstanceRoleAlreadyExistsFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DBInstanceRoleAlreadyExistsFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DBInstanceRoleAlreadyExists"
 	}
 	return *e.ErrorCodeOverride
@@ -815,7 +815,7 @@ func (e *DBInstanceRoleNotFoundFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DBInstanceRoleNotFoundFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DBInstanceRoleNotFound"
 	}
 	return *e.ErrorCodeOverride
@@ -842,7 +842,7 @@ func (e *DBInstanceRoleQuotaExceededFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DBInstanceRoleQuotaExceededFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DBInstanceRoleQuotaExceeded"
 	}
 	return *e.ErrorCodeOverride
@@ -868,7 +868,7 @@ func (e *DBLogFileNotFoundFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DBLogFileNotFoundFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DBLogFileNotFoundFault"
 	}
 	return *e.ErrorCodeOverride
@@ -894,7 +894,7 @@ func (e *DBParameterGroupAlreadyExistsFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DBParameterGroupAlreadyExistsFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DBParameterGroupAlreadyExists"
 	}
 	return *e.ErrorCodeOverride
@@ -922,7 +922,7 @@ func (e *DBParameterGroupNotFoundFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DBParameterGroupNotFoundFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DBParameterGroupNotFound"
 	}
 	return *e.ErrorCodeOverride
@@ -949,7 +949,7 @@ func (e *DBParameterGroupQuotaExceededFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DBParameterGroupQuotaExceededFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DBParameterGroupQuotaExceeded"
 	}
 	return *e.ErrorCodeOverride
@@ -978,7 +978,7 @@ func (e *DBProxyAlreadyExistsFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DBProxyAlreadyExistsFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DBProxyAlreadyExistsFault"
 	}
 	return *e.ErrorCodeOverride
@@ -1006,7 +1006,7 @@ func (e *DBProxyEndpointAlreadyExistsFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DBProxyEndpointAlreadyExistsFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DBProxyEndpointAlreadyExistsFault"
 	}
 	return *e.ErrorCodeOverride
@@ -1032,7 +1032,7 @@ func (e *DBProxyEndpointNotFoundFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DBProxyEndpointNotFoundFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DBProxyEndpointNotFoundFault"
 	}
 	return *e.ErrorCodeOverride
@@ -1058,7 +1058,7 @@ func (e *DBProxyEndpointQuotaExceededFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DBProxyEndpointQuotaExceededFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DBProxyEndpointQuotaExceededFault"
 	}
 	return *e.ErrorCodeOverride
@@ -1085,7 +1085,7 @@ func (e *DBProxyNotFoundFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DBProxyNotFoundFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DBProxyNotFoundFault"
 	}
 	return *e.ErrorCodeOverride
@@ -1112,7 +1112,7 @@ func (e *DBProxyQuotaExceededFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DBProxyQuotaExceededFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DBProxyQuotaExceededFault"
 	}
 	return *e.ErrorCodeOverride
@@ -1139,7 +1139,7 @@ func (e *DBProxyTargetAlreadyRegisteredFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DBProxyTargetAlreadyRegisteredFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DBProxyTargetAlreadyRegisteredFault"
 	}
 	return *e.ErrorCodeOverride
@@ -1168,7 +1168,7 @@ func (e *DBProxyTargetGroupNotFoundFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DBProxyTargetGroupNotFoundFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DBProxyTargetGroupNotFoundFault"
 	}
 	return *e.ErrorCodeOverride
@@ -1196,7 +1196,7 @@ func (e *DBProxyTargetNotFoundFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DBProxyTargetNotFoundFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DBProxyTargetNotFoundFault"
 	}
 	return *e.ErrorCodeOverride
@@ -1223,7 +1223,7 @@ func (e *DBSecurityGroupAlreadyExistsFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DBSecurityGroupAlreadyExistsFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DBSecurityGroupAlreadyExists"
 	}
 	return *e.ErrorCodeOverride
@@ -1249,7 +1249,7 @@ func (e *DBSecurityGroupNotFoundFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DBSecurityGroupNotFoundFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DBSecurityGroupNotFound"
 	}
 	return *e.ErrorCodeOverride
@@ -1275,7 +1275,7 @@ func (e *DBSecurityGroupNotSupportedFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DBSecurityGroupNotSupportedFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DBSecurityGroupNotSupported"
 	}
 	return *e.ErrorCodeOverride
@@ -1302,7 +1302,7 @@ func (e *DBSecurityGroupQuotaExceededFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DBSecurityGroupQuotaExceededFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "QuotaExceeded.DBSecurityGroup"
 	}
 	return *e.ErrorCodeOverride
@@ -1328,7 +1328,7 @@ func (e *DBSnapshotAlreadyExistsFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DBSnapshotAlreadyExistsFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DBSnapshotAlreadyExists"
 	}
 	return *e.ErrorCodeOverride
@@ -1354,7 +1354,7 @@ func (e *DBSnapshotNotFoundFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DBSnapshotNotFoundFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DBSnapshotNotFound"
 	}
 	return *e.ErrorCodeOverride
@@ -1380,7 +1380,7 @@ func (e *DBSubnetGroupAlreadyExistsFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DBSubnetGroupAlreadyExistsFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DBSubnetGroupAlreadyExists"
 	}
 	return *e.ErrorCodeOverride
@@ -1407,7 +1407,7 @@ func (e *DBSubnetGroupDoesNotCoverEnoughAZs) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DBSubnetGroupDoesNotCoverEnoughAZs) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DBSubnetGroupDoesNotCoverEnoughAZs"
 	}
 	return *e.ErrorCodeOverride
@@ -1436,7 +1436,7 @@ func (e *DBSubnetGroupNotAllowedFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DBSubnetGroupNotAllowedFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DBSubnetGroupNotAllowedFault"
 	}
 	return *e.ErrorCodeOverride
@@ -1462,7 +1462,7 @@ func (e *DBSubnetGroupNotFoundFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DBSubnetGroupNotFoundFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DBSubnetGroupNotFoundFault"
 	}
 	return *e.ErrorCodeOverride
@@ -1489,7 +1489,7 @@ func (e *DBSubnetGroupQuotaExceededFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DBSubnetGroupQuotaExceededFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DBSubnetGroupQuotaExceeded"
 	}
 	return *e.ErrorCodeOverride
@@ -1516,7 +1516,7 @@ func (e *DBSubnetQuotaExceededFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DBSubnetQuotaExceededFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DBSubnetQuotaExceededFault"
 	}
 	return *e.ErrorCodeOverride
@@ -1542,7 +1542,7 @@ func (e *DBUpgradeDependencyFailureFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DBUpgradeDependencyFailureFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DBUpgradeDependencyFailure"
 	}
 	return *e.ErrorCodeOverride
@@ -1568,7 +1568,7 @@ func (e *DomainNotFoundFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DomainNotFoundFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DomainNotFoundFault"
 	}
 	return *e.ErrorCodeOverride
@@ -1594,7 +1594,7 @@ func (e *Ec2ImagePropertiesNotSupportedFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *Ec2ImagePropertiesNotSupportedFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "Ec2ImagePropertiesNotSupportedFault"
 	}
 	return *e.ErrorCodeOverride
@@ -1622,7 +1622,7 @@ func (e *EventSubscriptionQuotaExceededFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *EventSubscriptionQuotaExceededFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "EventSubscriptionQuotaExceeded"
 	}
 	return *e.ErrorCodeOverride
@@ -1650,7 +1650,7 @@ func (e *ExportTaskAlreadyExistsFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ExportTaskAlreadyExistsFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ExportTaskAlreadyExists"
 	}
 	return *e.ErrorCodeOverride
@@ -1676,7 +1676,7 @@ func (e *ExportTaskNotFoundFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ExportTaskNotFoundFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ExportTaskNotFound"
 	}
 	return *e.ErrorCodeOverride
@@ -1703,7 +1703,7 @@ func (e *GlobalClusterAlreadyExistsFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *GlobalClusterAlreadyExistsFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "GlobalClusterAlreadyExistsFault"
 	}
 	return *e.ErrorCodeOverride
@@ -1730,7 +1730,7 @@ func (e *GlobalClusterNotFoundFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *GlobalClusterNotFoundFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "GlobalClusterNotFoundFault"
 	}
 	return *e.ErrorCodeOverride
@@ -1757,7 +1757,7 @@ func (e *GlobalClusterQuotaExceededFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *GlobalClusterQuotaExceededFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "GlobalClusterQuotaExceededFault"
 	}
 	return *e.ErrorCodeOverride
@@ -1783,7 +1783,7 @@ func (e *IamRoleMissingPermissionsFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *IamRoleMissingPermissionsFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "IamRoleMissingPermissions"
 	}
 	return *e.ErrorCodeOverride
@@ -1809,7 +1809,7 @@ func (e *IamRoleNotFoundFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *IamRoleNotFoundFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "IamRoleNotFound"
 	}
 	return *e.ErrorCodeOverride
@@ -1836,7 +1836,7 @@ func (e *InstanceQuotaExceededFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InstanceQuotaExceededFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InstanceQuotaExceeded"
 	}
 	return *e.ErrorCodeOverride
@@ -1864,7 +1864,7 @@ func (e *InsufficientAvailableIPsInSubnetFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InsufficientAvailableIPsInSubnetFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InsufficientAvailableIPsInSubnetFault"
 	}
 	return *e.ErrorCodeOverride
@@ -1892,7 +1892,7 @@ func (e *InsufficientDBClusterCapacityFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InsufficientDBClusterCapacityFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InsufficientDBClusterCapacityFault"
 	}
 	return *e.ErrorCodeOverride
@@ -1921,7 +1921,7 @@ func (e *InsufficientDBInstanceCapacityFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InsufficientDBInstanceCapacityFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InsufficientDBInstanceCapacity"
 	}
 	return *e.ErrorCodeOverride
@@ -1951,7 +1951,7 @@ func (e *InsufficientStorageClusterCapacityFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InsufficientStorageClusterCapacityFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InsufficientStorageClusterCapacity"
 	}
 	return *e.ErrorCodeOverride
@@ -1980,7 +1980,7 @@ func (e *InvalidBlueGreenDeploymentStateFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidBlueGreenDeploymentStateFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidBlueGreenDeploymentStateFault"
 	}
 	return *e.ErrorCodeOverride
@@ -2008,7 +2008,7 @@ func (e *InvalidCustomDBEngineVersionStateFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidCustomDBEngineVersionStateFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidCustomDBEngineVersionStateFault"
 	}
 	return *e.ErrorCodeOverride
@@ -2037,7 +2037,7 @@ func (e *InvalidDBClusterCapacityFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidDBClusterCapacityFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidDBClusterCapacityFault"
 	}
 	return *e.ErrorCodeOverride
@@ -2064,7 +2064,7 @@ func (e *InvalidDBClusterEndpointStateFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidDBClusterEndpointStateFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidDBClusterEndpointStateFault"
 	}
 	return *e.ErrorCodeOverride
@@ -2092,7 +2092,7 @@ func (e *InvalidDBClusterSnapshotStateFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidDBClusterSnapshotStateFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidDBClusterSnapshotStateFault"
 	}
 	return *e.ErrorCodeOverride
@@ -2120,7 +2120,7 @@ func (e *InvalidDBClusterStateFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidDBClusterStateFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidDBClusterStateFault"
 	}
 	return *e.ErrorCodeOverride
@@ -2147,7 +2147,7 @@ func (e *InvalidDBInstanceAutomatedBackupStateFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidDBInstanceAutomatedBackupStateFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidDBInstanceAutomatedBackupState"
 	}
 	return *e.ErrorCodeOverride
@@ -2175,7 +2175,7 @@ func (e *InvalidDBInstanceStateFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidDBInstanceStateFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidDBInstanceState"
 	}
 	return *e.ErrorCodeOverride
@@ -2203,7 +2203,7 @@ func (e *InvalidDBParameterGroupStateFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidDBParameterGroupStateFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidDBParameterGroupState"
 	}
 	return *e.ErrorCodeOverride
@@ -2230,7 +2230,7 @@ func (e *InvalidDBProxyEndpointStateFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidDBProxyEndpointStateFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidDBProxyEndpointStateFault"
 	}
 	return *e.ErrorCodeOverride
@@ -2256,7 +2256,7 @@ func (e *InvalidDBProxyStateFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidDBProxyStateFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidDBProxyStateFault"
 	}
 	return *e.ErrorCodeOverride
@@ -2282,7 +2282,7 @@ func (e *InvalidDBSecurityGroupStateFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidDBSecurityGroupStateFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidDBSecurityGroupState"
 	}
 	return *e.ErrorCodeOverride
@@ -2308,7 +2308,7 @@ func (e *InvalidDBSnapshotStateFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidDBSnapshotStateFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidDBSnapshotState"
 	}
 	return *e.ErrorCodeOverride
@@ -2335,7 +2335,7 @@ func (e *InvalidDBSubnetGroupFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidDBSubnetGroupFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidDBSubnetGroupFault"
 	}
 	return *e.ErrorCodeOverride
@@ -2361,7 +2361,7 @@ func (e *InvalidDBSubnetGroupStateFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidDBSubnetGroupStateFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidDBSubnetGroupStateFault"
 	}
 	return *e.ErrorCodeOverride
@@ -2387,7 +2387,7 @@ func (e *InvalidDBSubnetStateFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidDBSubnetStateFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidDBSubnetStateFault"
 	}
 	return *e.ErrorCodeOverride
@@ -2414,7 +2414,7 @@ func (e *InvalidEventSubscriptionStateFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidEventSubscriptionStateFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidEventSubscriptionState"
 	}
 	return *e.ErrorCodeOverride
@@ -2442,7 +2442,7 @@ func (e *InvalidExportOnlyFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidExportOnlyFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidExportOnly"
 	}
 	return *e.ErrorCodeOverride
@@ -2469,7 +2469,7 @@ func (e *InvalidExportSourceStateFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidExportSourceStateFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidExportSourceState"
 	}
 	return *e.ErrorCodeOverride
@@ -2495,7 +2495,7 @@ func (e *InvalidExportTaskStateFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidExportTaskStateFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidExportTaskStateFault"
 	}
 	return *e.ErrorCodeOverride
@@ -2522,7 +2522,7 @@ func (e *InvalidGlobalClusterStateFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidGlobalClusterStateFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidGlobalClusterStateFault"
 	}
 	return *e.ErrorCodeOverride
@@ -2548,7 +2548,7 @@ func (e *InvalidOptionGroupStateFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidOptionGroupStateFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidOptionGroupStateFault"
 	}
 	return *e.ErrorCodeOverride
@@ -2574,7 +2574,7 @@ func (e *InvalidRestoreFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidRestoreFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidRestoreFault"
 	}
 	return *e.ErrorCodeOverride
@@ -2602,7 +2602,7 @@ func (e *InvalidS3BucketFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidS3BucketFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidS3BucketFault"
 	}
 	return *e.ErrorCodeOverride
@@ -2629,7 +2629,7 @@ func (e *InvalidSubnet) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidSubnet) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidSubnet"
 	}
 	return *e.ErrorCodeOverride
@@ -2656,7 +2656,7 @@ func (e *InvalidVPCNetworkStateFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidVPCNetworkStateFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidVPCNetworkStateFault"
 	}
 	return *e.ErrorCodeOverride
@@ -2682,7 +2682,7 @@ func (e *KMSKeyNotAccessibleFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *KMSKeyNotAccessibleFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "KMSKeyNotAccessibleFault"
 	}
 	return *e.ErrorCodeOverride
@@ -2709,7 +2709,7 @@ func (e *NetworkTypeNotSupported) ErrorMessage() string {
 	return *e.Message
 }
 func (e *NetworkTypeNotSupported) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "NetworkTypeNotSupported"
 	}
 	return *e.ErrorCodeOverride
@@ -2735,7 +2735,7 @@ func (e *OptionGroupAlreadyExistsFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *OptionGroupAlreadyExistsFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "OptionGroupAlreadyExistsFault"
 	}
 	return *e.ErrorCodeOverride
@@ -2761,7 +2761,7 @@ func (e *OptionGroupNotFoundFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *OptionGroupNotFoundFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "OptionGroupNotFoundFault"
 	}
 	return *e.ErrorCodeOverride
@@ -2787,7 +2787,7 @@ func (e *OptionGroupQuotaExceededFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *OptionGroupQuotaExceededFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "OptionGroupQuotaExceededFault"
 	}
 	return *e.ErrorCodeOverride
@@ -2814,7 +2814,7 @@ func (e *PointInTimeRestoreNotEnabledFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *PointInTimeRestoreNotEnabledFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "PointInTimeRestoreNotEnabled"
 	}
 	return *e.ErrorCodeOverride
@@ -2840,7 +2840,7 @@ func (e *ProvisionedIopsNotAvailableInAZFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ProvisionedIopsNotAvailableInAZFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ProvisionedIopsNotAvailableInAZFault"
 	}
 	return *e.ErrorCodeOverride
@@ -2868,7 +2868,7 @@ func (e *ReservedDBInstanceAlreadyExistsFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ReservedDBInstanceAlreadyExistsFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ReservedDBInstanceAlreadyExists"
 	}
 	return *e.ErrorCodeOverride
@@ -2896,7 +2896,7 @@ func (e *ReservedDBInstanceNotFoundFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ReservedDBInstanceNotFoundFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ReservedDBInstanceNotFound"
 	}
 	return *e.ErrorCodeOverride
@@ -2922,7 +2922,7 @@ func (e *ReservedDBInstanceQuotaExceededFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ReservedDBInstanceQuotaExceededFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ReservedDBInstanceQuotaExceeded"
 	}
 	return *e.ErrorCodeOverride
@@ -2950,7 +2950,7 @@ func (e *ReservedDBInstancesOfferingNotFoundFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ReservedDBInstancesOfferingNotFoundFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ReservedDBInstancesOfferingNotFound"
 	}
 	return *e.ErrorCodeOverride
@@ -2978,7 +2978,7 @@ func (e *ResourceNotFoundFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundFault"
 	}
 	return *e.ErrorCodeOverride
@@ -3005,7 +3005,7 @@ func (e *SharedSnapshotQuotaExceededFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *SharedSnapshotQuotaExceededFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "SharedSnapshotQuotaExceeded"
 	}
 	return *e.ErrorCodeOverride
@@ -3032,7 +3032,7 @@ func (e *SnapshotQuotaExceededFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *SnapshotQuotaExceededFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "SnapshotQuotaExceeded"
 	}
 	return *e.ErrorCodeOverride
@@ -3058,7 +3058,7 @@ func (e *SNSInvalidTopicFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *SNSInvalidTopicFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "SNSInvalidTopic"
 	}
 	return *e.ErrorCodeOverride
@@ -3084,7 +3084,7 @@ func (e *SNSNoAuthorizationFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *SNSNoAuthorizationFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "SNSNoAuthorization"
 	}
 	return *e.ErrorCodeOverride
@@ -3110,7 +3110,7 @@ func (e *SNSTopicArnNotFoundFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *SNSTopicArnNotFoundFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "SNSTopicArnNotFound"
 	}
 	return *e.ErrorCodeOverride
@@ -3136,7 +3136,7 @@ func (e *SourceClusterNotSupportedFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *SourceClusterNotSupportedFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "SourceClusterNotSupportedFault"
 	}
 	return *e.ErrorCodeOverride
@@ -3162,7 +3162,7 @@ func (e *SourceDatabaseNotSupportedFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *SourceDatabaseNotSupportedFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "SourceDatabaseNotSupportedFault"
 	}
 	return *e.ErrorCodeOverride
@@ -3188,7 +3188,7 @@ func (e *SourceNotFoundFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *SourceNotFoundFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "SourceNotFound"
 	}
 	return *e.ErrorCodeOverride
@@ -3215,7 +3215,7 @@ func (e *StorageQuotaExceededFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *StorageQuotaExceededFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "StorageQuotaExceeded"
 	}
 	return *e.ErrorCodeOverride
@@ -3241,7 +3241,7 @@ func (e *StorageTypeNotSupportedFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *StorageTypeNotSupportedFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "StorageTypeNotSupported"
 	}
 	return *e.ErrorCodeOverride
@@ -3267,7 +3267,7 @@ func (e *SubnetAlreadyInUse) ErrorMessage() string {
 	return *e.Message
 }
 func (e *SubnetAlreadyInUse) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "SubnetAlreadyInUse"
 	}
 	return *e.ErrorCodeOverride
@@ -3293,7 +3293,7 @@ func (e *SubscriptionAlreadyExistFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *SubscriptionAlreadyExistFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "SubscriptionAlreadyExist"
 	}
 	return *e.ErrorCodeOverride
@@ -3319,7 +3319,7 @@ func (e *SubscriptionCategoryNotFoundFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *SubscriptionCategoryNotFoundFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "SubscriptionCategoryNotFound"
 	}
 	return *e.ErrorCodeOverride
@@ -3345,7 +3345,7 @@ func (e *SubscriptionNotFoundFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *SubscriptionNotFoundFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "SubscriptionNotFound"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/rdsdata/types/errors.go b/service/rdsdata/types/errors.go
index 12e11fef0a4..b3b9215bfef 100644
--- a/service/rdsdata/types/errors.go
+++ b/service/rdsdata/types/errors.go
@@ -26,7 +26,7 @@ func (e *AccessDeniedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AccessDeniedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AccessDeniedException"
 	}
 	return *e.ErrorCodeOverride
@@ -52,7 +52,7 @@ func (e *BadRequestException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *BadRequestException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "BadRequestException"
 	}
 	return *e.ErrorCodeOverride
@@ -78,7 +78,7 @@ func (e *ForbiddenException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ForbiddenException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ForbiddenException"
 	}
 	return *e.ErrorCodeOverride
@@ -104,7 +104,7 @@ func (e *InternalServerErrorException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalServerErrorException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalServerErrorException"
 	}
 	return *e.ErrorCodeOverride
@@ -130,7 +130,7 @@ func (e *NotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *NotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "NotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -156,7 +156,7 @@ func (e *ServiceUnavailableError) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ServiceUnavailableError) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ServiceUnavailableError"
 	}
 	return *e.ErrorCodeOverride
@@ -184,7 +184,7 @@ func (e *StatementTimeoutException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *StatementTimeoutException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "StatementTimeoutException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/redshift/types/errors.go b/service/redshift/types/errors.go
index 277618eb9d7..4a3c6e364a3 100644
--- a/service/redshift/types/errors.go
+++ b/service/redshift/types/errors.go
@@ -26,7 +26,7 @@ func (e *AccessToClusterDeniedFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AccessToClusterDeniedFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AccessToClusterDenied"
 	}
 	return *e.ErrorCodeOverride
@@ -53,7 +53,7 @@ func (e *AccessToSnapshotDeniedFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AccessToSnapshotDeniedFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AccessToSnapshotDenied"
 	}
 	return *e.ErrorCodeOverride
@@ -79,7 +79,7 @@ func (e *AuthenticationProfileAlreadyExistsFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AuthenticationProfileAlreadyExistsFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AuthenticationProfileAlreadyExistsFault"
 	}
 	return *e.ErrorCodeOverride
@@ -107,7 +107,7 @@ func (e *AuthenticationProfileNotFoundFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AuthenticationProfileNotFoundFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AuthenticationProfileNotFoundFault"
 	}
 	return *e.ErrorCodeOverride
@@ -137,7 +137,7 @@ func (e *AuthenticationProfileQuotaExceededFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AuthenticationProfileQuotaExceededFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AuthenticationProfileQuotaExceededFault"
 	}
 	return *e.ErrorCodeOverride
@@ -166,7 +166,7 @@ func (e *AuthorizationAlreadyExistsFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AuthorizationAlreadyExistsFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AuthorizationAlreadyExists"
 	}
 	return *e.ErrorCodeOverride
@@ -193,7 +193,7 @@ func (e *AuthorizationNotFoundFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AuthorizationNotFoundFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AuthorizationNotFound"
 	}
 	return *e.ErrorCodeOverride
@@ -219,7 +219,7 @@ func (e *AuthorizationQuotaExceededFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AuthorizationQuotaExceededFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AuthorizationQuotaExceeded"
 	}
 	return *e.ErrorCodeOverride
@@ -246,7 +246,7 @@ func (e *BatchDeleteRequestSizeExceededFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *BatchDeleteRequestSizeExceededFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "BatchDeleteRequestSizeExceeded"
 	}
 	return *e.ErrorCodeOverride
@@ -274,7 +274,7 @@ func (e *BatchModifyClusterSnapshotsLimitExceededFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *BatchModifyClusterSnapshotsLimitExceededFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "BatchModifyClusterSnapshotsLimitExceededFault"
 	}
 	return *e.ErrorCodeOverride
@@ -302,7 +302,7 @@ func (e *BucketNotFoundFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *BucketNotFoundFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "BucketNotFoundFault"
 	}
 	return *e.ErrorCodeOverride
@@ -328,7 +328,7 @@ func (e *ClusterAlreadyExistsFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ClusterAlreadyExistsFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ClusterAlreadyExists"
 	}
 	return *e.ErrorCodeOverride
@@ -354,7 +354,7 @@ func (e *ClusterNotFoundFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ClusterNotFoundFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ClusterNotFound"
 	}
 	return *e.ErrorCodeOverride
@@ -380,7 +380,7 @@ func (e *ClusterOnLatestRevisionFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ClusterOnLatestRevisionFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ClusterOnLatestRevision"
 	}
 	return *e.ErrorCodeOverride
@@ -406,7 +406,7 @@ func (e *ClusterParameterGroupAlreadyExistsFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ClusterParameterGroupAlreadyExistsFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ClusterParameterGroupAlreadyExists"
 	}
 	return *e.ErrorCodeOverride
@@ -434,7 +434,7 @@ func (e *ClusterParameterGroupNotFoundFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ClusterParameterGroupNotFoundFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ClusterParameterGroupNotFound"
 	}
 	return *e.ErrorCodeOverride
@@ -466,7 +466,7 @@ func (e *ClusterParameterGroupQuotaExceededFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ClusterParameterGroupQuotaExceededFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ClusterParameterGroupQuotaExceeded"
 	}
 	return *e.ErrorCodeOverride
@@ -498,7 +498,7 @@ func (e *ClusterQuotaExceededFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ClusterQuotaExceededFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ClusterQuotaExceeded"
 	}
 	return *e.ErrorCodeOverride
@@ -524,7 +524,7 @@ func (e *ClusterSecurityGroupAlreadyExistsFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ClusterSecurityGroupAlreadyExistsFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ClusterSecurityGroupAlreadyExists"
 	}
 	return *e.ErrorCodeOverride
@@ -553,7 +553,7 @@ func (e *ClusterSecurityGroupNotFoundFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ClusterSecurityGroupNotFoundFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ClusterSecurityGroupNotFound"
 	}
 	return *e.ErrorCodeOverride
@@ -583,7 +583,7 @@ func (e *ClusterSecurityGroupQuotaExceededFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ClusterSecurityGroupQuotaExceededFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "QuotaExceeded.ClusterSecurityGroup"
 	}
 	return *e.ErrorCodeOverride
@@ -612,7 +612,7 @@ func (e *ClusterSnapshotAlreadyExistsFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ClusterSnapshotAlreadyExistsFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ClusterSnapshotAlreadyExists"
 	}
 	return *e.ErrorCodeOverride
@@ -638,7 +638,7 @@ func (e *ClusterSnapshotNotFoundFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ClusterSnapshotNotFoundFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ClusterSnapshotNotFound"
 	}
 	return *e.ErrorCodeOverride
@@ -665,7 +665,7 @@ func (e *ClusterSnapshotQuotaExceededFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ClusterSnapshotQuotaExceededFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ClusterSnapshotQuotaExceeded"
 	}
 	return *e.ErrorCodeOverride
@@ -691,7 +691,7 @@ func (e *ClusterSubnetGroupAlreadyExistsFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ClusterSubnetGroupAlreadyExistsFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ClusterSubnetGroupAlreadyExists"
 	}
 	return *e.ErrorCodeOverride
@@ -720,7 +720,7 @@ func (e *ClusterSubnetGroupNotFoundFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ClusterSubnetGroupNotFoundFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ClusterSubnetGroupNotFoundFault"
 	}
 	return *e.ErrorCodeOverride
@@ -750,7 +750,7 @@ func (e *ClusterSubnetGroupQuotaExceededFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ClusterSubnetGroupQuotaExceededFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ClusterSubnetGroupQuotaExceeded"
 	}
 	return *e.ErrorCodeOverride
@@ -782,7 +782,7 @@ func (e *ClusterSubnetQuotaExceededFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ClusterSubnetQuotaExceededFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ClusterSubnetQuotaExceededFault"
 	}
 	return *e.ErrorCodeOverride
@@ -808,7 +808,7 @@ func (e *CopyToRegionDisabledFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *CopyToRegionDisabledFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "CopyToRegionDisabledFault"
 	}
 	return *e.ErrorCodeOverride
@@ -835,7 +835,7 @@ func (e *DependentServiceRequestThrottlingFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DependentServiceRequestThrottlingFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DependentServiceRequestThrottlingFault"
 	}
 	return *e.ErrorCodeOverride
@@ -864,7 +864,7 @@ func (e *DependentServiceUnavailableFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DependentServiceUnavailableFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DependentServiceUnavailableFault"
 	}
 	return *e.ErrorCodeOverride
@@ -891,7 +891,7 @@ func (e *EndpointAlreadyExistsFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *EndpointAlreadyExistsFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "EndpointAlreadyExists"
 	}
 	return *e.ErrorCodeOverride
@@ -917,7 +917,7 @@ func (e *EndpointAuthorizationAlreadyExistsFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *EndpointAuthorizationAlreadyExistsFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "EndpointAuthorizationAlreadyExists"
 	}
 	return *e.ErrorCodeOverride
@@ -945,7 +945,7 @@ func (e *EndpointAuthorizationNotFoundFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *EndpointAuthorizationNotFoundFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "EndpointAuthorizationNotFound"
 	}
 	return *e.ErrorCodeOverride
@@ -973,7 +973,7 @@ func (e *EndpointAuthorizationsPerClusterLimitExceededFault) ErrorMessage() stri
 	return *e.Message
 }
 func (e *EndpointAuthorizationsPerClusterLimitExceededFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "EndpointAuthorizationsPerClusterLimitExceeded"
 	}
 	return *e.ErrorCodeOverride
@@ -1001,7 +1001,7 @@ func (e *EndpointNotFoundFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *EndpointNotFoundFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "EndpointNotFound"
 	}
 	return *e.ErrorCodeOverride
@@ -1028,7 +1028,7 @@ func (e *EndpointsPerAuthorizationLimitExceededFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *EndpointsPerAuthorizationLimitExceededFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "EndpointsPerAuthorizationLimitExceeded"
 	}
 	return *e.ErrorCodeOverride
@@ -1056,7 +1056,7 @@ func (e *EndpointsPerClusterLimitExceededFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *EndpointsPerClusterLimitExceededFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "EndpointsPerClusterLimitExceeded"
 	}
 	return *e.ErrorCodeOverride
@@ -1088,7 +1088,7 @@ func (e *EventSubscriptionQuotaExceededFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *EventSubscriptionQuotaExceededFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "EventSubscriptionQuotaExceeded"
 	}
 	return *e.ErrorCodeOverride
@@ -1117,7 +1117,7 @@ func (e *HsmClientCertificateAlreadyExistsFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *HsmClientCertificateAlreadyExistsFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "HsmClientCertificateAlreadyExistsFault"
 	}
 	return *e.ErrorCodeOverride
@@ -1146,7 +1146,7 @@ func (e *HsmClientCertificateNotFoundFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *HsmClientCertificateNotFoundFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "HsmClientCertificateNotFoundFault"
 	}
 	return *e.ErrorCodeOverride
@@ -1175,7 +1175,7 @@ func (e *HsmClientCertificateQuotaExceededFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *HsmClientCertificateQuotaExceededFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "HsmClientCertificateQuotaExceededFault"
 	}
 	return *e.ErrorCodeOverride
@@ -1204,7 +1204,7 @@ func (e *HsmConfigurationAlreadyExistsFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *HsmConfigurationAlreadyExistsFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "HsmConfigurationAlreadyExistsFault"
 	}
 	return *e.ErrorCodeOverride
@@ -1232,7 +1232,7 @@ func (e *HsmConfigurationNotFoundFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *HsmConfigurationNotFoundFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "HsmConfigurationNotFoundFault"
 	}
 	return *e.ErrorCodeOverride
@@ -1261,7 +1261,7 @@ func (e *HsmConfigurationQuotaExceededFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *HsmConfigurationQuotaExceededFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "HsmConfigurationQuotaExceededFault"
 	}
 	return *e.ErrorCodeOverride
@@ -1289,7 +1289,7 @@ func (e *IncompatibleOrderableOptions) ErrorMessage() string {
 	return *e.Message
 }
 func (e *IncompatibleOrderableOptions) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "IncompatibleOrderableOptions"
 	}
 	return *e.ErrorCodeOverride
@@ -1316,7 +1316,7 @@ func (e *InProgressTableRestoreQuotaExceededFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InProgressTableRestoreQuotaExceededFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InProgressTableRestoreQuotaExceededFault"
 	}
 	return *e.ErrorCodeOverride
@@ -1344,7 +1344,7 @@ func (e *InsufficientClusterCapacityFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InsufficientClusterCapacityFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InsufficientClusterCapacity"
 	}
 	return *e.ErrorCodeOverride
@@ -1371,7 +1371,7 @@ func (e *InsufficientS3BucketPolicyFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InsufficientS3BucketPolicyFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InsufficientS3BucketPolicyFault"
 	}
 	return *e.ErrorCodeOverride
@@ -1399,7 +1399,7 @@ func (e *InvalidAuthenticationProfileRequestFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidAuthenticationProfileRequestFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidAuthenticationProfileRequestFault"
 	}
 	return *e.ErrorCodeOverride
@@ -1427,7 +1427,7 @@ func (e *InvalidAuthorizationStateFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidAuthorizationStateFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidAuthorizationState"
 	}
 	return *e.ErrorCodeOverride
@@ -1455,7 +1455,7 @@ func (e *InvalidClusterParameterGroupStateFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidClusterParameterGroupStateFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidClusterParameterGroupState"
 	}
 	return *e.ErrorCodeOverride
@@ -1483,7 +1483,7 @@ func (e *InvalidClusterSecurityGroupStateFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidClusterSecurityGroupStateFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidClusterSecurityGroupState"
 	}
 	return *e.ErrorCodeOverride
@@ -1511,7 +1511,7 @@ func (e *InvalidClusterSnapshotScheduleStateFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidClusterSnapshotScheduleStateFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidClusterSnapshotScheduleState"
 	}
 	return *e.ErrorCodeOverride
@@ -1540,7 +1540,7 @@ func (e *InvalidClusterSnapshotStateFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidClusterSnapshotStateFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidClusterSnapshotState"
 	}
 	return *e.ErrorCodeOverride
@@ -1566,7 +1566,7 @@ func (e *InvalidClusterStateFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidClusterStateFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidClusterState"
 	}
 	return *e.ErrorCodeOverride
@@ -1592,7 +1592,7 @@ func (e *InvalidClusterSubnetGroupStateFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidClusterSubnetGroupStateFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidClusterSubnetGroupStateFault"
 	}
 	return *e.ErrorCodeOverride
@@ -1620,7 +1620,7 @@ func (e *InvalidClusterSubnetStateFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidClusterSubnetStateFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidClusterSubnetStateFault"
 	}
 	return *e.ErrorCodeOverride
@@ -1646,7 +1646,7 @@ func (e *InvalidClusterTrackFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidClusterTrackFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidClusterTrack"
 	}
 	return *e.ErrorCodeOverride
@@ -1672,7 +1672,7 @@ func (e *InvalidDataShareFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidDataShareFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidDataShareFault"
 	}
 	return *e.ErrorCodeOverride
@@ -1698,7 +1698,7 @@ func (e *InvalidElasticIpFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidElasticIpFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidElasticIpFault"
 	}
 	return *e.ErrorCodeOverride
@@ -1724,7 +1724,7 @@ func (e *InvalidEndpointStateFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidEndpointStateFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidEndpointState"
 	}
 	return *e.ErrorCodeOverride
@@ -1751,7 +1751,7 @@ func (e *InvalidHsmClientCertificateStateFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidHsmClientCertificateStateFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidHsmClientCertificateStateFault"
 	}
 	return *e.ErrorCodeOverride
@@ -1780,7 +1780,7 @@ func (e *InvalidHsmConfigurationStateFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidHsmConfigurationStateFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidHsmConfigurationStateFault"
 	}
 	return *e.ErrorCodeOverride
@@ -1807,7 +1807,7 @@ func (e *InvalidNamespaceFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidNamespaceFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidNamespaceFault"
 	}
 	return *e.ErrorCodeOverride
@@ -1833,7 +1833,7 @@ func (e *InvalidReservedNodeStateFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidReservedNodeStateFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidReservedNodeState"
 	}
 	return *e.ErrorCodeOverride
@@ -1859,7 +1859,7 @@ func (e *InvalidRestoreFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidRestoreFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidRestore"
 	}
 	return *e.ErrorCodeOverride
@@ -1886,7 +1886,7 @@ func (e *InvalidRetentionPeriodFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidRetentionPeriodFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidRetentionPeriodFault"
 	}
 	return *e.ErrorCodeOverride
@@ -1915,7 +1915,7 @@ func (e *InvalidS3BucketNameFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidS3BucketNameFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidS3BucketNameFault"
 	}
 	return *e.ErrorCodeOverride
@@ -1942,7 +1942,7 @@ func (e *InvalidS3KeyPrefixFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidS3KeyPrefixFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidS3KeyPrefixFault"
 	}
 	return *e.ErrorCodeOverride
@@ -1968,7 +1968,7 @@ func (e *InvalidScheduledActionFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidScheduledActionFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidScheduledAction"
 	}
 	return *e.ErrorCodeOverride
@@ -1994,7 +1994,7 @@ func (e *InvalidScheduleFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidScheduleFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidSchedule"
 	}
 	return *e.ErrorCodeOverride
@@ -2021,7 +2021,7 @@ func (e *InvalidSnapshotCopyGrantStateFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidSnapshotCopyGrantStateFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidSnapshotCopyGrantStateFault"
 	}
 	return *e.ErrorCodeOverride
@@ -2050,7 +2050,7 @@ func (e *InvalidSubnet) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidSubnet) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidSubnet"
 	}
 	return *e.ErrorCodeOverride
@@ -2077,7 +2077,7 @@ func (e *InvalidSubscriptionStateFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidSubscriptionStateFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidSubscriptionStateFault"
 	}
 	return *e.ErrorCodeOverride
@@ -2105,7 +2105,7 @@ func (e *InvalidTableRestoreArgumentFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidTableRestoreArgumentFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidTableRestoreArgument"
 	}
 	return *e.ErrorCodeOverride
@@ -2131,7 +2131,7 @@ func (e *InvalidTagFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidTagFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidTagFault"
 	}
 	return *e.ErrorCodeOverride
@@ -2157,7 +2157,7 @@ func (e *InvalidUsageLimitFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidUsageLimitFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidUsageLimit"
 	}
 	return *e.ErrorCodeOverride
@@ -2183,7 +2183,7 @@ func (e *InvalidVPCNetworkStateFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidVPCNetworkStateFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidVPCNetworkStateFault"
 	}
 	return *e.ErrorCodeOverride
@@ -2209,7 +2209,7 @@ func (e *LimitExceededFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *LimitExceededFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "LimitExceededFault"
 	}
 	return *e.ErrorCodeOverride
@@ -2235,7 +2235,7 @@ func (e *NumberOfNodesPerClusterLimitExceededFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *NumberOfNodesPerClusterLimitExceededFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "NumberOfNodesPerClusterLimitExceeded"
 	}
 	return *e.ErrorCodeOverride
@@ -2266,7 +2266,7 @@ func (e *NumberOfNodesQuotaExceededFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *NumberOfNodesQuotaExceededFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "NumberOfNodesQuotaExceeded"
 	}
 	return *e.ErrorCodeOverride
@@ -2292,7 +2292,7 @@ func (e *PartnerNotFoundFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *PartnerNotFoundFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "PartnerNotFound"
 	}
 	return *e.ErrorCodeOverride
@@ -2318,7 +2318,7 @@ func (e *ReservedNodeAlreadyExistsFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ReservedNodeAlreadyExistsFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ReservedNodeAlreadyExists"
 	}
 	return *e.ErrorCodeOverride
@@ -2344,7 +2344,7 @@ func (e *ReservedNodeAlreadyMigratedFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ReservedNodeAlreadyMigratedFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ReservedNodeAlreadyMigrated"
 	}
 	return *e.ErrorCodeOverride
@@ -2370,7 +2370,7 @@ func (e *ReservedNodeExchangeNotFoundFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ReservedNodeExchangeNotFoundFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ReservedNodeExchangeNotFond"
 	}
 	return *e.ErrorCodeOverride
@@ -2396,7 +2396,7 @@ func (e *ReservedNodeNotFoundFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ReservedNodeNotFoundFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ReservedNodeNotFound"
 	}
 	return *e.ErrorCodeOverride
@@ -2422,7 +2422,7 @@ func (e *ReservedNodeOfferingNotFoundFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ReservedNodeOfferingNotFoundFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ReservedNodeOfferingNotFound"
 	}
 	return *e.ErrorCodeOverride
@@ -2451,7 +2451,7 @@ func (e *ReservedNodeQuotaExceededFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ReservedNodeQuotaExceededFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ReservedNodeQuotaExceeded"
 	}
 	return *e.ErrorCodeOverride
@@ -2477,7 +2477,7 @@ func (e *ResizeNotFoundFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResizeNotFoundFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResizeNotFound"
 	}
 	return *e.ErrorCodeOverride
@@ -2503,7 +2503,7 @@ func (e *ResourceNotFoundFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundFault"
 	}
 	return *e.ErrorCodeOverride
@@ -2529,7 +2529,7 @@ func (e *ScheduledActionAlreadyExistsFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ScheduledActionAlreadyExistsFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ScheduledActionAlreadyExists"
 	}
 	return *e.ErrorCodeOverride
@@ -2555,7 +2555,7 @@ func (e *ScheduledActionNotFoundFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ScheduledActionNotFoundFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ScheduledActionNotFound"
 	}
 	return *e.ErrorCodeOverride
@@ -2581,7 +2581,7 @@ func (e *ScheduledActionQuotaExceededFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ScheduledActionQuotaExceededFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ScheduledActionQuotaExceeded"
 	}
 	return *e.ErrorCodeOverride
@@ -2607,7 +2607,7 @@ func (e *ScheduledActionTypeUnsupportedFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ScheduledActionTypeUnsupportedFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ScheduledActionTypeUnsupported"
 	}
 	return *e.ErrorCodeOverride
@@ -2635,7 +2635,7 @@ func (e *ScheduleDefinitionTypeUnsupportedFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ScheduleDefinitionTypeUnsupportedFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ScheduleDefinitionTypeUnsupported"
 	}
 	return *e.ErrorCodeOverride
@@ -2663,7 +2663,7 @@ func (e *SnapshotCopyAlreadyDisabledFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *SnapshotCopyAlreadyDisabledFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "SnapshotCopyAlreadyDisabledFault"
 	}
 	return *e.ErrorCodeOverride
@@ -2689,7 +2689,7 @@ func (e *SnapshotCopyAlreadyEnabledFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *SnapshotCopyAlreadyEnabledFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "SnapshotCopyAlreadyEnabledFault"
 	}
 	return *e.ErrorCodeOverride
@@ -2715,7 +2715,7 @@ func (e *SnapshotCopyDisabledFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *SnapshotCopyDisabledFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "SnapshotCopyDisabledFault"
 	}
 	return *e.ErrorCodeOverride
@@ -2742,7 +2742,7 @@ func (e *SnapshotCopyGrantAlreadyExistsFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *SnapshotCopyGrantAlreadyExistsFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "SnapshotCopyGrantAlreadyExistsFault"
 	}
 	return *e.ErrorCodeOverride
@@ -2771,7 +2771,7 @@ func (e *SnapshotCopyGrantNotFoundFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *SnapshotCopyGrantNotFoundFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "SnapshotCopyGrantNotFoundFault"
 	}
 	return *e.ErrorCodeOverride
@@ -2798,7 +2798,7 @@ func (e *SnapshotCopyGrantQuotaExceededFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *SnapshotCopyGrantQuotaExceededFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "SnapshotCopyGrantQuotaExceededFault"
 	}
 	return *e.ErrorCodeOverride
@@ -2826,7 +2826,7 @@ func (e *SnapshotScheduleAlreadyExistsFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *SnapshotScheduleAlreadyExistsFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "SnapshotScheduleAlreadyExists"
 	}
 	return *e.ErrorCodeOverride
@@ -2854,7 +2854,7 @@ func (e *SnapshotScheduleNotFoundFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *SnapshotScheduleNotFoundFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "SnapshotScheduleNotFound"
 	}
 	return *e.ErrorCodeOverride
@@ -2880,7 +2880,7 @@ func (e *SnapshotScheduleQuotaExceededFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *SnapshotScheduleQuotaExceededFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "SnapshotScheduleQuotaExceeded"
 	}
 	return *e.ErrorCodeOverride
@@ -2908,7 +2908,7 @@ func (e *SnapshotScheduleUpdateInProgressFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *SnapshotScheduleUpdateInProgressFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "SnapshotScheduleUpdateInProgress"
 	}
 	return *e.ErrorCodeOverride
@@ -2937,7 +2937,7 @@ func (e *SNSInvalidTopicFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *SNSInvalidTopicFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "SNSInvalidTopic"
 	}
 	return *e.ErrorCodeOverride
@@ -2963,7 +2963,7 @@ func (e *SNSNoAuthorizationFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *SNSNoAuthorizationFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "SNSNoAuthorization"
 	}
 	return *e.ErrorCodeOverride
@@ -2990,7 +2990,7 @@ func (e *SNSTopicArnNotFoundFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *SNSTopicArnNotFoundFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "SNSTopicArnNotFound"
 	}
 	return *e.ErrorCodeOverride
@@ -3016,7 +3016,7 @@ func (e *SourceNotFoundFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *SourceNotFoundFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "SourceNotFound"
 	}
 	return *e.ErrorCodeOverride
@@ -3042,7 +3042,7 @@ func (e *SubnetAlreadyInUse) ErrorMessage() string {
 	return *e.Message
 }
 func (e *SubnetAlreadyInUse) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "SubnetAlreadyInUse"
 	}
 	return *e.ErrorCodeOverride
@@ -3069,7 +3069,7 @@ func (e *SubscriptionAlreadyExistFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *SubscriptionAlreadyExistFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "SubscriptionAlreadyExist"
 	}
 	return *e.ErrorCodeOverride
@@ -3097,7 +3097,7 @@ func (e *SubscriptionCategoryNotFoundFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *SubscriptionCategoryNotFoundFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "SubscriptionCategoryNotFound"
 	}
 	return *e.ErrorCodeOverride
@@ -3123,7 +3123,7 @@ func (e *SubscriptionEventIdNotFoundFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *SubscriptionEventIdNotFoundFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "SubscriptionEventIdNotFound"
 	}
 	return *e.ErrorCodeOverride
@@ -3150,7 +3150,7 @@ func (e *SubscriptionNotFoundFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *SubscriptionNotFoundFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "SubscriptionNotFound"
 	}
 	return *e.ErrorCodeOverride
@@ -3178,7 +3178,7 @@ func (e *SubscriptionSeverityNotFoundFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *SubscriptionSeverityNotFoundFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "SubscriptionSeverityNotFound"
 	}
 	return *e.ErrorCodeOverride
@@ -3205,7 +3205,7 @@ func (e *TableLimitExceededFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TableLimitExceededFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TableLimitExceeded"
 	}
 	return *e.ErrorCodeOverride
@@ -3231,7 +3231,7 @@ func (e *TableRestoreNotFoundFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TableRestoreNotFoundFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TableRestoreNotFoundFault"
 	}
 	return *e.ErrorCodeOverride
@@ -3257,7 +3257,7 @@ func (e *TagLimitExceededFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TagLimitExceededFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TagLimitExceededFault"
 	}
 	return *e.ErrorCodeOverride
@@ -3283,7 +3283,7 @@ func (e *UnauthorizedOperation) ErrorMessage() string {
 	return *e.Message
 }
 func (e *UnauthorizedOperation) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "UnauthorizedOperation"
 	}
 	return *e.ErrorCodeOverride
@@ -3309,7 +3309,7 @@ func (e *UnauthorizedPartnerIntegrationFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *UnauthorizedPartnerIntegrationFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "UnauthorizedPartnerIntegration"
 	}
 	return *e.ErrorCodeOverride
@@ -3337,7 +3337,7 @@ func (e *UnknownSnapshotCopyRegionFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *UnknownSnapshotCopyRegionFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "UnknownSnapshotCopyRegionFault"
 	}
 	return *e.ErrorCodeOverride
@@ -3363,7 +3363,7 @@ func (e *UnsupportedOperationFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *UnsupportedOperationFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "UnsupportedOperation"
 	}
 	return *e.ErrorCodeOverride
@@ -3389,7 +3389,7 @@ func (e *UnsupportedOptionFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *UnsupportedOptionFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "UnsupportedOptionFault"
 	}
 	return *e.ErrorCodeOverride
@@ -3415,7 +3415,7 @@ func (e *UsageLimitAlreadyExistsFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *UsageLimitAlreadyExistsFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "UsageLimitAlreadyExists"
 	}
 	return *e.ErrorCodeOverride
@@ -3441,7 +3441,7 @@ func (e *UsageLimitNotFoundFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *UsageLimitNotFoundFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "UsageLimitNotFound"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/redshiftdata/types/errors.go b/service/redshiftdata/types/errors.go
index 78d29b8943e..ade6881d182 100644
--- a/service/redshiftdata/types/errors.go
+++ b/service/redshiftdata/types/errors.go
@@ -26,7 +26,7 @@ func (e *ActiveStatementsExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ActiveStatementsExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ActiveStatementsExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -54,7 +54,7 @@ func (e *BatchExecuteStatementException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *BatchExecuteStatementException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "BatchExecuteStatementException"
 	}
 	return *e.ErrorCodeOverride
@@ -80,7 +80,7 @@ func (e *DatabaseConnectionException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DatabaseConnectionException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DatabaseConnectionException"
 	}
 	return *e.ErrorCodeOverride
@@ -108,7 +108,7 @@ func (e *ExecuteStatementException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ExecuteStatementException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ExecuteStatementException"
 	}
 	return *e.ErrorCodeOverride
@@ -134,7 +134,7 @@ func (e *InternalServerException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalServerException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalServerException"
 	}
 	return *e.ErrorCodeOverride
@@ -162,7 +162,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -188,7 +188,7 @@ func (e *ValidationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ValidationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ValidationException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/redshiftserverless/types/errors.go b/service/redshiftserverless/types/errors.go
index e064a964931..840397a15b3 100644
--- a/service/redshiftserverless/types/errors.go
+++ b/service/redshiftserverless/types/errors.go
@@ -28,7 +28,7 @@ func (e *AccessDeniedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AccessDeniedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AccessDeniedException"
 	}
 	return *e.ErrorCodeOverride
@@ -54,7 +54,7 @@ func (e *ConflictException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ConflictException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ConflictException"
 	}
 	return *e.ErrorCodeOverride
@@ -80,7 +80,7 @@ func (e *InsufficientCapacityException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InsufficientCapacityException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InsufficientCapacityException"
 	}
 	return *e.ErrorCodeOverride
@@ -107,7 +107,7 @@ func (e *InternalServerException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalServerException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalServerException"
 	}
 	return *e.ErrorCodeOverride
@@ -133,7 +133,7 @@ func (e *InvalidPaginationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidPaginationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidPaginationException"
 	}
 	return *e.ErrorCodeOverride
@@ -161,7 +161,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -187,7 +187,7 @@ func (e *ServiceQuotaExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ServiceQuotaExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ServiceQuotaExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -215,7 +215,7 @@ func (e *ThrottlingException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ThrottlingException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ThrottlingException"
 	}
 	return *e.ErrorCodeOverride
@@ -243,7 +243,7 @@ func (e *TooManyTagsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TooManyTagsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TooManyTagsException"
 	}
 	return *e.ErrorCodeOverride
@@ -269,7 +269,7 @@ func (e *ValidationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ValidationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ValidationException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/rekognition/types/errors.go b/service/rekognition/types/errors.go
index 390ef4aaef3..574736ea55e 100644
--- a/service/rekognition/types/errors.go
+++ b/service/rekognition/types/errors.go
@@ -29,7 +29,7 @@ func (e *AccessDeniedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AccessDeniedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AccessDeniedException"
 	}
 	return *e.ErrorCodeOverride
@@ -62,7 +62,7 @@ func (e *HumanLoopQuotaExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *HumanLoopQuotaExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "HumanLoopQuotaExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -93,7 +93,7 @@ func (e *IdempotentParameterMismatchException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *IdempotentParameterMismatchException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "IdempotentParameterMismatchException"
 	}
 	return *e.ErrorCodeOverride
@@ -127,7 +127,7 @@ func (e *ImageTooLargeException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ImageTooLargeException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ImageTooLargeException"
 	}
 	return *e.ErrorCodeOverride
@@ -156,7 +156,7 @@ func (e *InternalServerError) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalServerError) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalServerError"
 	}
 	return *e.ErrorCodeOverride
@@ -185,7 +185,7 @@ func (e *InvalidImageFormatException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidImageFormatException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidImageFormatException"
 	}
 	return *e.ErrorCodeOverride
@@ -214,7 +214,7 @@ func (e *InvalidPaginationTokenException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidPaginationTokenException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidPaginationTokenException"
 	}
 	return *e.ErrorCodeOverride
@@ -244,7 +244,7 @@ func (e *InvalidParameterException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidParameterException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidParameterException"
 	}
 	return *e.ErrorCodeOverride
@@ -273,7 +273,7 @@ func (e *InvalidPolicyRevisionIdException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidPolicyRevisionIdException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidPolicyRevisionIdException"
 	}
 	return *e.ErrorCodeOverride
@@ -302,7 +302,7 @@ func (e *InvalidS3ObjectException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidS3ObjectException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidS3ObjectException"
 	}
 	return *e.ErrorCodeOverride
@@ -335,7 +335,7 @@ func (e *LimitExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *LimitExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "LimitExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -365,7 +365,7 @@ func (e *MalformedPolicyDocumentException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *MalformedPolicyDocumentException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "MalformedPolicyDocumentException"
 	}
 	return *e.ErrorCodeOverride
@@ -395,7 +395,7 @@ func (e *ProvisionedThroughputExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ProvisionedThroughputExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ProvisionedThroughputExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -426,7 +426,7 @@ func (e *ResourceAlreadyExistsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceAlreadyExistsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceAlreadyExistsException"
 	}
 	return *e.ErrorCodeOverride
@@ -455,7 +455,7 @@ func (e *ResourceInUseException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceInUseException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceInUseException"
 	}
 	return *e.ErrorCodeOverride
@@ -484,7 +484,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -514,7 +514,7 @@ func (e *ResourceNotReadyException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotReadyException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotReadyException"
 	}
 	return *e.ErrorCodeOverride
@@ -545,7 +545,7 @@ func (e *ServiceQuotaExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ServiceQuotaExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ServiceQuotaExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -575,7 +575,7 @@ func (e *ThrottlingException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ThrottlingException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ThrottlingException"
 	}
 	return *e.ErrorCodeOverride
@@ -605,7 +605,7 @@ func (e *VideoTooLargeException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *VideoTooLargeException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "VideoTooLargeException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/resiliencehub/types/errors.go b/service/resiliencehub/types/errors.go
index 06d140e771c..c8a86e55b26 100644
--- a/service/resiliencehub/types/errors.go
+++ b/service/resiliencehub/types/errors.go
@@ -28,7 +28,7 @@ func (e *AccessDeniedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AccessDeniedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AccessDeniedException"
 	}
 	return *e.ErrorCodeOverride
@@ -60,7 +60,7 @@ func (e *ConflictException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ConflictException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ConflictException"
 	}
 	return *e.ErrorCodeOverride
@@ -87,7 +87,7 @@ func (e *InternalServerException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalServerException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalServerException"
 	}
 	return *e.ErrorCodeOverride
@@ -116,7 +116,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -144,7 +144,7 @@ func (e *ServiceQuotaExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ServiceQuotaExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ServiceQuotaExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -173,7 +173,7 @@ func (e *ThrottlingException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ThrottlingException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ThrottlingException"
 	}
 	return *e.ErrorCodeOverride
@@ -199,7 +199,7 @@ func (e *ValidationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ValidationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ValidationException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/resourceexplorer2/types/errors.go b/service/resourceexplorer2/types/errors.go
index e56663bb30d..090825695ef 100644
--- a/service/resourceexplorer2/types/errors.go
+++ b/service/resourceexplorer2/types/errors.go
@@ -27,7 +27,7 @@ func (e *AccessDeniedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AccessDeniedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AccessDeniedException"
 	}
 	return *e.ErrorCodeOverride
@@ -55,7 +55,7 @@ func (e *ConflictException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ConflictException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ConflictException"
 	}
 	return *e.ErrorCodeOverride
@@ -82,7 +82,7 @@ func (e *InternalServerException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalServerException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalServerException"
 	}
 	return *e.ErrorCodeOverride
@@ -109,7 +109,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -138,7 +138,7 @@ func (e *ServiceQuotaExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ServiceQuotaExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ServiceQuotaExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -166,7 +166,7 @@ func (e *ThrottlingException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ThrottlingException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ThrottlingException"
 	}
 	return *e.ErrorCodeOverride
@@ -192,7 +192,7 @@ func (e *UnauthorizedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *UnauthorizedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "UnauthorizedException"
 	}
 	return *e.ErrorCodeOverride
@@ -221,7 +221,7 @@ func (e *ValidationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ValidationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ValidationException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/resourcegroups/types/errors.go b/service/resourcegroups/types/errors.go
index 540b7d5e906..6a16667f354 100644
--- a/service/resourcegroups/types/errors.go
+++ b/service/resourcegroups/types/errors.go
@@ -26,7 +26,7 @@ func (e *BadRequestException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *BadRequestException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "BadRequestException"
 	}
 	return *e.ErrorCodeOverride
@@ -52,7 +52,7 @@ func (e *ForbiddenException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ForbiddenException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ForbiddenException"
 	}
 	return *e.ErrorCodeOverride
@@ -78,7 +78,7 @@ func (e *InternalServerErrorException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalServerErrorException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalServerErrorException"
 	}
 	return *e.ErrorCodeOverride
@@ -104,7 +104,7 @@ func (e *MethodNotAllowedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *MethodNotAllowedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "MethodNotAllowedException"
 	}
 	return *e.ErrorCodeOverride
@@ -130,7 +130,7 @@ func (e *NotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *NotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "NotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -157,7 +157,7 @@ func (e *TooManyRequestsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TooManyRequestsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TooManyRequestsException"
 	}
 	return *e.ErrorCodeOverride
@@ -184,7 +184,7 @@ func (e *UnauthorizedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *UnauthorizedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "UnauthorizedException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/resourcegroupstaggingapi/types/errors.go b/service/resourcegroupstaggingapi/types/errors.go
index 18a006f12bd..48e8b29c28d 100644
--- a/service/resourcegroupstaggingapi/types/errors.go
+++ b/service/resourcegroupstaggingapi/types/errors.go
@@ -27,7 +27,7 @@ func (e *ConcurrentModificationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ConcurrentModificationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ConcurrentModificationException"
 	}
 	return *e.ErrorCodeOverride
@@ -69,7 +69,7 @@ func (e *ConstraintViolationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ConstraintViolationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ConstraintViolationException"
 	}
 	return *e.ErrorCodeOverride
@@ -96,7 +96,7 @@ func (e *InternalServiceException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalServiceException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalServiceException"
 	}
 	return *e.ErrorCodeOverride
@@ -139,7 +139,7 @@ func (e *InvalidParameterException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidParameterException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidParameterException"
 	}
 	return *e.ErrorCodeOverride
@@ -166,7 +166,7 @@ func (e *PaginationTokenExpiredException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *PaginationTokenExpiredException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "PaginationTokenExpiredException"
 	}
 	return *e.ErrorCodeOverride
@@ -192,7 +192,7 @@ func (e *ThrottledException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ThrottledException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ThrottledException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/robomaker/types/errors.go b/service/robomaker/types/errors.go
index 7b0ae37dfe5..b8147f571b5 100644
--- a/service/robomaker/types/errors.go
+++ b/service/robomaker/types/errors.go
@@ -26,7 +26,7 @@ func (e *ConcurrentDeploymentException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ConcurrentDeploymentException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ConcurrentDeploymentException"
 	}
 	return *e.ErrorCodeOverride
@@ -54,7 +54,7 @@ func (e *IdempotentParameterMismatchException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *IdempotentParameterMismatchException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "IdempotentParameterMismatchException"
 	}
 	return *e.ErrorCodeOverride
@@ -82,7 +82,7 @@ func (e *InternalServerException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalServerException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalServerException"
 	}
 	return *e.ErrorCodeOverride
@@ -109,7 +109,7 @@ func (e *InvalidParameterException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidParameterException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidParameterException"
 	}
 	return *e.ErrorCodeOverride
@@ -136,7 +136,7 @@ func (e *LimitExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *LimitExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "LimitExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -162,7 +162,7 @@ func (e *ResourceAlreadyExistsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceAlreadyExistsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceAlreadyExistsException"
 	}
 	return *e.ErrorCodeOverride
@@ -188,7 +188,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -214,7 +214,7 @@ func (e *ServiceUnavailableException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ServiceUnavailableException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ServiceUnavailableException"
 	}
 	return *e.ErrorCodeOverride
@@ -240,7 +240,7 @@ func (e *ThrottlingException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ThrottlingException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ThrottlingException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/rolesanywhere/types/errors.go b/service/rolesanywhere/types/errors.go
index ee6e045ae85..149690f80a5 100644
--- a/service/rolesanywhere/types/errors.go
+++ b/service/rolesanywhere/types/errors.go
@@ -26,7 +26,7 @@ func (e *AccessDeniedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AccessDeniedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AccessDeniedException"
 	}
 	return *e.ErrorCodeOverride
@@ -52,7 +52,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -78,7 +78,7 @@ func (e *TooManyTagsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TooManyTagsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TooManyTagsException"
 	}
 	return *e.ErrorCodeOverride
@@ -104,7 +104,7 @@ func (e *ValidationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ValidationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ValidationException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/route53/types/errors.go b/service/route53/types/errors.go
index 73f4125ff86..8ae91df46a7 100644
--- a/service/route53/types/errors.go
+++ b/service/route53/types/errors.go
@@ -26,7 +26,7 @@ func (e *CidrBlockInUseException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *CidrBlockInUseException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "CidrBlockInUseException"
 	}
 	return *e.ErrorCodeOverride
@@ -53,7 +53,7 @@ func (e *CidrCollectionAlreadyExistsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *CidrCollectionAlreadyExistsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "CidrCollectionAlreadyExistsException"
 	}
 	return *e.ErrorCodeOverride
@@ -81,7 +81,7 @@ func (e *CidrCollectionInUseException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *CidrCollectionInUseException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "CidrCollectionInUseException"
 	}
 	return *e.ErrorCodeOverride
@@ -108,7 +108,7 @@ func (e *CidrCollectionVersionMismatchException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *CidrCollectionVersionMismatchException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "CidrCollectionVersionMismatchException"
 	}
 	return *e.ErrorCodeOverride
@@ -137,7 +137,7 @@ func (e *ConcurrentModification) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ConcurrentModification) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ConcurrentModification"
 	}
 	return *e.ErrorCodeOverride
@@ -181,7 +181,7 @@ func (e *ConflictingDomainExists) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ConflictingDomainExists) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ConflictingDomainExists"
 	}
 	return *e.ErrorCodeOverride
@@ -210,7 +210,7 @@ func (e *ConflictingTypes) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ConflictingTypes) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ConflictingTypes"
 	}
 	return *e.ErrorCodeOverride
@@ -237,7 +237,7 @@ func (e *DelegationSetAlreadyCreated) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DelegationSetAlreadyCreated) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DelegationSetAlreadyCreated"
 	}
 	return *e.ErrorCodeOverride
@@ -263,7 +263,7 @@ func (e *DelegationSetAlreadyReusable) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DelegationSetAlreadyReusable) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DelegationSetAlreadyReusable"
 	}
 	return *e.ErrorCodeOverride
@@ -290,7 +290,7 @@ func (e *DelegationSetInUse) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DelegationSetInUse) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DelegationSetInUse"
 	}
 	return *e.ErrorCodeOverride
@@ -320,7 +320,7 @@ func (e *DelegationSetNotAvailable) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DelegationSetNotAvailable) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DelegationSetNotAvailable"
 	}
 	return *e.ErrorCodeOverride
@@ -346,7 +346,7 @@ func (e *DelegationSetNotReusable) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DelegationSetNotReusable) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DelegationSetNotReusable"
 	}
 	return *e.ErrorCodeOverride
@@ -372,7 +372,7 @@ func (e *DNSSECNotFound) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DNSSECNotFound) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DNSSECNotFound"
 	}
 	return *e.ErrorCodeOverride
@@ -407,7 +407,7 @@ func (e *HealthCheckAlreadyExists) ErrorMessage() string {
 	return *e.Message
 }
 func (e *HealthCheckAlreadyExists) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "HealthCheckAlreadyExists"
 	}
 	return *e.ErrorCodeOverride
@@ -433,7 +433,7 @@ func (e *HealthCheckInUse) ErrorMessage() string {
 	return *e.Message
 }
 func (e *HealthCheckInUse) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "HealthCheckInUse"
 	}
 	return *e.ErrorCodeOverride
@@ -460,7 +460,7 @@ func (e *HealthCheckVersionMismatch) ErrorMessage() string {
 	return *e.Message
 }
 func (e *HealthCheckVersionMismatch) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "HealthCheckVersionMismatch"
 	}
 	return *e.ErrorCodeOverride
@@ -488,7 +488,7 @@ func (e *HostedZoneAlreadyExists) ErrorMessage() string {
 	return *e.Message
 }
 func (e *HostedZoneAlreadyExists) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "HostedZoneAlreadyExists"
 	}
 	return *e.ErrorCodeOverride
@@ -514,7 +514,7 @@ func (e *HostedZoneNotEmpty) ErrorMessage() string {
 	return *e.Message
 }
 func (e *HostedZoneNotEmpty) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "HostedZoneNotEmpty"
 	}
 	return *e.ErrorCodeOverride
@@ -540,7 +540,7 @@ func (e *HostedZoneNotFound) ErrorMessage() string {
 	return *e.Message
 }
 func (e *HostedZoneNotFound) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "HostedZoneNotFound"
 	}
 	return *e.ErrorCodeOverride
@@ -566,7 +566,7 @@ func (e *HostedZoneNotPrivate) ErrorMessage() string {
 	return *e.Message
 }
 func (e *HostedZoneNotPrivate) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "HostedZoneNotPrivate"
 	}
 	return *e.ErrorCodeOverride
@@ -593,7 +593,7 @@ func (e *HostedZonePartiallyDelegated) ErrorMessage() string {
 	return *e.Message
 }
 func (e *HostedZonePartiallyDelegated) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "HostedZonePartiallyDelegated"
 	}
 	return *e.ErrorCodeOverride
@@ -620,7 +620,7 @@ func (e *IncompatibleVersion) ErrorMessage() string {
 	return *e.Message
 }
 func (e *IncompatibleVersion) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "IncompatibleVersion"
 	}
 	return *e.ErrorCodeOverride
@@ -666,7 +666,7 @@ func (e *InsufficientCloudWatchLogsResourcePolicy) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InsufficientCloudWatchLogsResourcePolicy) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InsufficientCloudWatchLogsResourcePolicy"
 	}
 	return *e.ErrorCodeOverride
@@ -694,7 +694,7 @@ func (e *InvalidArgument) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidArgument) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidArgument"
 	}
 	return *e.ErrorCodeOverride
@@ -723,7 +723,7 @@ func (e *InvalidChangeBatch) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidChangeBatch) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidChangeBatch"
 	}
 	return *e.ErrorCodeOverride
@@ -749,7 +749,7 @@ func (e *InvalidDomainName) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidDomainName) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidDomainName"
 	}
 	return *e.ErrorCodeOverride
@@ -775,7 +775,7 @@ func (e *InvalidInput) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidInput) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidInput"
 	}
 	return *e.ErrorCodeOverride
@@ -801,7 +801,7 @@ func (e *InvalidKeySigningKeyName) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidKeySigningKeyName) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidKeySigningKeyName"
 	}
 	return *e.ErrorCodeOverride
@@ -828,7 +828,7 @@ func (e *InvalidKeySigningKeyStatus) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidKeySigningKeyStatus) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidKeySigningKeyStatus"
 	}
 	return *e.ErrorCodeOverride
@@ -855,7 +855,7 @@ func (e *InvalidKMSArn) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidKMSArn) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidKMSArn"
 	}
 	return *e.ErrorCodeOverride
@@ -882,7 +882,7 @@ func (e *InvalidPaginationToken) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidPaginationToken) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidPaginationToken"
 	}
 	return *e.ErrorCodeOverride
@@ -909,7 +909,7 @@ func (e *InvalidSigningStatus) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidSigningStatus) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidSigningStatus"
 	}
 	return *e.ErrorCodeOverride
@@ -936,7 +936,7 @@ func (e *InvalidTrafficPolicyDocument) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidTrafficPolicyDocument) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidTrafficPolicyDocument"
 	}
 	return *e.ErrorCodeOverride
@@ -963,7 +963,7 @@ func (e *InvalidVPCId) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidVPCId) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidVPCId"
 	}
 	return *e.ErrorCodeOverride
@@ -990,7 +990,7 @@ func (e *KeySigningKeyAlreadyExists) ErrorMessage() string {
 	return *e.Message
 }
 func (e *KeySigningKeyAlreadyExists) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "KeySigningKeyAlreadyExists"
 	}
 	return *e.ErrorCodeOverride
@@ -1016,7 +1016,7 @@ func (e *KeySigningKeyInParentDSRecord) ErrorMessage() string {
 	return *e.Message
 }
 func (e *KeySigningKeyInParentDSRecord) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "KeySigningKeyInParentDSRecord"
 	}
 	return *e.ErrorCodeOverride
@@ -1044,7 +1044,7 @@ func (e *KeySigningKeyInUse) ErrorMessage() string {
 	return *e.Message
 }
 func (e *KeySigningKeyInUse) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "KeySigningKeyInUse"
 	}
 	return *e.ErrorCodeOverride
@@ -1070,7 +1070,7 @@ func (e *KeySigningKeyWithActiveStatusNotFound) ErrorMessage() string {
 	return *e.Message
 }
 func (e *KeySigningKeyWithActiveStatusNotFound) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "KeySigningKeyWithActiveStatusNotFound"
 	}
 	return *e.ErrorCodeOverride
@@ -1100,7 +1100,7 @@ func (e *LastVPCAssociation) ErrorMessage() string {
 	return *e.Message
 }
 func (e *LastVPCAssociation) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "LastVPCAssociation"
 	}
 	return *e.ErrorCodeOverride
@@ -1129,7 +1129,7 @@ func (e *LimitsExceeded) ErrorMessage() string {
 	return *e.Message
 }
 func (e *LimitsExceeded) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "LimitsExceeded"
 	}
 	return *e.ErrorCodeOverride
@@ -1155,7 +1155,7 @@ func (e *NoSuchChange) ErrorMessage() string {
 	return *e.Message
 }
 func (e *NoSuchChange) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "NoSuchChange"
 	}
 	return *e.ErrorCodeOverride
@@ -1181,7 +1181,7 @@ func (e *NoSuchCidrCollectionException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *NoSuchCidrCollectionException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "NoSuchCidrCollectionException"
 	}
 	return *e.ErrorCodeOverride
@@ -1207,7 +1207,7 @@ func (e *NoSuchCidrLocationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *NoSuchCidrLocationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "NoSuchCidrLocationException"
 	}
 	return *e.ErrorCodeOverride
@@ -1233,7 +1233,7 @@ func (e *NoSuchCloudWatchLogsLogGroup) ErrorMessage() string {
 	return *e.Message
 }
 func (e *NoSuchCloudWatchLogsLogGroup) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "NoSuchCloudWatchLogsLogGroup"
 	}
 	return *e.ErrorCodeOverride
@@ -1259,7 +1259,7 @@ func (e *NoSuchDelegationSet) ErrorMessage() string {
 	return *e.Message
 }
 func (e *NoSuchDelegationSet) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "NoSuchDelegationSet"
 	}
 	return *e.ErrorCodeOverride
@@ -1288,7 +1288,7 @@ func (e *NoSuchGeoLocation) ErrorMessage() string {
 	return *e.Message
 }
 func (e *NoSuchGeoLocation) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "NoSuchGeoLocation"
 	}
 	return *e.ErrorCodeOverride
@@ -1314,7 +1314,7 @@ func (e *NoSuchHealthCheck) ErrorMessage() string {
 	return *e.Message
 }
 func (e *NoSuchHealthCheck) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "NoSuchHealthCheck"
 	}
 	return *e.ErrorCodeOverride
@@ -1340,7 +1340,7 @@ func (e *NoSuchHostedZone) ErrorMessage() string {
 	return *e.Message
 }
 func (e *NoSuchHostedZone) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "NoSuchHostedZone"
 	}
 	return *e.ErrorCodeOverride
@@ -1366,7 +1366,7 @@ func (e *NoSuchKeySigningKey) ErrorMessage() string {
 	return *e.Message
 }
 func (e *NoSuchKeySigningKey) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "NoSuchKeySigningKey"
 	}
 	return *e.ErrorCodeOverride
@@ -1392,7 +1392,7 @@ func (e *NoSuchQueryLoggingConfig) ErrorMessage() string {
 	return *e.Message
 }
 func (e *NoSuchQueryLoggingConfig) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "NoSuchQueryLoggingConfig"
 	}
 	return *e.ErrorCodeOverride
@@ -1418,7 +1418,7 @@ func (e *NoSuchTrafficPolicy) ErrorMessage() string {
 	return *e.Message
 }
 func (e *NoSuchTrafficPolicy) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "NoSuchTrafficPolicy"
 	}
 	return *e.ErrorCodeOverride
@@ -1444,7 +1444,7 @@ func (e *NoSuchTrafficPolicyInstance) ErrorMessage() string {
 	return *e.Message
 }
 func (e *NoSuchTrafficPolicyInstance) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "NoSuchTrafficPolicyInstance"
 	}
 	return *e.ErrorCodeOverride
@@ -1471,7 +1471,7 @@ func (e *NotAuthorizedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *NotAuthorizedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "NotAuthorizedException"
 	}
 	return *e.ErrorCodeOverride
@@ -1501,7 +1501,7 @@ func (e *PriorRequestNotComplete) ErrorMessage() string {
 	return *e.Message
 }
 func (e *PriorRequestNotComplete) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "PriorRequestNotComplete"
 	}
 	return *e.ErrorCodeOverride
@@ -1528,7 +1528,7 @@ func (e *PublicZoneVPCAssociation) ErrorMessage() string {
 	return *e.Message
 }
 func (e *PublicZoneVPCAssociation) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "PublicZoneVPCAssociation"
 	}
 	return *e.ErrorCodeOverride
@@ -1555,7 +1555,7 @@ func (e *QueryLoggingConfigAlreadyExists) ErrorMessage() string {
 	return *e.Message
 }
 func (e *QueryLoggingConfigAlreadyExists) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "QueryLoggingConfigAlreadyExists"
 	}
 	return *e.ErrorCodeOverride
@@ -1581,7 +1581,7 @@ func (e *ThrottlingException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ThrottlingException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ThrottlingException"
 	}
 	return *e.ErrorCodeOverride
@@ -1618,7 +1618,7 @@ func (e *TooManyHealthChecks) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TooManyHealthChecks) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TooManyHealthChecks"
 	}
 	return *e.ErrorCodeOverride
@@ -1656,7 +1656,7 @@ func (e *TooManyHostedZones) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TooManyHostedZones) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TooManyHostedZones"
 	}
 	return *e.ErrorCodeOverride
@@ -1683,7 +1683,7 @@ func (e *TooManyKeySigningKeys) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TooManyKeySigningKeys) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TooManyKeySigningKeys"
 	}
 	return *e.ErrorCodeOverride
@@ -1717,7 +1717,7 @@ func (e *TooManyTrafficPolicies) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TooManyTrafficPolicies) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TooManyTrafficPolicies"
 	}
 	return *e.ErrorCodeOverride
@@ -1751,7 +1751,7 @@ func (e *TooManyTrafficPolicyInstances) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TooManyTrafficPolicyInstances) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TooManyTrafficPolicyInstances"
 	}
 	return *e.ErrorCodeOverride
@@ -1784,7 +1784,7 @@ func (e *TooManyTrafficPolicyVersionsForCurrentPolicy) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TooManyTrafficPolicyVersionsForCurrentPolicy) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TooManyTrafficPolicyVersionsForCurrentPolicy"
 	}
 	return *e.ErrorCodeOverride
@@ -1816,7 +1816,7 @@ func (e *TooManyVPCAssociationAuthorizations) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TooManyVPCAssociationAuthorizations) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TooManyVPCAssociationAuthorizations"
 	}
 	return *e.ErrorCodeOverride
@@ -1844,7 +1844,7 @@ func (e *TrafficPolicyAlreadyExists) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TrafficPolicyAlreadyExists) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TrafficPolicyAlreadyExists"
 	}
 	return *e.ErrorCodeOverride
@@ -1870,7 +1870,7 @@ func (e *TrafficPolicyInstanceAlreadyExists) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TrafficPolicyInstanceAlreadyExists) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TrafficPolicyInstanceAlreadyExists"
 	}
 	return *e.ErrorCodeOverride
@@ -1899,7 +1899,7 @@ func (e *TrafficPolicyInUse) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TrafficPolicyInUse) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TrafficPolicyInUse"
 	}
 	return *e.ErrorCodeOverride
@@ -1926,7 +1926,7 @@ func (e *VPCAssociationAuthorizationNotFound) ErrorMessage() string {
 	return *e.Message
 }
 func (e *VPCAssociationAuthorizationNotFound) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "VPCAssociationAuthorizationNotFound"
 	}
 	return *e.ErrorCodeOverride
@@ -1954,7 +1954,7 @@ func (e *VPCAssociationNotFound) ErrorMessage() string {
 	return *e.Message
 }
 func (e *VPCAssociationNotFound) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "VPCAssociationNotFound"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/route53domains/types/errors.go b/service/route53domains/types/errors.go
index 3e92c1884c0..ad1d3dc413e 100644
--- a/service/route53domains/types/errors.go
+++ b/service/route53domains/types/errors.go
@@ -28,7 +28,7 @@ func (e *DnssecLimitExceeded) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DnssecLimitExceeded) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DnssecLimitExceeded"
 	}
 	return *e.ErrorCodeOverride
@@ -54,7 +54,7 @@ func (e *DomainLimitExceeded) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DomainLimitExceeded) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DomainLimitExceeded"
 	}
 	return *e.ErrorCodeOverride
@@ -80,7 +80,7 @@ func (e *DuplicateRequest) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DuplicateRequest) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DuplicateRequest"
 	}
 	return *e.ErrorCodeOverride
@@ -109,7 +109,7 @@ func (e *InvalidInput) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidInput) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidInput"
 	}
 	return *e.ErrorCodeOverride
@@ -136,7 +136,7 @@ func (e *OperationLimitExceeded) ErrorMessage() string {
 	return *e.Message
 }
 func (e *OperationLimitExceeded) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "OperationLimitExceeded"
 	}
 	return *e.ErrorCodeOverride
@@ -162,7 +162,7 @@ func (e *TLDRulesViolation) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TLDRulesViolation) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TLDRulesViolation"
 	}
 	return *e.ErrorCodeOverride
@@ -188,7 +188,7 @@ func (e *UnsupportedTLD) ErrorMessage() string {
 	return *e.Message
 }
 func (e *UnsupportedTLD) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "UnsupportedTLD"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/route53recoverycluster/types/errors.go b/service/route53recoverycluster/types/errors.go
index 51f85bce2eb..ac209c014e5 100644
--- a/service/route53recoverycluster/types/errors.go
+++ b/service/route53recoverycluster/types/errors.go
@@ -26,7 +26,7 @@ func (e *AccessDeniedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AccessDeniedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AccessDeniedException"
 	}
 	return *e.ErrorCodeOverride
@@ -55,7 +55,7 @@ func (e *ConflictException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ConflictException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ConflictException"
 	}
 	return *e.ErrorCodeOverride
@@ -81,7 +81,7 @@ func (e *EndpointTemporarilyUnavailableException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *EndpointTemporarilyUnavailableException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "EndpointTemporarilyUnavailableException"
 	}
 	return *e.ErrorCodeOverride
@@ -111,7 +111,7 @@ func (e *InternalServerException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalServerException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalServerException"
 	}
 	return *e.ErrorCodeOverride
@@ -140,7 +140,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -172,7 +172,7 @@ func (e *ServiceLimitExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ServiceLimitExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ServiceLimitExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -200,7 +200,7 @@ func (e *ThrottlingException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ThrottlingException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ThrottlingException"
 	}
 	return *e.ErrorCodeOverride
@@ -229,7 +229,7 @@ func (e *ValidationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ValidationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ValidationException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/route53recoverycontrolconfig/types/errors.go b/service/route53recoverycontrolconfig/types/errors.go
index 616cc35a066..661c4f91a3c 100644
--- a/service/route53recoverycontrolconfig/types/errors.go
+++ b/service/route53recoverycontrolconfig/types/errors.go
@@ -26,7 +26,7 @@ func (e *AccessDeniedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AccessDeniedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AccessDeniedException"
 	}
 	return *e.ErrorCodeOverride
@@ -52,7 +52,7 @@ func (e *ConflictException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ConflictException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ConflictException"
 	}
 	return *e.ErrorCodeOverride
@@ -78,7 +78,7 @@ func (e *InternalServerException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalServerException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalServerException"
 	}
 	return *e.ErrorCodeOverride
@@ -105,7 +105,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -132,7 +132,7 @@ func (e *ServiceQuotaExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ServiceQuotaExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ServiceQuotaExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -158,7 +158,7 @@ func (e *ThrottlingException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ThrottlingException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ThrottlingException"
 	}
 	return *e.ErrorCodeOverride
@@ -186,7 +186,7 @@ func (e *ValidationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ValidationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ValidationException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/route53recoveryreadiness/types/errors.go b/service/route53recoveryreadiness/types/errors.go
index c28de9fb34d..04e8b947efb 100644
--- a/service/route53recoveryreadiness/types/errors.go
+++ b/service/route53recoveryreadiness/types/errors.go
@@ -26,7 +26,7 @@ func (e *AccessDeniedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AccessDeniedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AccessDeniedException"
 	}
 	return *e.ErrorCodeOverride
@@ -52,7 +52,7 @@ func (e *ConflictException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ConflictException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ConflictException"
 	}
 	return *e.ErrorCodeOverride
@@ -78,7 +78,7 @@ func (e *InternalServerException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalServerException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalServerException"
 	}
 	return *e.ErrorCodeOverride
@@ -104,7 +104,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -130,7 +130,7 @@ func (e *ThrottlingException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ThrottlingException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ThrottlingException"
 	}
 	return *e.ErrorCodeOverride
@@ -156,7 +156,7 @@ func (e *ValidationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ValidationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ValidationException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/route53resolver/types/errors.go b/service/route53resolver/types/errors.go
index 090c1c7e0cc..e82ae900992 100644
--- a/service/route53resolver/types/errors.go
+++ b/service/route53resolver/types/errors.go
@@ -27,7 +27,7 @@ func (e *AccessDeniedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AccessDeniedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AccessDeniedException"
 	}
 	return *e.ErrorCodeOverride
@@ -52,7 +52,7 @@ func (e *ConflictException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ConflictException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ConflictException"
 	}
 	return *e.ErrorCodeOverride
@@ -78,7 +78,7 @@ func (e *InternalServiceErrorException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalServiceErrorException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalServiceErrorException"
 	}
 	return *e.ErrorCodeOverride
@@ -104,7 +104,7 @@ func (e *InvalidNextTokenException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidNextTokenException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidNextTokenException"
 	}
 	return *e.ErrorCodeOverride
@@ -132,7 +132,7 @@ func (e *InvalidParameterException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidParameterException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidParameterException"
 	}
 	return *e.ErrorCodeOverride
@@ -158,7 +158,7 @@ func (e *InvalidPolicyDocument) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidPolicyDocument) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidPolicyDocument"
 	}
 	return *e.ErrorCodeOverride
@@ -184,7 +184,7 @@ func (e *InvalidRequestException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidRequestException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidRequestException"
 	}
 	return *e.ErrorCodeOverride
@@ -210,7 +210,7 @@ func (e *InvalidTagException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidTagException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidTagException"
 	}
 	return *e.ErrorCodeOverride
@@ -238,7 +238,7 @@ func (e *LimitExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *LimitExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "LimitExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -266,7 +266,7 @@ func (e *ResourceExistsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceExistsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceExistsException"
 	}
 	return *e.ErrorCodeOverride
@@ -294,7 +294,7 @@ func (e *ResourceInUseException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceInUseException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceInUseException"
 	}
 	return *e.ErrorCodeOverride
@@ -322,7 +322,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -350,7 +350,7 @@ func (e *ResourceUnavailableException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceUnavailableException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceUnavailableException"
 	}
 	return *e.ErrorCodeOverride
@@ -376,7 +376,7 @@ func (e *ThrottlingException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ThrottlingException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ThrottlingException"
 	}
 	return *e.ErrorCodeOverride
@@ -402,7 +402,7 @@ func (e *UnknownResourceException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *UnknownResourceException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "UnknownResourceException"
 	}
 	return *e.ErrorCodeOverride
@@ -427,7 +427,7 @@ func (e *ValidationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ValidationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ValidationException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/rum/types/errors.go b/service/rum/types/errors.go
index 65beb19900a..61e3b1b174a 100644
--- a/service/rum/types/errors.go
+++ b/service/rum/types/errors.go
@@ -26,7 +26,7 @@ func (e *AccessDeniedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AccessDeniedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AccessDeniedException"
 	}
 	return *e.ErrorCodeOverride
@@ -55,7 +55,7 @@ func (e *ConflictException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ConflictException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ConflictException"
 	}
 	return *e.ErrorCodeOverride
@@ -83,7 +83,7 @@ func (e *InternalServerException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalServerException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalServerException"
 	}
 	return *e.ErrorCodeOverride
@@ -112,7 +112,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -138,7 +138,7 @@ func (e *ServiceQuotaExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ServiceQuotaExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ServiceQuotaExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -168,7 +168,7 @@ func (e *ThrottlingException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ThrottlingException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ThrottlingException"
 	}
 	return *e.ErrorCodeOverride
@@ -194,7 +194,7 @@ func (e *ValidationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ValidationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ValidationException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/s3/types/errors.go b/service/s3/types/errors.go
index 4567a385cbb..18134c52df4 100644
--- a/service/s3/types/errors.go
+++ b/service/s3/types/errors.go
@@ -27,7 +27,7 @@ func (e *BucketAlreadyExists) ErrorMessage() string {
 	return *e.Message
 }
 func (e *BucketAlreadyExists) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "BucketAlreadyExists"
 	}
 	return *e.ErrorCodeOverride
@@ -57,7 +57,7 @@ func (e *BucketAlreadyOwnedByYou) ErrorMessage() string {
 	return *e.Message
 }
 func (e *BucketAlreadyOwnedByYou) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "BucketAlreadyOwnedByYou"
 	}
 	return *e.ErrorCodeOverride
@@ -86,7 +86,7 @@ func (e *InvalidObjectState) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidObjectState) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidObjectState"
 	}
 	return *e.ErrorCodeOverride
@@ -112,7 +112,7 @@ func (e *NoSuchBucket) ErrorMessage() string {
 	return *e.Message
 }
 func (e *NoSuchBucket) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "NoSuchBucket"
 	}
 	return *e.ErrorCodeOverride
@@ -138,7 +138,7 @@ func (e *NoSuchKey) ErrorMessage() string {
 	return *e.Message
 }
 func (e *NoSuchKey) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "NoSuchKey"
 	}
 	return *e.ErrorCodeOverride
@@ -164,7 +164,7 @@ func (e *NoSuchUpload) ErrorMessage() string {
 	return *e.Message
 }
 func (e *NoSuchUpload) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "NoSuchUpload"
 	}
 	return *e.ErrorCodeOverride
@@ -190,7 +190,7 @@ func (e *NotFound) ErrorMessage() string {
 	return *e.Message
 }
 func (e *NotFound) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "NotFound"
 	}
 	return *e.ErrorCodeOverride
@@ -216,7 +216,7 @@ func (e *ObjectAlreadyInActiveTierError) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ObjectAlreadyInActiveTierError) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ObjectAlreadyInActiveTierError"
 	}
 	return *e.ErrorCodeOverride
@@ -243,7 +243,7 @@ func (e *ObjectNotInActiveTierError) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ObjectNotInActiveTierError) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ObjectNotInActiveTierError"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/s3control/types/errors.go b/service/s3control/types/errors.go
index fe06cea1e17..6d47d4bde0c 100644
--- a/service/s3control/types/errors.go
+++ b/service/s3control/types/errors.go
@@ -25,7 +25,7 @@ func (e *BadRequestException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *BadRequestException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "BadRequestException"
 	}
 	return *e.ErrorCodeOverride
@@ -53,7 +53,7 @@ func (e *BucketAlreadyExists) ErrorMessage() string {
 	return *e.Message
 }
 func (e *BucketAlreadyExists) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "BucketAlreadyExists"
 	}
 	return *e.ErrorCodeOverride
@@ -79,7 +79,7 @@ func (e *BucketAlreadyOwnedByYou) ErrorMessage() string {
 	return *e.Message
 }
 func (e *BucketAlreadyOwnedByYou) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "BucketAlreadyOwnedByYou"
 	}
 	return *e.ErrorCodeOverride
@@ -104,7 +104,7 @@ func (e *IdempotencyException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *IdempotencyException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "IdempotencyException"
 	}
 	return *e.ErrorCodeOverride
@@ -129,7 +129,7 @@ func (e *InternalServiceException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalServiceException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalServiceException"
 	}
 	return *e.ErrorCodeOverride
@@ -154,7 +154,7 @@ func (e *InvalidNextTokenException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidNextTokenException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidNextTokenException"
 	}
 	return *e.ErrorCodeOverride
@@ -179,7 +179,7 @@ func (e *InvalidRequestException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidRequestException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidRequestException"
 	}
 	return *e.ErrorCodeOverride
@@ -204,7 +204,7 @@ func (e *JobStatusException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *JobStatusException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "JobStatusException"
 	}
 	return *e.ErrorCodeOverride
@@ -231,7 +231,7 @@ func (e *NoSuchPublicAccessBlockConfiguration) ErrorMessage() string {
 	return *e.Message
 }
 func (e *NoSuchPublicAccessBlockConfiguration) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "NoSuchPublicAccessBlockConfiguration"
 	}
 	return *e.ErrorCodeOverride
@@ -258,7 +258,7 @@ func (e *NotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *NotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "NotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -283,7 +283,7 @@ func (e *TooManyRequestsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TooManyRequestsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TooManyRequestsException"
 	}
 	return *e.ErrorCodeOverride
@@ -309,7 +309,7 @@ func (e *TooManyTagsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TooManyTagsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TooManyTagsException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/s3outposts/types/errors.go b/service/s3outposts/types/errors.go
index 44a76190315..ef669ea6776 100644
--- a/service/s3outposts/types/errors.go
+++ b/service/s3outposts/types/errors.go
@@ -26,7 +26,7 @@ func (e *AccessDeniedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AccessDeniedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AccessDeniedException"
 	}
 	return *e.ErrorCodeOverride
@@ -52,7 +52,7 @@ func (e *ConflictException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ConflictException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ConflictException"
 	}
 	return *e.ErrorCodeOverride
@@ -78,7 +78,7 @@ func (e *InternalServerException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalServerException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalServerException"
 	}
 	return *e.ErrorCodeOverride
@@ -104,7 +104,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -130,7 +130,7 @@ func (e *ValidationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ValidationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ValidationException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/sagemaker/types/errors.go b/service/sagemaker/types/errors.go
index 7a2232fdf95..f1e14cdd27e 100644
--- a/service/sagemaker/types/errors.go
+++ b/service/sagemaker/types/errors.go
@@ -27,7 +27,7 @@ func (e *ConflictException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ConflictException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ConflictException"
 	}
 	return *e.ErrorCodeOverride
@@ -53,7 +53,7 @@ func (e *ResourceInUse) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceInUse) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceInUse"
 	}
 	return *e.ErrorCodeOverride
@@ -80,7 +80,7 @@ func (e *ResourceLimitExceeded) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceLimitExceeded) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceLimitExceeded"
 	}
 	return *e.ErrorCodeOverride
@@ -106,7 +106,7 @@ func (e *ResourceNotFound) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFound) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFound"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/sagemakera2iruntime/types/errors.go b/service/sagemakera2iruntime/types/errors.go
index b08329583f5..5b09ad8f2d7 100644
--- a/service/sagemakera2iruntime/types/errors.go
+++ b/service/sagemakera2iruntime/types/errors.go
@@ -28,7 +28,7 @@ func (e *ConflictException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ConflictException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ConflictException"
 	}
 	return *e.ErrorCodeOverride
@@ -55,7 +55,7 @@ func (e *InternalServerException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalServerException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalServerException"
 	}
 	return *e.ErrorCodeOverride
@@ -82,7 +82,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -116,7 +116,7 @@ func (e *ServiceQuotaExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ServiceQuotaExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ServiceQuotaExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -142,7 +142,7 @@ func (e *ThrottlingException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ThrottlingException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ThrottlingException"
 	}
 	return *e.ErrorCodeOverride
@@ -168,7 +168,7 @@ func (e *ValidationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ValidationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ValidationException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/sagemakeredge/types/errors.go b/service/sagemakeredge/types/errors.go
index 34d11b8cbd8..5ee3c91aa64 100644
--- a/service/sagemakeredge/types/errors.go
+++ b/service/sagemakeredge/types/errors.go
@@ -27,7 +27,7 @@ func (e *InternalServiceException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalServiceException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalServiceException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/sagemakerfeaturestoreruntime/types/errors.go b/service/sagemakerfeaturestoreruntime/types/errors.go
index bf594afcba2..3e2e53e5f8c 100644
--- a/service/sagemakerfeaturestoreruntime/types/errors.go
+++ b/service/sagemakerfeaturestoreruntime/types/errors.go
@@ -26,7 +26,7 @@ func (e *AccessForbidden) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AccessForbidden) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AccessForbidden"
 	}
 	return *e.ErrorCodeOverride
@@ -53,7 +53,7 @@ func (e *InternalFailure) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalFailure) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalFailure"
 	}
 	return *e.ErrorCodeOverride
@@ -79,7 +79,7 @@ func (e *ResourceNotFound) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFound) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFound"
 	}
 	return *e.ErrorCodeOverride
@@ -105,7 +105,7 @@ func (e *ServiceUnavailable) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ServiceUnavailable) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ServiceUnavailable"
 	}
 	return *e.ErrorCodeOverride
@@ -131,7 +131,7 @@ func (e *ValidationError) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ValidationError) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ValidationError"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/sagemakergeospatial/types/errors.go b/service/sagemakergeospatial/types/errors.go
index 3e69a41a1f7..8a8d996ca1e 100644
--- a/service/sagemakergeospatial/types/errors.go
+++ b/service/sagemakergeospatial/types/errors.go
@@ -26,7 +26,7 @@ func (e *AccessDeniedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AccessDeniedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AccessDeniedException"
 	}
 	return *e.ErrorCodeOverride
@@ -53,7 +53,7 @@ func (e *ConflictException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ConflictException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ConflictException"
 	}
 	return *e.ErrorCodeOverride
@@ -82,7 +82,7 @@ func (e *InternalServerException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalServerException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalServerException"
 	}
 	return *e.ErrorCodeOverride
@@ -109,7 +109,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -137,7 +137,7 @@ func (e *ServiceQuotaExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ServiceQuotaExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ServiceQuotaExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -165,7 +165,7 @@ func (e *ThrottlingException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ThrottlingException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ThrottlingException"
 	}
 	return *e.ErrorCodeOverride
@@ -194,7 +194,7 @@ func (e *ValidationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ValidationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ValidationException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/sagemakerruntime/types/errors.go b/service/sagemakerruntime/types/errors.go
index 1df2a061de9..efcd7be5047 100644
--- a/service/sagemakerruntime/types/errors.go
+++ b/service/sagemakerruntime/types/errors.go
@@ -27,7 +27,7 @@ func (e *InternalDependencyException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalDependencyException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalDependencyException"
 	}
 	return *e.ErrorCodeOverride
@@ -53,7 +53,7 @@ func (e *InternalFailure) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalFailure) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalFailure"
 	}
 	return *e.ErrorCodeOverride
@@ -83,7 +83,7 @@ func (e *ModelError) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ModelError) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ModelError"
 	}
 	return *e.ErrorCodeOverride
@@ -111,7 +111,7 @@ func (e *ModelNotReadyException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ModelNotReadyException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ModelNotReadyException"
 	}
 	return *e.ErrorCodeOverride
@@ -137,7 +137,7 @@ func (e *ServiceUnavailable) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ServiceUnavailable) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ServiceUnavailable"
 	}
 	return *e.ErrorCodeOverride
@@ -163,7 +163,7 @@ func (e *ValidationError) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ValidationError) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ValidationError"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/savingsplans/types/errors.go b/service/savingsplans/types/errors.go
index 67424b9aba8..5f0e4ccb100 100644
--- a/service/savingsplans/types/errors.go
+++ b/service/savingsplans/types/errors.go
@@ -26,7 +26,7 @@ func (e *InternalServerException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalServerException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalServerException"
 	}
 	return *e.ErrorCodeOverride
@@ -52,7 +52,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -78,7 +78,7 @@ func (e *ServiceQuotaExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ServiceQuotaExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ServiceQuotaExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -104,7 +104,7 @@ func (e *ValidationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ValidationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ValidationException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/scheduler/types/errors.go b/service/scheduler/types/errors.go
index 97af2d15fea..8d21c4d7032 100644
--- a/service/scheduler/types/errors.go
+++ b/service/scheduler/types/errors.go
@@ -26,7 +26,7 @@ func (e *ConflictException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ConflictException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ConflictException"
 	}
 	return *e.ErrorCodeOverride
@@ -52,7 +52,7 @@ func (e *InternalServerException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalServerException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalServerException"
 	}
 	return *e.ErrorCodeOverride
@@ -78,7 +78,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -104,7 +104,7 @@ func (e *ServiceQuotaExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ServiceQuotaExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ServiceQuotaExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -130,7 +130,7 @@ func (e *ThrottlingException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ThrottlingException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ThrottlingException"
 	}
 	return *e.ErrorCodeOverride
@@ -156,7 +156,7 @@ func (e *ValidationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ValidationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ValidationException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/schemas/types/errors.go b/service/schemas/types/errors.go
index f31aa2f8dd8..7b730324174 100644
--- a/service/schemas/types/errors.go
+++ b/service/schemas/types/errors.go
@@ -27,7 +27,7 @@ func (e *BadRequestException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *BadRequestException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "BadRequestException"
 	}
 	return *e.ErrorCodeOverride
@@ -54,7 +54,7 @@ func (e *ConflictException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ConflictException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ConflictException"
 	}
 	return *e.ErrorCodeOverride
@@ -81,7 +81,7 @@ func (e *ForbiddenException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ForbiddenException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ForbiddenException"
 	}
 	return *e.ErrorCodeOverride
@@ -108,7 +108,7 @@ func (e *GoneException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *GoneException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "GoneException"
 	}
 	return *e.ErrorCodeOverride
@@ -135,7 +135,7 @@ func (e *InternalServerErrorException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalServerErrorException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalServerErrorException"
 	}
 	return *e.ErrorCodeOverride
@@ -162,7 +162,7 @@ func (e *NotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *NotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "NotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -189,7 +189,7 @@ func (e *PreconditionFailedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *PreconditionFailedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "PreconditionFailedException"
 	}
 	return *e.ErrorCodeOverride
@@ -216,7 +216,7 @@ func (e *ServiceUnavailableException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ServiceUnavailableException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ServiceUnavailableException"
 	}
 	return *e.ErrorCodeOverride
@@ -243,7 +243,7 @@ func (e *TooManyRequestsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TooManyRequestsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TooManyRequestsException"
 	}
 	return *e.ErrorCodeOverride
@@ -270,7 +270,7 @@ func (e *UnauthorizedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *UnauthorizedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "UnauthorizedException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/secretsmanager/types/errors.go b/service/secretsmanager/types/errors.go
index d790cd8129b..f9236760c16 100644
--- a/service/secretsmanager/types/errors.go
+++ b/service/secretsmanager/types/errors.go
@@ -27,7 +27,7 @@ func (e *DecryptionFailure) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DecryptionFailure) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DecryptionFailure"
 	}
 	return *e.ErrorCodeOverride
@@ -56,7 +56,7 @@ func (e *EncryptionFailure) ErrorMessage() string {
 	return *e.Message
 }
 func (e *EncryptionFailure) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "EncryptionFailure"
 	}
 	return *e.ErrorCodeOverride
@@ -82,7 +82,7 @@ func (e *InternalServiceError) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalServiceError) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalServiceError"
 	}
 	return *e.ErrorCodeOverride
@@ -108,7 +108,7 @@ func (e *InvalidNextTokenException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidNextTokenException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidNextTokenException"
 	}
 	return *e.ErrorCodeOverride
@@ -134,7 +134,7 @@ func (e *InvalidParameterException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidParameterException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidParameterException"
 	}
 	return *e.ErrorCodeOverride
@@ -172,7 +172,7 @@ func (e *InvalidRequestException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidRequestException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidRequestException"
 	}
 	return *e.ErrorCodeOverride
@@ -198,7 +198,7 @@ func (e *LimitExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *LimitExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "LimitExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -224,7 +224,7 @@ func (e *MalformedPolicyDocumentException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *MalformedPolicyDocumentException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "MalformedPolicyDocumentException"
 	}
 	return *e.ErrorCodeOverride
@@ -250,7 +250,7 @@ func (e *PreconditionNotMetException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *PreconditionNotMetException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "PreconditionNotMetException"
 	}
 	return *e.ErrorCodeOverride
@@ -277,7 +277,7 @@ func (e *PublicPolicyException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *PublicPolicyException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "PublicPolicyException"
 	}
 	return *e.ErrorCodeOverride
@@ -303,7 +303,7 @@ func (e *ResourceExistsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceExistsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceExistsException"
 	}
 	return *e.ErrorCodeOverride
@@ -329,7 +329,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/securityhub/types/errors.go b/service/securityhub/types/errors.go
index f77e0b270fa..a8d4cc36af1 100644
--- a/service/securityhub/types/errors.go
+++ b/service/securityhub/types/errors.go
@@ -28,7 +28,7 @@ func (e *AccessDeniedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AccessDeniedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AccessDeniedException"
 	}
 	return *e.ErrorCodeOverride
@@ -56,7 +56,7 @@ func (e *InternalException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalException"
 	}
 	return *e.ErrorCodeOverride
@@ -84,7 +84,7 @@ func (e *InvalidAccessException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidAccessException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidAccessException"
 	}
 	return *e.ErrorCodeOverride
@@ -113,7 +113,7 @@ func (e *InvalidInputException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidInputException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidInputException"
 	}
 	return *e.ErrorCodeOverride
@@ -143,7 +143,7 @@ func (e *LimitExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *LimitExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "LimitExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -171,7 +171,7 @@ func (e *ResourceConflictException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceConflictException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceConflictException"
 	}
 	return *e.ErrorCodeOverride
@@ -199,7 +199,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/securitylake/types/errors.go b/service/securitylake/types/errors.go
index a5b9fecab9f..34b7fe5c415 100644
--- a/service/securitylake/types/errors.go
+++ b/service/securitylake/types/errors.go
@@ -31,7 +31,7 @@ func (e *AccessDeniedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AccessDeniedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AccessDeniedException"
 	}
 	return *e.ErrorCodeOverride
@@ -59,7 +59,7 @@ func (e *AccountNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AccountNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AccountNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -86,7 +86,7 @@ func (e *BucketNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *BucketNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "BucketNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -112,7 +112,7 @@ func (e *ConcurrentModificationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ConcurrentModificationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ConcurrentModificationException"
 	}
 	return *e.ErrorCodeOverride
@@ -144,7 +144,7 @@ func (e *ConflictException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ConflictException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ConflictException"
 	}
 	return *e.ErrorCodeOverride
@@ -170,7 +170,7 @@ func (e *ConflictSourceNamesException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ConflictSourceNamesException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ConflictSourceNamesException"
 	}
 	return *e.ErrorCodeOverride
@@ -196,7 +196,7 @@ func (e *ConflictSubscriptionException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ConflictSubscriptionException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ConflictSubscriptionException"
 	}
 	return *e.ErrorCodeOverride
@@ -222,7 +222,7 @@ func (e *EventBridgeException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *EventBridgeException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "EventBridgeException"
 	}
 	return *e.ErrorCodeOverride
@@ -251,7 +251,7 @@ func (e *InternalServerException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalServerException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalServerException"
 	}
 	return *e.ErrorCodeOverride
@@ -278,7 +278,7 @@ func (e *InvalidInputException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidInputException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidInputException"
 	}
 	return *e.ErrorCodeOverride
@@ -307,7 +307,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -337,7 +337,7 @@ func (e *S3Exception) ErrorMessage() string {
 	return *e.Message
 }
 func (e *S3Exception) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "S3Exception"
 	}
 	return *e.ErrorCodeOverride
@@ -370,7 +370,7 @@ func (e *ServiceQuotaExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ServiceQuotaExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ServiceQuotaExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -400,7 +400,7 @@ func (e *ThrottlingException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ThrottlingException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ThrottlingException"
 	}
 	return *e.ErrorCodeOverride
@@ -429,7 +429,7 @@ func (e *ValidationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ValidationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ValidationException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/serverlessapplicationrepository/types/errors.go b/service/serverlessapplicationrepository/types/errors.go
index 81eb88ae0db..dde3b2cd45e 100644
--- a/service/serverlessapplicationrepository/types/errors.go
+++ b/service/serverlessapplicationrepository/types/errors.go
@@ -28,7 +28,7 @@ func (e *BadRequestException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *BadRequestException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "BadRequestException"
 	}
 	return *e.ErrorCodeOverride
@@ -56,7 +56,7 @@ func (e *ConflictException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ConflictException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ConflictException"
 	}
 	return *e.ErrorCodeOverride
@@ -84,7 +84,7 @@ func (e *ForbiddenException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ForbiddenException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ForbiddenException"
 	}
 	return *e.ErrorCodeOverride
@@ -112,7 +112,7 @@ func (e *InternalServerErrorException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalServerErrorException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalServerErrorException"
 	}
 	return *e.ErrorCodeOverride
@@ -141,7 +141,7 @@ func (e *NotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *NotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "NotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -169,7 +169,7 @@ func (e *TooManyRequestsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TooManyRequestsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TooManyRequestsException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/servicecatalog/types/errors.go b/service/servicecatalog/types/errors.go
index c027ec10415..483d99c636a 100644
--- a/service/servicecatalog/types/errors.go
+++ b/service/servicecatalog/types/errors.go
@@ -26,7 +26,7 @@ func (e *DuplicateResourceException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DuplicateResourceException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DuplicateResourceException"
 	}
 	return *e.ErrorCodeOverride
@@ -52,7 +52,7 @@ func (e *InvalidParametersException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidParametersException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidParametersException"
 	}
 	return *e.ErrorCodeOverride
@@ -80,7 +80,7 @@ func (e *InvalidStateException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidStateException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidStateException"
 	}
 	return *e.ErrorCodeOverride
@@ -108,7 +108,7 @@ func (e *LimitExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *LimitExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "LimitExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -134,7 +134,7 @@ func (e *OperationNotSupportedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *OperationNotSupportedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "OperationNotSupportedException"
 	}
 	return *e.ErrorCodeOverride
@@ -161,7 +161,7 @@ func (e *ResourceInUseException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceInUseException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceInUseException"
 	}
 	return *e.ErrorCodeOverride
@@ -187,7 +187,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -216,7 +216,7 @@ func (e *TagOptionNotMigratedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TagOptionNotMigratedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TagOptionNotMigratedException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/servicecatalogappregistry/types/errors.go b/service/servicecatalogappregistry/types/errors.go
index 38f2f3936d3..574969484a7 100644
--- a/service/servicecatalogappregistry/types/errors.go
+++ b/service/servicecatalogappregistry/types/errors.go
@@ -27,7 +27,7 @@ func (e *ConflictException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ConflictException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ConflictException"
 	}
 	return *e.ErrorCodeOverride
@@ -53,7 +53,7 @@ func (e *InternalServerException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalServerException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalServerException"
 	}
 	return *e.ErrorCodeOverride
@@ -79,7 +79,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -105,7 +105,7 @@ func (e *ServiceQuotaExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ServiceQuotaExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ServiceQuotaExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -131,7 +131,7 @@ func (e *ValidationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ValidationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ValidationException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/servicediscovery/types/errors.go b/service/servicediscovery/types/errors.go
index 733621012db..511efc6d6cd 100644
--- a/service/servicediscovery/types/errors.go
+++ b/service/servicediscovery/types/errors.go
@@ -27,7 +27,7 @@ func (e *CustomHealthNotFound) ErrorMessage() string {
 	return *e.Message
 }
 func (e *CustomHealthNotFound) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "CustomHealthNotFound"
 	}
 	return *e.ErrorCodeOverride
@@ -55,7 +55,7 @@ func (e *DuplicateRequest) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DuplicateRequest) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DuplicateRequest"
 	}
 	return *e.ErrorCodeOverride
@@ -82,7 +82,7 @@ func (e *InstanceNotFound) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InstanceNotFound) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InstanceNotFound"
 	}
 	return *e.ErrorCodeOverride
@@ -110,7 +110,7 @@ func (e *InvalidInput) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidInput) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidInput"
 	}
 	return *e.ErrorCodeOverride
@@ -139,7 +139,7 @@ func (e *NamespaceAlreadyExists) ErrorMessage() string {
 	return *e.Message
 }
 func (e *NamespaceAlreadyExists) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "NamespaceAlreadyExists"
 	}
 	return *e.ErrorCodeOverride
@@ -165,7 +165,7 @@ func (e *NamespaceNotFound) ErrorMessage() string {
 	return *e.Message
 }
 func (e *NamespaceNotFound) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "NamespaceNotFound"
 	}
 	return *e.ErrorCodeOverride
@@ -191,7 +191,7 @@ func (e *OperationNotFound) ErrorMessage() string {
 	return *e.Message
 }
 func (e *OperationNotFound) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "OperationNotFound"
 	}
 	return *e.ErrorCodeOverride
@@ -220,7 +220,7 @@ func (e *RequestLimitExceeded) ErrorMessage() string {
 	return *e.Message
 }
 func (e *RequestLimitExceeded) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "RequestLimitExceeded"
 	}
 	return *e.ErrorCodeOverride
@@ -247,7 +247,7 @@ func (e *ResourceInUse) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceInUse) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceInUse"
 	}
 	return *e.ErrorCodeOverride
@@ -274,7 +274,7 @@ func (e *ResourceLimitExceeded) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceLimitExceeded) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceLimitExceeded"
 	}
 	return *e.ErrorCodeOverride
@@ -300,7 +300,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -330,7 +330,7 @@ func (e *ServiceAlreadyExists) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ServiceAlreadyExists) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ServiceAlreadyExists"
 	}
 	return *e.ErrorCodeOverride
@@ -356,7 +356,7 @@ func (e *ServiceNotFound) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ServiceNotFound) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ServiceNotFound"
 	}
 	return *e.ErrorCodeOverride
@@ -385,7 +385,7 @@ func (e *TooManyTagsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TooManyTagsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TooManyTagsException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/servicequotas/types/errors.go b/service/servicequotas/types/errors.go
index 8e809e9d634..cc80c77bad1 100644
--- a/service/servicequotas/types/errors.go
+++ b/service/servicequotas/types/errors.go
@@ -26,7 +26,7 @@ func (e *AccessDeniedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AccessDeniedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AccessDeniedException"
 	}
 	return *e.ErrorCodeOverride
@@ -53,7 +53,7 @@ func (e *AWSServiceAccessNotEnabledException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AWSServiceAccessNotEnabledException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AWSServiceAccessNotEnabledException"
 	}
 	return *e.ErrorCodeOverride
@@ -81,7 +81,7 @@ func (e *DependencyAccessDeniedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DependencyAccessDeniedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DependencyAccessDeniedException"
 	}
 	return *e.ErrorCodeOverride
@@ -107,7 +107,7 @@ func (e *IllegalArgumentException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *IllegalArgumentException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "IllegalArgumentException"
 	}
 	return *e.ErrorCodeOverride
@@ -133,7 +133,7 @@ func (e *InvalidPaginationTokenException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidPaginationTokenException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidPaginationTokenException"
 	}
 	return *e.ErrorCodeOverride
@@ -159,7 +159,7 @@ func (e *InvalidResourceStateException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidResourceStateException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidResourceStateException"
 	}
 	return *e.ErrorCodeOverride
@@ -185,7 +185,7 @@ func (e *NoAvailableOrganizationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *NoAvailableOrganizationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "NoAvailableOrganizationException"
 	}
 	return *e.ErrorCodeOverride
@@ -211,7 +211,7 @@ func (e *NoSuchResourceException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *NoSuchResourceException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "NoSuchResourceException"
 	}
 	return *e.ErrorCodeOverride
@@ -237,7 +237,7 @@ func (e *OrganizationNotInAllFeaturesModeException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *OrganizationNotInAllFeaturesModeException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "OrganizationNotInAllFeaturesModeException"
 	}
 	return *e.ErrorCodeOverride
@@ -267,7 +267,7 @@ func (e *QuotaExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *QuotaExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "QuotaExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -293,7 +293,7 @@ func (e *ResourceAlreadyExistsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceAlreadyExistsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceAlreadyExistsException"
 	}
 	return *e.ErrorCodeOverride
@@ -319,7 +319,7 @@ func (e *ServiceException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ServiceException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ServiceException"
 	}
 	return *e.ErrorCodeOverride
@@ -345,7 +345,7 @@ func (e *ServiceQuotaTemplateNotInUseException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ServiceQuotaTemplateNotInUseException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ServiceQuotaTemplateNotInUseException"
 	}
 	return *e.ErrorCodeOverride
@@ -373,7 +373,7 @@ func (e *TagPolicyViolationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TagPolicyViolationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TagPolicyViolationException"
 	}
 	return *e.ErrorCodeOverride
@@ -399,7 +399,7 @@ func (e *TemplatesNotAvailableInRegionException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TemplatesNotAvailableInRegionException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TemplatesNotAvailableInRegionException"
 	}
 	return *e.ErrorCodeOverride
@@ -428,7 +428,7 @@ func (e *TooManyRequestsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TooManyRequestsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TooManyRequestsException"
 	}
 	return *e.ErrorCodeOverride
@@ -457,7 +457,7 @@ func (e *TooManyTagsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TooManyTagsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TooManyTagsException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/ses/types/errors.go b/service/ses/types/errors.go
index b80a87d9db5..a4b318a6581 100644
--- a/service/ses/types/errors.go
+++ b/service/ses/types/errors.go
@@ -28,7 +28,7 @@ func (e *AccountSendingPausedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AccountSendingPausedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AccountSendingPausedException"
 	}
 	return *e.ErrorCodeOverride
@@ -56,7 +56,7 @@ func (e *AlreadyExistsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AlreadyExistsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AlreadyExists"
 	}
 	return *e.ErrorCodeOverride
@@ -84,7 +84,7 @@ func (e *CannotDeleteException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *CannotDeleteException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "CannotDelete"
 	}
 	return *e.ErrorCodeOverride
@@ -113,7 +113,7 @@ func (e *ConfigurationSetAlreadyExistsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ConfigurationSetAlreadyExistsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ConfigurationSetAlreadyExists"
 	}
 	return *e.ErrorCodeOverride
@@ -143,7 +143,7 @@ func (e *ConfigurationSetDoesNotExistException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ConfigurationSetDoesNotExistException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ConfigurationSetDoesNotExist"
 	}
 	return *e.ErrorCodeOverride
@@ -175,7 +175,7 @@ func (e *ConfigurationSetSendingPausedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ConfigurationSetSendingPausedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ConfigurationSetSendingPausedException"
 	}
 	return *e.ErrorCodeOverride
@@ -203,7 +203,7 @@ func (e *CustomVerificationEmailInvalidContentException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *CustomVerificationEmailInvalidContentException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "CustomVerificationEmailInvalidContent"
 	}
 	return *e.ErrorCodeOverride
@@ -234,7 +234,7 @@ func (e *CustomVerificationEmailTemplateAlreadyExistsException) ErrorMessage() s
 	return *e.Message
 }
 func (e *CustomVerificationEmailTemplateAlreadyExistsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "CustomVerificationEmailTemplateAlreadyExists"
 	}
 	return *e.ErrorCodeOverride
@@ -265,7 +265,7 @@ func (e *CustomVerificationEmailTemplateDoesNotExistException) ErrorMessage() st
 	return *e.Message
 }
 func (e *CustomVerificationEmailTemplateDoesNotExistException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "CustomVerificationEmailTemplateDoesNotExist"
 	}
 	return *e.ErrorCodeOverride
@@ -297,7 +297,7 @@ func (e *EventDestinationAlreadyExistsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *EventDestinationAlreadyExistsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "EventDestinationAlreadyExists"
 	}
 	return *e.ErrorCodeOverride
@@ -328,7 +328,7 @@ func (e *EventDestinationDoesNotExistException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *EventDestinationDoesNotExistException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "EventDestinationDoesNotExist"
 	}
 	return *e.ErrorCodeOverride
@@ -360,7 +360,7 @@ func (e *FromEmailAddressNotVerifiedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *FromEmailAddressNotVerifiedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "FromEmailAddressNotVerified"
 	}
 	return *e.ErrorCodeOverride
@@ -392,7 +392,7 @@ func (e *InvalidCloudWatchDestinationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidCloudWatchDestinationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidCloudWatchDestination"
 	}
 	return *e.ErrorCodeOverride
@@ -421,7 +421,7 @@ func (e *InvalidConfigurationSetException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidConfigurationSetException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidConfigurationSet"
 	}
 	return *e.ErrorCodeOverride
@@ -447,7 +447,7 @@ func (e *InvalidDeliveryOptionsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidDeliveryOptionsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidDeliveryOptions"
 	}
 	return *e.ErrorCodeOverride
@@ -477,7 +477,7 @@ func (e *InvalidFirehoseDestinationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidFirehoseDestinationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidFirehoseDestination"
 	}
 	return *e.ErrorCodeOverride
@@ -510,7 +510,7 @@ func (e *InvalidLambdaFunctionException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidLambdaFunctionException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidLambdaFunction"
 	}
 	return *e.ErrorCodeOverride
@@ -537,7 +537,7 @@ func (e *InvalidPolicyException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidPolicyException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidPolicy"
 	}
 	return *e.ErrorCodeOverride
@@ -566,7 +566,7 @@ func (e *InvalidRenderingParameterException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidRenderingParameterException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidRenderingParameter"
 	}
 	return *e.ErrorCodeOverride
@@ -600,7 +600,7 @@ func (e *InvalidS3ConfigurationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidS3ConfigurationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidS3Configuration"
 	}
 	return *e.ErrorCodeOverride
@@ -630,7 +630,7 @@ func (e *InvalidSNSDestinationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidSNSDestinationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidSNSDestination"
 	}
 	return *e.ErrorCodeOverride
@@ -661,7 +661,7 @@ func (e *InvalidSnsTopicException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidSnsTopicException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidSnsTopic"
 	}
 	return *e.ErrorCodeOverride
@@ -690,7 +690,7 @@ func (e *InvalidTemplateException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidTemplateException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidTemplate"
 	}
 	return *e.ErrorCodeOverride
@@ -724,7 +724,7 @@ func (e *InvalidTrackingOptionsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidTrackingOptionsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidTrackingOptions"
 	}
 	return *e.ErrorCodeOverride
@@ -752,7 +752,7 @@ func (e *LimitExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *LimitExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "LimitExceeded"
 	}
 	return *e.ErrorCodeOverride
@@ -782,7 +782,7 @@ func (e *MailFromDomainNotVerifiedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *MailFromDomainNotVerifiedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "MailFromDomainNotVerifiedException"
 	}
 	return *e.ErrorCodeOverride
@@ -811,7 +811,7 @@ func (e *MessageRejected) ErrorMessage() string {
 	return *e.Message
 }
 func (e *MessageRejected) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "MessageRejected"
 	}
 	return *e.ErrorCodeOverride
@@ -841,7 +841,7 @@ func (e *MissingRenderingAttributeException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *MissingRenderingAttributeException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "MissingRenderingAttribute"
 	}
 	return *e.ErrorCodeOverride
@@ -869,7 +869,7 @@ func (e *ProductionAccessNotGrantedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ProductionAccessNotGrantedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ProductionAccessNotGranted"
 	}
 	return *e.ErrorCodeOverride
@@ -899,7 +899,7 @@ func (e *RuleDoesNotExistException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *RuleDoesNotExistException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "RuleDoesNotExist"
 	}
 	return *e.ErrorCodeOverride
@@ -927,7 +927,7 @@ func (e *RuleSetDoesNotExistException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *RuleSetDoesNotExistException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "RuleSetDoesNotExist"
 	}
 	return *e.ErrorCodeOverride
@@ -956,7 +956,7 @@ func (e *TemplateDoesNotExistException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TemplateDoesNotExistException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TemplateDoesNotExist"
 	}
 	return *e.ErrorCodeOverride
@@ -985,7 +985,7 @@ func (e *TrackingOptionsAlreadyExistsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TrackingOptionsAlreadyExistsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TrackingOptionsAlreadyExistsException"
 	}
 	return *e.ErrorCodeOverride
@@ -1015,7 +1015,7 @@ func (e *TrackingOptionsDoesNotExistException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TrackingOptionsDoesNotExistException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TrackingOptionsDoesNotExistException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/sesv2/types/errors.go b/service/sesv2/types/errors.go
index c41f6cfbac0..448cc6908d3 100644
--- a/service/sesv2/types/errors.go
+++ b/service/sesv2/types/errors.go
@@ -27,7 +27,7 @@ func (e *AccountSuspendedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AccountSuspendedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AccountSuspendedException"
 	}
 	return *e.ErrorCodeOverride
@@ -53,7 +53,7 @@ func (e *AlreadyExistsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AlreadyExistsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AlreadyExistsException"
 	}
 	return *e.ErrorCodeOverride
@@ -79,7 +79,7 @@ func (e *BadRequestException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *BadRequestException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "BadRequestException"
 	}
 	return *e.ErrorCodeOverride
@@ -105,7 +105,7 @@ func (e *ConcurrentModificationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ConcurrentModificationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ConcurrentModificationException"
 	}
 	return *e.ErrorCodeOverride
@@ -131,7 +131,7 @@ func (e *ConflictException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ConflictException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ConflictException"
 	}
 	return *e.ErrorCodeOverride
@@ -158,7 +158,7 @@ func (e *InternalServiceErrorException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalServiceErrorException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalServiceErrorException"
 	}
 	return *e.ErrorCodeOverride
@@ -184,7 +184,7 @@ func (e *InvalidNextTokenException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidNextTokenException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidNextTokenException"
 	}
 	return *e.ErrorCodeOverride
@@ -210,7 +210,7 @@ func (e *LimitExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *LimitExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "LimitExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -236,7 +236,7 @@ func (e *MailFromDomainNotVerifiedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *MailFromDomainNotVerifiedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "MailFromDomainNotVerifiedException"
 	}
 	return *e.ErrorCodeOverride
@@ -264,7 +264,7 @@ func (e *MessageRejected) ErrorMessage() string {
 	return *e.Message
 }
 func (e *MessageRejected) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "MessageRejected"
 	}
 	return *e.ErrorCodeOverride
@@ -290,7 +290,7 @@ func (e *NotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *NotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "NotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -317,7 +317,7 @@ func (e *SendingPausedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *SendingPausedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "SendingPausedException"
 	}
 	return *e.ErrorCodeOverride
@@ -343,7 +343,7 @@ func (e *TooManyRequestsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TooManyRequestsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TooManyRequestsException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/sfn/types/errors.go b/service/sfn/types/errors.go
index ac953c31515..7b79a588aad 100644
--- a/service/sfn/types/errors.go
+++ b/service/sfn/types/errors.go
@@ -26,7 +26,7 @@ func (e *ActivityDoesNotExist) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ActivityDoesNotExist) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ActivityDoesNotExist"
 	}
 	return *e.ErrorCodeOverride
@@ -53,7 +53,7 @@ func (e *ActivityLimitExceeded) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ActivityLimitExceeded) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ActivityLimitExceeded"
 	}
 	return *e.ErrorCodeOverride
@@ -80,7 +80,7 @@ func (e *ActivityWorkerLimitExceeded) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ActivityWorkerLimitExceeded) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ActivityWorkerLimitExceeded"
 	}
 	return *e.ErrorCodeOverride
@@ -107,7 +107,7 @@ func (e *ExecutionAlreadyExists) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ExecutionAlreadyExists) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ExecutionAlreadyExists"
 	}
 	return *e.ErrorCodeOverride
@@ -133,7 +133,7 @@ func (e *ExecutionDoesNotExist) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ExecutionDoesNotExist) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ExecutionDoesNotExist"
 	}
 	return *e.ErrorCodeOverride
@@ -160,7 +160,7 @@ func (e *ExecutionLimitExceeded) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ExecutionLimitExceeded) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ExecutionLimitExceeded"
 	}
 	return *e.ErrorCodeOverride
@@ -186,7 +186,7 @@ func (e *InvalidArn) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidArn) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidArn"
 	}
 	return *e.ErrorCodeOverride
@@ -212,7 +212,7 @@ func (e *InvalidDefinition) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidDefinition) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidDefinition"
 	}
 	return *e.ErrorCodeOverride
@@ -238,7 +238,7 @@ func (e *InvalidExecutionInput) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidExecutionInput) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidExecutionInput"
 	}
 	return *e.ErrorCodeOverride
@@ -263,7 +263,7 @@ func (e *InvalidLoggingConfiguration) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidLoggingConfiguration) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidLoggingConfiguration"
 	}
 	return *e.ErrorCodeOverride
@@ -289,7 +289,7 @@ func (e *InvalidName) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidName) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidName"
 	}
 	return *e.ErrorCodeOverride
@@ -315,7 +315,7 @@ func (e *InvalidOutput) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidOutput) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidOutput"
 	}
 	return *e.ErrorCodeOverride
@@ -341,7 +341,7 @@ func (e *InvalidToken) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidToken) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidToken"
 	}
 	return *e.ErrorCodeOverride
@@ -368,7 +368,7 @@ func (e *InvalidTracingConfiguration) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidTracingConfiguration) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidTracingConfiguration"
 	}
 	return *e.ErrorCodeOverride
@@ -395,7 +395,7 @@ func (e *MissingRequiredParameter) ErrorMessage() string {
 	return *e.Message
 }
 func (e *MissingRequiredParameter) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "MissingRequiredParameter"
 	}
 	return *e.ErrorCodeOverride
@@ -424,7 +424,7 @@ func (e *ResourceNotFound) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFound) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFound"
 	}
 	return *e.ErrorCodeOverride
@@ -451,7 +451,7 @@ func (e *StateMachineAlreadyExists) ErrorMessage() string {
 	return *e.Message
 }
 func (e *StateMachineAlreadyExists) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "StateMachineAlreadyExists"
 	}
 	return *e.ErrorCodeOverride
@@ -477,7 +477,7 @@ func (e *StateMachineDeleting) ErrorMessage() string {
 	return *e.Message
 }
 func (e *StateMachineDeleting) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "StateMachineDeleting"
 	}
 	return *e.ErrorCodeOverride
@@ -503,7 +503,7 @@ func (e *StateMachineDoesNotExist) ErrorMessage() string {
 	return *e.Message
 }
 func (e *StateMachineDoesNotExist) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "StateMachineDoesNotExist"
 	}
 	return *e.ErrorCodeOverride
@@ -530,7 +530,7 @@ func (e *StateMachineLimitExceeded) ErrorMessage() string {
 	return *e.Message
 }
 func (e *StateMachineLimitExceeded) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "StateMachineLimitExceeded"
 	}
 	return *e.ErrorCodeOverride
@@ -555,7 +555,7 @@ func (e *StateMachineTypeNotSupported) ErrorMessage() string {
 	return *e.Message
 }
 func (e *StateMachineTypeNotSupported) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "StateMachineTypeNotSupported"
 	}
 	return *e.ErrorCodeOverride
@@ -580,7 +580,7 @@ func (e *TaskDoesNotExist) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TaskDoesNotExist) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TaskDoesNotExist"
 	}
 	return *e.ErrorCodeOverride
@@ -605,7 +605,7 @@ func (e *TaskTimedOut) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TaskTimedOut) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TaskTimedOut"
 	}
 	return *e.ErrorCodeOverride
@@ -635,7 +635,7 @@ func (e *TooManyTags) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TooManyTags) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TooManyTags"
 	}
 	return *e.ErrorCodeOverride
@@ -664,7 +664,7 @@ func (e *ValidationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ValidationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ValidationException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/shield/types/errors.go b/service/shield/types/errors.go
index bbbcd2c6f20..26d993b4f0e 100644
--- a/service/shield/types/errors.go
+++ b/service/shield/types/errors.go
@@ -27,7 +27,7 @@ func (e *AccessDeniedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AccessDeniedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AccessDeniedException"
 	}
 	return *e.ErrorCodeOverride
@@ -58,7 +58,7 @@ func (e *AccessDeniedForDependencyException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AccessDeniedForDependencyException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AccessDeniedForDependencyException"
 	}
 	return *e.ErrorCodeOverride
@@ -87,7 +87,7 @@ func (e *InternalErrorException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalErrorException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalErrorException"
 	}
 	return *e.ErrorCodeOverride
@@ -113,7 +113,7 @@ func (e *InvalidOperationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidOperationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidOperationException"
 	}
 	return *e.ErrorCodeOverride
@@ -141,7 +141,7 @@ func (e *InvalidPaginationTokenException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidPaginationTokenException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidPaginationTokenException"
 	}
 	return *e.ErrorCodeOverride
@@ -171,7 +171,7 @@ func (e *InvalidParameterException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidParameterException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidParameterException"
 	}
 	return *e.ErrorCodeOverride
@@ -198,7 +198,7 @@ func (e *InvalidResourceException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidResourceException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidResourceException"
 	}
 	return *e.ErrorCodeOverride
@@ -227,7 +227,7 @@ func (e *LimitsExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *LimitsExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "LimitsExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -256,7 +256,7 @@ func (e *LockedSubscriptionException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *LockedSubscriptionException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "LockedSubscriptionException"
 	}
 	return *e.ErrorCodeOverride
@@ -282,7 +282,7 @@ func (e *NoAssociatedRoleException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *NoAssociatedRoleException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "NoAssociatedRoleException"
 	}
 	return *e.ErrorCodeOverride
@@ -309,7 +309,7 @@ func (e *OptimisticLockException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *OptimisticLockException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "OptimisticLockException"
 	}
 	return *e.ErrorCodeOverride
@@ -338,7 +338,7 @@ func (e *ResourceAlreadyExistsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceAlreadyExistsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceAlreadyExistsException"
 	}
 	return *e.ErrorCodeOverride
@@ -367,7 +367,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/signer/types/errors.go b/service/signer/types/errors.go
index 4e8cfedf87b..a390a919b0a 100644
--- a/service/signer/types/errors.go
+++ b/service/signer/types/errors.go
@@ -28,7 +28,7 @@ func (e *AccessDeniedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AccessDeniedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AccessDeniedException"
 	}
 	return *e.ErrorCodeOverride
@@ -57,7 +57,7 @@ func (e *BadRequestException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *BadRequestException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "BadRequestException"
 	}
 	return *e.ErrorCodeOverride
@@ -85,7 +85,7 @@ func (e *ConflictException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ConflictException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ConflictException"
 	}
 	return *e.ErrorCodeOverride
@@ -113,7 +113,7 @@ func (e *InternalServiceErrorException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalServiceErrorException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalServiceErrorException"
 	}
 	return *e.ErrorCodeOverride
@@ -141,7 +141,7 @@ func (e *NotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *NotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "NotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -169,7 +169,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -197,7 +197,7 @@ func (e *ServiceLimitExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ServiceLimitExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ServiceLimitExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -226,7 +226,7 @@ func (e *ThrottlingException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ThrottlingException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ThrottlingException"
 	}
 	return *e.ErrorCodeOverride
@@ -255,7 +255,7 @@ func (e *TooManyRequestsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TooManyRequestsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TooManyRequestsException"
 	}
 	return *e.ErrorCodeOverride
@@ -283,7 +283,7 @@ func (e *ValidationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ValidationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ValidationException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/simspaceweaver/types/errors.go b/service/simspaceweaver/types/errors.go
index c7de2e4f5de..9125f7f1333 100644
--- a/service/simspaceweaver/types/errors.go
+++ b/service/simspaceweaver/types/errors.go
@@ -25,7 +25,7 @@ func (e *AccessDeniedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AccessDeniedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AccessDeniedException"
 	}
 	return *e.ErrorCodeOverride
@@ -50,7 +50,7 @@ func (e *ConflictException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ConflictException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ConflictException"
 	}
 	return *e.ErrorCodeOverride
@@ -75,7 +75,7 @@ func (e *InternalServerException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalServerException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalServerException"
 	}
 	return *e.ErrorCodeOverride
@@ -100,7 +100,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -125,7 +125,7 @@ func (e *ServiceQuotaExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ServiceQuotaExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ServiceQuotaExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -150,7 +150,7 @@ func (e *TooManyTagsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TooManyTagsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TooManyTagsException"
 	}
 	return *e.ErrorCodeOverride
@@ -175,7 +175,7 @@ func (e *ValidationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ValidationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ValidationException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/sms/types/errors.go b/service/sms/types/errors.go
index 7f9fe7a9717..3dd2c351932 100644
--- a/service/sms/types/errors.go
+++ b/service/sms/types/errors.go
@@ -27,7 +27,7 @@ func (e *DryRunOperationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DryRunOperationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DryRunOperationException"
 	}
 	return *e.ErrorCodeOverride
@@ -53,7 +53,7 @@ func (e *InternalError) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalError) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalError"
 	}
 	return *e.ErrorCodeOverride
@@ -79,7 +79,7 @@ func (e *InvalidParameterException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidParameterException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidParameterException"
 	}
 	return *e.ErrorCodeOverride
@@ -105,7 +105,7 @@ func (e *MissingRequiredParameterException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *MissingRequiredParameterException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "MissingRequiredParameterException"
 	}
 	return *e.ErrorCodeOverride
@@ -131,7 +131,7 @@ func (e *NoConnectorsAvailableException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *NoConnectorsAvailableException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "NoConnectorsAvailableException"
 	}
 	return *e.ErrorCodeOverride
@@ -157,7 +157,7 @@ func (e *OperationNotPermittedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *OperationNotPermittedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "OperationNotPermittedException"
 	}
 	return *e.ErrorCodeOverride
@@ -183,7 +183,7 @@ func (e *ReplicationJobAlreadyExistsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ReplicationJobAlreadyExistsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ReplicationJobAlreadyExistsException"
 	}
 	return *e.ErrorCodeOverride
@@ -211,7 +211,7 @@ func (e *ReplicationJobNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ReplicationJobNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ReplicationJobNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -238,7 +238,7 @@ func (e *ReplicationRunLimitExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ReplicationRunLimitExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ReplicationRunLimitExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -266,7 +266,7 @@ func (e *ServerCannotBeReplicatedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ServerCannotBeReplicatedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ServerCannotBeReplicatedException"
 	}
 	return *e.ErrorCodeOverride
@@ -292,7 +292,7 @@ func (e *TemporarilyUnavailableException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TemporarilyUnavailableException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TemporarilyUnavailableException"
 	}
 	return *e.ErrorCodeOverride
@@ -319,7 +319,7 @@ func (e *UnauthorizedOperationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *UnauthorizedOperationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "UnauthorizedOperationException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/snowball/types/errors.go b/service/snowball/types/errors.go
index 76f2646a362..b61cf32589b 100644
--- a/service/snowball/types/errors.go
+++ b/service/snowball/types/errors.go
@@ -28,7 +28,7 @@ func (e *ClusterLimitExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ClusterLimitExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ClusterLimitExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -57,7 +57,7 @@ func (e *ConflictException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ConflictException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ConflictException"
 	}
 	return *e.ErrorCodeOverride
@@ -84,7 +84,7 @@ func (e *Ec2RequestFailedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *Ec2RequestFailedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "Ec2RequestFailedException"
 	}
 	return *e.ErrorCodeOverride
@@ -111,7 +111,7 @@ func (e *InvalidAddressException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidAddressException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidAddressException"
 	}
 	return *e.ErrorCodeOverride
@@ -139,7 +139,7 @@ func (e *InvalidInputCombinationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidInputCombinationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidInputCombinationException"
 	}
 	return *e.ErrorCodeOverride
@@ -166,7 +166,7 @@ func (e *InvalidJobStateException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidJobStateException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidJobStateException"
 	}
 	return *e.ErrorCodeOverride
@@ -193,7 +193,7 @@ func (e *InvalidNextTokenException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidNextTokenException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidNextTokenException"
 	}
 	return *e.ErrorCodeOverride
@@ -222,7 +222,7 @@ func (e *InvalidResourceException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidResourceException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidResourceException"
 	}
 	return *e.ErrorCodeOverride
@@ -249,7 +249,7 @@ func (e *KMSRequestFailedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *KMSRequestFailedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "KMSRequestFailedException"
 	}
 	return *e.ErrorCodeOverride
@@ -277,7 +277,7 @@ func (e *ReturnShippingLabelAlreadyExistsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ReturnShippingLabelAlreadyExistsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ReturnShippingLabelAlreadyExistsException"
 	}
 	return *e.ErrorCodeOverride
@@ -307,7 +307,7 @@ func (e *UnsupportedAddressException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *UnsupportedAddressException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "UnsupportedAddressException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/snowdevicemanagement/types/errors.go b/service/snowdevicemanagement/types/errors.go
index ee772c7ac02..18a8df7da3f 100644
--- a/service/snowdevicemanagement/types/errors.go
+++ b/service/snowdevicemanagement/types/errors.go
@@ -26,7 +26,7 @@ func (e *AccessDeniedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AccessDeniedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AccessDeniedException"
 	}
 	return *e.ErrorCodeOverride
@@ -52,7 +52,7 @@ func (e *InternalServerException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalServerException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalServerException"
 	}
 	return *e.ErrorCodeOverride
@@ -78,7 +78,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -104,7 +104,7 @@ func (e *ServiceQuotaExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ServiceQuotaExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ServiceQuotaExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -130,7 +130,7 @@ func (e *ThrottlingException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ThrottlingException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ThrottlingException"
 	}
 	return *e.ErrorCodeOverride
@@ -157,7 +157,7 @@ func (e *ValidationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ValidationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ValidationException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/sns/types/errors.go b/service/sns/types/errors.go
index 8bda7bd6864..6fd885edec0 100644
--- a/service/sns/types/errors.go
+++ b/service/sns/types/errors.go
@@ -26,7 +26,7 @@ func (e *AuthorizationErrorException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AuthorizationErrorException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AuthorizationError"
 	}
 	return *e.ErrorCodeOverride
@@ -52,7 +52,7 @@ func (e *BatchEntryIdsNotDistinctException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *BatchEntryIdsNotDistinctException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "BatchEntryIdsNotDistinct"
 	}
 	return *e.ErrorCodeOverride
@@ -78,7 +78,7 @@ func (e *BatchRequestTooLongException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *BatchRequestTooLongException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "BatchRequestTooLong"
 	}
 	return *e.ErrorCodeOverride
@@ -105,7 +105,7 @@ func (e *ConcurrentAccessException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ConcurrentAccessException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ConcurrentAccess"
 	}
 	return *e.ErrorCodeOverride
@@ -131,7 +131,7 @@ func (e *EmptyBatchRequestException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *EmptyBatchRequestException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "EmptyBatchRequest"
 	}
 	return *e.ErrorCodeOverride
@@ -157,7 +157,7 @@ func (e *EndpointDisabledException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *EndpointDisabledException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "EndpointDisabled"
 	}
 	return *e.ErrorCodeOverride
@@ -185,7 +185,7 @@ func (e *FilterPolicyLimitExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *FilterPolicyLimitExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "FilterPolicyLimitExceeded"
 	}
 	return *e.ErrorCodeOverride
@@ -213,7 +213,7 @@ func (e *InternalErrorException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalErrorException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalError"
 	}
 	return *e.ErrorCodeOverride
@@ -239,7 +239,7 @@ func (e *InvalidBatchEntryIdException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidBatchEntryIdException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidBatchEntryId"
 	}
 	return *e.ErrorCodeOverride
@@ -266,7 +266,7 @@ func (e *InvalidParameterException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidParameterException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidParameter"
 	}
 	return *e.ErrorCodeOverride
@@ -293,7 +293,7 @@ func (e *InvalidParameterValueException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidParameterValueException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ParameterValueInvalid"
 	}
 	return *e.ErrorCodeOverride
@@ -320,7 +320,7 @@ func (e *InvalidSecurityException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidSecurityException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidSecurity"
 	}
 	return *e.ErrorCodeOverride
@@ -347,7 +347,7 @@ func (e *KMSAccessDeniedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *KMSAccessDeniedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "KMSAccessDenied"
 	}
 	return *e.ErrorCodeOverride
@@ -374,7 +374,7 @@ func (e *KMSDisabledException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *KMSDisabledException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "KMSDisabled"
 	}
 	return *e.ErrorCodeOverride
@@ -404,7 +404,7 @@ func (e *KMSInvalidStateException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *KMSInvalidStateException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "KMSInvalidState"
 	}
 	return *e.ErrorCodeOverride
@@ -431,7 +431,7 @@ func (e *KMSNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *KMSNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "KMSNotFound"
 	}
 	return *e.ErrorCodeOverride
@@ -457,7 +457,7 @@ func (e *KMSOptInRequired) ErrorMessage() string {
 	return *e.Message
 }
 func (e *KMSOptInRequired) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "KMSOptInRequired"
 	}
 	return *e.ErrorCodeOverride
@@ -486,7 +486,7 @@ func (e *KMSThrottlingException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *KMSThrottlingException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "KMSThrottling"
 	}
 	return *e.ErrorCodeOverride
@@ -512,7 +512,7 @@ func (e *NotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *NotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "NotFound"
 	}
 	return *e.ErrorCodeOverride
@@ -540,7 +540,7 @@ func (e *OptedOutException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *OptedOutException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "OptedOut"
 	}
 	return *e.ErrorCodeOverride
@@ -566,7 +566,7 @@ func (e *PlatformApplicationDisabledException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *PlatformApplicationDisabledException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "PlatformApplicationDisabled"
 	}
 	return *e.ErrorCodeOverride
@@ -595,7 +595,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFound"
 	}
 	return *e.ErrorCodeOverride
@@ -622,7 +622,7 @@ func (e *StaleTagException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *StaleTagException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "StaleTag"
 	}
 	return *e.ErrorCodeOverride
@@ -649,7 +649,7 @@ func (e *SubscriptionLimitExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *SubscriptionLimitExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "SubscriptionLimitExceeded"
 	}
 	return *e.ErrorCodeOverride
@@ -677,7 +677,7 @@ func (e *TagLimitExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TagLimitExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TagLimitExceeded"
 	}
 	return *e.ErrorCodeOverride
@@ -704,7 +704,7 @@ func (e *TagPolicyException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TagPolicyException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TagPolicy"
 	}
 	return *e.ErrorCodeOverride
@@ -731,7 +731,7 @@ func (e *ThrottledException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ThrottledException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "Throttled"
 	}
 	return *e.ErrorCodeOverride
@@ -757,7 +757,7 @@ func (e *TooManyEntriesInBatchRequestException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TooManyEntriesInBatchRequestException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TooManyEntriesInBatchRequest"
 	}
 	return *e.ErrorCodeOverride
@@ -785,7 +785,7 @@ func (e *TopicLimitExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TopicLimitExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TopicLimitExceeded"
 	}
 	return *e.ErrorCodeOverride
@@ -812,7 +812,7 @@ func (e *UserErrorException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *UserErrorException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "UserError"
 	}
 	return *e.ErrorCodeOverride
@@ -838,7 +838,7 @@ func (e *ValidationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ValidationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ValidationException"
 	}
 	return *e.ErrorCodeOverride
@@ -866,7 +866,7 @@ func (e *VerificationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *VerificationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "VerificationException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/sqs/types/errors.go b/service/sqs/types/errors.go
index 37c897e788b..0671b155afb 100644
--- a/service/sqs/types/errors.go
+++ b/service/sqs/types/errors.go
@@ -26,7 +26,7 @@ func (e *BatchEntryIdsNotDistinct) ErrorMessage() string {
 	return *e.Message
 }
 func (e *BatchEntryIdsNotDistinct) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AWS.SimpleQueueService.BatchEntryIdsNotDistinct"
 	}
 	return *e.ErrorCodeOverride
@@ -52,7 +52,7 @@ func (e *BatchRequestTooLong) ErrorMessage() string {
 	return *e.Message
 }
 func (e *BatchRequestTooLong) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AWS.SimpleQueueService.BatchRequestTooLong"
 	}
 	return *e.ErrorCodeOverride
@@ -78,7 +78,7 @@ func (e *EmptyBatchRequest) ErrorMessage() string {
 	return *e.Message
 }
 func (e *EmptyBatchRequest) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AWS.SimpleQueueService.EmptyBatchRequest"
 	}
 	return *e.ErrorCodeOverride
@@ -104,7 +104,7 @@ func (e *InvalidAttributeName) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidAttributeName) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidAttributeName"
 	}
 	return *e.ErrorCodeOverride
@@ -130,7 +130,7 @@ func (e *InvalidBatchEntryId) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidBatchEntryId) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AWS.SimpleQueueService.InvalidBatchEntryId"
 	}
 	return *e.ErrorCodeOverride
@@ -156,7 +156,7 @@ func (e *InvalidIdFormat) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidIdFormat) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidIdFormat"
 	}
 	return *e.ErrorCodeOverride
@@ -182,7 +182,7 @@ func (e *InvalidMessageContents) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidMessageContents) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidMessageContents"
 	}
 	return *e.ErrorCodeOverride
@@ -208,7 +208,7 @@ func (e *MessageNotInflight) ErrorMessage() string {
 	return *e.Message
 }
 func (e *MessageNotInflight) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AWS.SimpleQueueService.MessageNotInflight"
 	}
 	return *e.ErrorCodeOverride
@@ -237,7 +237,7 @@ func (e *OverLimit) ErrorMessage() string {
 	return *e.Message
 }
 func (e *OverLimit) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "OverLimit"
 	}
 	return *e.ErrorCodeOverride
@@ -265,7 +265,7 @@ func (e *PurgeQueueInProgress) ErrorMessage() string {
 	return *e.Message
 }
 func (e *PurgeQueueInProgress) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AWS.SimpleQueueService.PurgeQueueInProgress"
 	}
 	return *e.ErrorCodeOverride
@@ -292,7 +292,7 @@ func (e *QueueDeletedRecently) ErrorMessage() string {
 	return *e.Message
 }
 func (e *QueueDeletedRecently) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AWS.SimpleQueueService.QueueDeletedRecently"
 	}
 	return *e.ErrorCodeOverride
@@ -318,7 +318,7 @@ func (e *QueueDoesNotExist) ErrorMessage() string {
 	return *e.Message
 }
 func (e *QueueDoesNotExist) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AWS.SimpleQueueService.NonExistentQueue"
 	}
 	return *e.ErrorCodeOverride
@@ -346,7 +346,7 @@ func (e *QueueNameExists) ErrorMessage() string {
 	return *e.Message
 }
 func (e *QueueNameExists) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "QueueAlreadyExists"
 	}
 	return *e.ErrorCodeOverride
@@ -372,7 +372,7 @@ func (e *ReceiptHandleIsInvalid) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ReceiptHandleIsInvalid) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ReceiptHandleIsInvalid"
 	}
 	return *e.ErrorCodeOverride
@@ -398,7 +398,7 @@ func (e *TooManyEntriesInBatchRequest) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TooManyEntriesInBatchRequest) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AWS.SimpleQueueService.TooManyEntriesInBatchRequest"
 	}
 	return *e.ErrorCodeOverride
@@ -424,7 +424,7 @@ func (e *UnsupportedOperation) ErrorMessage() string {
 	return *e.Message
 }
 func (e *UnsupportedOperation) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AWS.SimpleQueueService.UnsupportedOperation"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/ssm/types/errors.go b/service/ssm/types/errors.go
index 4c13bfed6fb..3f8dfbc8198 100644
--- a/service/ssm/types/errors.go
+++ b/service/ssm/types/errors.go
@@ -27,7 +27,7 @@ func (e *AlreadyExistsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AlreadyExistsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AlreadyExistsException"
 	}
 	return *e.ErrorCodeOverride
@@ -54,7 +54,7 @@ func (e *AssociatedInstances) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AssociatedInstances) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AssociatedInstances"
 	}
 	return *e.ErrorCodeOverride
@@ -80,7 +80,7 @@ func (e *AssociationAlreadyExists) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AssociationAlreadyExists) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AssociationAlreadyExists"
 	}
 	return *e.ErrorCodeOverride
@@ -106,7 +106,7 @@ func (e *AssociationDoesNotExist) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AssociationDoesNotExist) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AssociationDoesNotExist"
 	}
 	return *e.ErrorCodeOverride
@@ -132,7 +132,7 @@ func (e *AssociationExecutionDoesNotExist) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AssociationExecutionDoesNotExist) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AssociationExecutionDoesNotExist"
 	}
 	return *e.ErrorCodeOverride
@@ -158,7 +158,7 @@ func (e *AssociationLimitExceeded) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AssociationLimitExceeded) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AssociationLimitExceeded"
 	}
 	return *e.ErrorCodeOverride
@@ -185,7 +185,7 @@ func (e *AssociationVersionLimitExceeded) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AssociationVersionLimitExceeded) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AssociationVersionLimitExceeded"
 	}
 	return *e.ErrorCodeOverride
@@ -212,7 +212,7 @@ func (e *AutomationDefinitionNotApprovedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AutomationDefinitionNotApprovedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AutomationDefinitionNotApprovedException"
 	}
 	return *e.ErrorCodeOverride
@@ -240,7 +240,7 @@ func (e *AutomationDefinitionNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AutomationDefinitionNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AutomationDefinitionNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -268,7 +268,7 @@ func (e *AutomationDefinitionVersionNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AutomationDefinitionVersionNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AutomationDefinitionVersionNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -297,7 +297,7 @@ func (e *AutomationExecutionLimitExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AutomationExecutionLimitExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AutomationExecutionLimitExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -326,7 +326,7 @@ func (e *AutomationExecutionNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AutomationExecutionNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AutomationExecutionNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -355,7 +355,7 @@ func (e *AutomationStepNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AutomationStepNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AutomationStepNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -382,7 +382,7 @@ func (e *ComplianceTypeCountLimitExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ComplianceTypeCountLimitExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ComplianceTypeCountLimitExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -411,7 +411,7 @@ func (e *CustomSchemaCountLimitExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *CustomSchemaCountLimitExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "CustomSchemaCountLimitExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -439,7 +439,7 @@ func (e *DocumentAlreadyExists) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DocumentAlreadyExists) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DocumentAlreadyExists"
 	}
 	return *e.ErrorCodeOverride
@@ -465,7 +465,7 @@ func (e *DocumentLimitExceeded) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DocumentLimitExceeded) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DocumentLimitExceeded"
 	}
 	return *e.ErrorCodeOverride
@@ -496,7 +496,7 @@ func (e *DocumentPermissionLimit) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DocumentPermissionLimit) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DocumentPermissionLimit"
 	}
 	return *e.ErrorCodeOverride
@@ -523,7 +523,7 @@ func (e *DocumentVersionLimitExceeded) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DocumentVersionLimitExceeded) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DocumentVersionLimitExceeded"
 	}
 	return *e.ErrorCodeOverride
@@ -553,7 +553,7 @@ func (e *DoesNotExistException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DoesNotExistException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DoesNotExistException"
 	}
 	return *e.ErrorCodeOverride
@@ -580,7 +580,7 @@ func (e *DuplicateDocumentContent) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DuplicateDocumentContent) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DuplicateDocumentContent"
 	}
 	return *e.ErrorCodeOverride
@@ -607,7 +607,7 @@ func (e *DuplicateDocumentVersionName) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DuplicateDocumentVersionName) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DuplicateDocumentVersionName"
 	}
 	return *e.ErrorCodeOverride
@@ -633,7 +633,7 @@ func (e *DuplicateInstanceId) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DuplicateInstanceId) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DuplicateInstanceId"
 	}
 	return *e.ErrorCodeOverride
@@ -660,7 +660,7 @@ func (e *FeatureNotAvailableException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *FeatureNotAvailableException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "FeatureNotAvailableException"
 	}
 	return *e.ErrorCodeOverride
@@ -689,7 +689,7 @@ func (e *HierarchyLevelLimitExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *HierarchyLevelLimitExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "HierarchyLevelLimitExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -719,7 +719,7 @@ func (e *HierarchyTypeMismatchException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *HierarchyTypeMismatchException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "HierarchyTypeMismatchException"
 	}
 	return *e.ErrorCodeOverride
@@ -746,7 +746,7 @@ func (e *IdempotentParameterMismatch) ErrorMessage() string {
 	return *e.Message
 }
 func (e *IdempotentParameterMismatch) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "IdempotentParameterMismatch"
 	}
 	return *e.ErrorCodeOverride
@@ -774,7 +774,7 @@ func (e *IncompatiblePolicyException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *IncompatiblePolicyException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "IncompatiblePolicyException"
 	}
 	return *e.ErrorCodeOverride
@@ -800,7 +800,7 @@ func (e *InternalServerError) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalServerError) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalServerError"
 	}
 	return *e.ErrorCodeOverride
@@ -827,7 +827,7 @@ func (e *InvalidActivation) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidActivation) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidActivation"
 	}
 	return *e.ErrorCodeOverride
@@ -854,7 +854,7 @@ func (e *InvalidActivationId) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidActivationId) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidActivationId"
 	}
 	return *e.ErrorCodeOverride
@@ -882,7 +882,7 @@ func (e *InvalidAggregatorException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidAggregatorException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidAggregatorException"
 	}
 	return *e.ErrorCodeOverride
@@ -908,7 +908,7 @@ func (e *InvalidAllowedPatternException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidAllowedPatternException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidAllowedPatternException"
 	}
 	return *e.ErrorCodeOverride
@@ -934,7 +934,7 @@ func (e *InvalidAssociation) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidAssociation) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidAssociation"
 	}
 	return *e.ErrorCodeOverride
@@ -962,7 +962,7 @@ func (e *InvalidAssociationVersion) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidAssociationVersion) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidAssociationVersion"
 	}
 	return *e.ErrorCodeOverride
@@ -990,7 +990,7 @@ func (e *InvalidAutomationExecutionParametersException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidAutomationExecutionParametersException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidAutomationExecutionParametersException"
 	}
 	return *e.ErrorCodeOverride
@@ -1018,7 +1018,7 @@ func (e *InvalidAutomationSignalException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidAutomationSignalException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidAutomationSignalException"
 	}
 	return *e.ErrorCodeOverride
@@ -1044,7 +1044,7 @@ func (e *InvalidAutomationStatusUpdateException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidAutomationStatusUpdateException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidAutomationStatusUpdateException"
 	}
 	return *e.ErrorCodeOverride
@@ -1072,7 +1072,7 @@ func (e *InvalidCommandId) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidCommandId) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidCommandId"
 	}
 	return *e.ErrorCodeOverride
@@ -1099,7 +1099,7 @@ func (e *InvalidDeleteInventoryParametersException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidDeleteInventoryParametersException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidDeleteInventoryParametersException"
 	}
 	return *e.ErrorCodeOverride
@@ -1128,7 +1128,7 @@ func (e *InvalidDeletionIdException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidDeletionIdException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidDeletionIdException"
 	}
 	return *e.ErrorCodeOverride
@@ -1154,7 +1154,7 @@ func (e *InvalidDocument) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidDocument) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidDocument"
 	}
 	return *e.ErrorCodeOverride
@@ -1180,7 +1180,7 @@ func (e *InvalidDocumentContent) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidDocumentContent) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidDocumentContent"
 	}
 	return *e.ErrorCodeOverride
@@ -1207,7 +1207,7 @@ func (e *InvalidDocumentOperation) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidDocumentOperation) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidDocumentOperation"
 	}
 	return *e.ErrorCodeOverride
@@ -1233,7 +1233,7 @@ func (e *InvalidDocumentSchemaVersion) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidDocumentSchemaVersion) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidDocumentSchemaVersion"
 	}
 	return *e.ErrorCodeOverride
@@ -1260,7 +1260,7 @@ func (e *InvalidDocumentType) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidDocumentType) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidDocumentType"
 	}
 	return *e.ErrorCodeOverride
@@ -1286,7 +1286,7 @@ func (e *InvalidDocumentVersion) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidDocumentVersion) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidDocumentVersion"
 	}
 	return *e.ErrorCodeOverride
@@ -1313,7 +1313,7 @@ func (e *InvalidFilter) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidFilter) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidFilter"
 	}
 	return *e.ErrorCodeOverride
@@ -1339,7 +1339,7 @@ func (e *InvalidFilterKey) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidFilterKey) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidFilterKey"
 	}
 	return *e.ErrorCodeOverride
@@ -1366,7 +1366,7 @@ func (e *InvalidFilterOption) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidFilterOption) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidFilterOption"
 	}
 	return *e.ErrorCodeOverride
@@ -1392,7 +1392,7 @@ func (e *InvalidFilterValue) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidFilterValue) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidFilterValue"
 	}
 	return *e.ErrorCodeOverride
@@ -1431,7 +1431,7 @@ func (e *InvalidInstanceId) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidInstanceId) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidInstanceId"
 	}
 	return *e.ErrorCodeOverride
@@ -1457,7 +1457,7 @@ func (e *InvalidInstanceInformationFilterValue) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidInstanceInformationFilterValue) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidInstanceInformationFilterValue"
 	}
 	return *e.ErrorCodeOverride
@@ -1485,7 +1485,7 @@ func (e *InvalidInventoryGroupException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidInventoryGroupException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidInventoryGroupException"
 	}
 	return *e.ErrorCodeOverride
@@ -1512,7 +1512,7 @@ func (e *InvalidInventoryItemContextException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidInventoryItemContextException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidInventoryItemContextException"
 	}
 	return *e.ErrorCodeOverride
@@ -1540,7 +1540,7 @@ func (e *InvalidInventoryRequestException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidInventoryRequestException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidInventoryRequestException"
 	}
 	return *e.ErrorCodeOverride
@@ -1568,7 +1568,7 @@ func (e *InvalidItemContentException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidItemContentException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidItemContentException"
 	}
 	return *e.ErrorCodeOverride
@@ -1594,7 +1594,7 @@ func (e *InvalidKeyId) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidKeyId) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidKeyId"
 	}
 	return *e.ErrorCodeOverride
@@ -1620,7 +1620,7 @@ func (e *InvalidNextToken) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidNextToken) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidNextToken"
 	}
 	return *e.ErrorCodeOverride
@@ -1647,7 +1647,7 @@ func (e *InvalidNotificationConfig) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidNotificationConfig) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidNotificationConfig"
 	}
 	return *e.ErrorCodeOverride
@@ -1674,7 +1674,7 @@ func (e *InvalidOptionException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidOptionException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidOptionException"
 	}
 	return *e.ErrorCodeOverride
@@ -1700,7 +1700,7 @@ func (e *InvalidOutputFolder) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidOutputFolder) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidOutputFolder"
 	}
 	return *e.ErrorCodeOverride
@@ -1726,7 +1726,7 @@ func (e *InvalidOutputLocation) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidOutputLocation) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidOutputLocation"
 	}
 	return *e.ErrorCodeOverride
@@ -1754,7 +1754,7 @@ func (e *InvalidParameters) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidParameters) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidParameters"
 	}
 	return *e.ErrorCodeOverride
@@ -1781,7 +1781,7 @@ func (e *InvalidPermissionType) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidPermissionType) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidPermissionType"
 	}
 	return *e.ErrorCodeOverride
@@ -1807,7 +1807,7 @@ func (e *InvalidPluginName) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidPluginName) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidPluginName"
 	}
 	return *e.ErrorCodeOverride
@@ -1833,7 +1833,7 @@ func (e *InvalidPolicyAttributeException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidPolicyAttributeException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidPolicyAttributeException"
 	}
 	return *e.ErrorCodeOverride
@@ -1860,7 +1860,7 @@ func (e *InvalidPolicyTypeException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidPolicyTypeException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidPolicyTypeException"
 	}
 	return *e.ErrorCodeOverride
@@ -1887,7 +1887,7 @@ func (e *InvalidResourceId) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidResourceId) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidResourceId"
 	}
 	return *e.ErrorCodeOverride
@@ -1914,7 +1914,7 @@ func (e *InvalidResourceType) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidResourceType) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidResourceType"
 	}
 	return *e.ErrorCodeOverride
@@ -1940,7 +1940,7 @@ func (e *InvalidResultAttributeException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidResultAttributeException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidResultAttributeException"
 	}
 	return *e.ErrorCodeOverride
@@ -1971,7 +1971,7 @@ func (e *InvalidRole) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidRole) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidRole"
 	}
 	return *e.ErrorCodeOverride
@@ -1997,7 +1997,7 @@ func (e *InvalidSchedule) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidSchedule) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidSchedule"
 	}
 	return *e.ErrorCodeOverride
@@ -2023,7 +2023,7 @@ func (e *InvalidTag) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidTag) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidTag"
 	}
 	return *e.ErrorCodeOverride
@@ -2050,7 +2050,7 @@ func (e *InvalidTarget) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidTarget) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidTarget"
 	}
 	return *e.ErrorCodeOverride
@@ -2076,7 +2076,7 @@ func (e *InvalidTargetMaps) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidTargetMaps) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidTargetMaps"
 	}
 	return *e.ErrorCodeOverride
@@ -2102,7 +2102,7 @@ func (e *InvalidTypeNameException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidTypeNameException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidTypeNameException"
 	}
 	return *e.ErrorCodeOverride
@@ -2128,7 +2128,7 @@ func (e *InvalidUpdate) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidUpdate) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidUpdate"
 	}
 	return *e.ErrorCodeOverride
@@ -2155,7 +2155,7 @@ func (e *InvocationDoesNotExist) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvocationDoesNotExist) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvocationDoesNotExist"
 	}
 	return *e.ErrorCodeOverride
@@ -2183,7 +2183,7 @@ func (e *ItemContentMismatchException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ItemContentMismatchException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ItemContentMismatchException"
 	}
 	return *e.ErrorCodeOverride
@@ -2211,7 +2211,7 @@ func (e *ItemSizeLimitExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ItemSizeLimitExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ItemSizeLimitExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -2237,7 +2237,7 @@ func (e *MaxDocumentSizeExceeded) ErrorMessage() string {
 	return *e.Message
 }
 func (e *MaxDocumentSizeExceeded) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "MaxDocumentSizeExceeded"
 	}
 	return *e.ErrorCodeOverride
@@ -2265,7 +2265,7 @@ func (e *OpsItemAccessDeniedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *OpsItemAccessDeniedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "OpsItemAccessDeniedException"
 	}
 	return *e.ErrorCodeOverride
@@ -2293,7 +2293,7 @@ func (e *OpsItemAlreadyExistsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *OpsItemAlreadyExistsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "OpsItemAlreadyExistsException"
 	}
 	return *e.ErrorCodeOverride
@@ -2322,7 +2322,7 @@ func (e *OpsItemInvalidParameterException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *OpsItemInvalidParameterException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "OpsItemInvalidParameterException"
 	}
 	return *e.ErrorCodeOverride
@@ -2354,7 +2354,7 @@ func (e *OpsItemLimitExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *OpsItemLimitExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "OpsItemLimitExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -2380,7 +2380,7 @@ func (e *OpsItemNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *OpsItemNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "OpsItemNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -2409,7 +2409,7 @@ func (e *OpsItemRelatedItemAlreadyExistsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *OpsItemRelatedItemAlreadyExistsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "OpsItemRelatedItemAlreadyExistsException"
 	}
 	return *e.ErrorCodeOverride
@@ -2438,7 +2438,7 @@ func (e *OpsItemRelatedItemAssociationNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *OpsItemRelatedItemAssociationNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "OpsItemRelatedItemAssociationNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -2466,7 +2466,7 @@ func (e *OpsMetadataAlreadyExistsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *OpsMetadataAlreadyExistsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "OpsMetadataAlreadyExistsException"
 	}
 	return *e.ErrorCodeOverride
@@ -2492,7 +2492,7 @@ func (e *OpsMetadataInvalidArgumentException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *OpsMetadataInvalidArgumentException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "OpsMetadataInvalidArgumentException"
 	}
 	return *e.ErrorCodeOverride
@@ -2521,7 +2521,7 @@ func (e *OpsMetadataKeyLimitExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *OpsMetadataKeyLimitExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "OpsMetadataKeyLimitExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -2551,7 +2551,7 @@ func (e *OpsMetadataLimitExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *OpsMetadataLimitExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "OpsMetadataLimitExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -2577,7 +2577,7 @@ func (e *OpsMetadataNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *OpsMetadataNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "OpsMetadataNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -2604,7 +2604,7 @@ func (e *OpsMetadataTooManyUpdatesException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *OpsMetadataTooManyUpdatesException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "OpsMetadataTooManyUpdatesException"
 	}
 	return *e.ErrorCodeOverride
@@ -2632,7 +2632,7 @@ func (e *ParameterAlreadyExists) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ParameterAlreadyExists) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ParameterAlreadyExists"
 	}
 	return *e.ErrorCodeOverride
@@ -2659,7 +2659,7 @@ func (e *ParameterLimitExceeded) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ParameterLimitExceeded) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ParameterLimitExceeded"
 	}
 	return *e.ErrorCodeOverride
@@ -2702,7 +2702,7 @@ func (e *ParameterMaxVersionLimitExceeded) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ParameterMaxVersionLimitExceeded) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ParameterMaxVersionLimitExceeded"
 	}
 	return *e.ErrorCodeOverride
@@ -2728,7 +2728,7 @@ func (e *ParameterNotFound) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ParameterNotFound) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ParameterNotFound"
 	}
 	return *e.ErrorCodeOverride
@@ -2754,7 +2754,7 @@ func (e *ParameterPatternMismatchException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ParameterPatternMismatchException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ParameterPatternMismatchException"
 	}
 	return *e.ErrorCodeOverride
@@ -2780,7 +2780,7 @@ func (e *ParameterVersionLabelLimitExceeded) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ParameterVersionLabelLimitExceeded) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ParameterVersionLabelLimitExceeded"
 	}
 	return *e.ErrorCodeOverride
@@ -2809,7 +2809,7 @@ func (e *ParameterVersionNotFound) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ParameterVersionNotFound) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ParameterVersionNotFound"
 	}
 	return *e.ErrorCodeOverride
@@ -2836,7 +2836,7 @@ func (e *PoliciesLimitExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *PoliciesLimitExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "PoliciesLimitExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -2864,7 +2864,7 @@ func (e *ResourceDataSyncAlreadyExistsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceDataSyncAlreadyExistsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceDataSyncAlreadyExistsException"
 	}
 	return *e.ErrorCodeOverride
@@ -2893,7 +2893,7 @@ func (e *ResourceDataSyncConflictException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceDataSyncConflictException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceDataSyncConflictException"
 	}
 	return *e.ErrorCodeOverride
@@ -2919,7 +2919,7 @@ func (e *ResourceDataSyncCountExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceDataSyncCountExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceDataSyncCountExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -2947,7 +2947,7 @@ func (e *ResourceDataSyncInvalidConfigurationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceDataSyncInvalidConfigurationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceDataSyncInvalidConfigurationException"
 	}
 	return *e.ErrorCodeOverride
@@ -2978,7 +2978,7 @@ func (e *ResourceDataSyncNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceDataSyncNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceDataSyncNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -3005,7 +3005,7 @@ func (e *ResourceInUseException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceInUseException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceInUseException"
 	}
 	return *e.ErrorCodeOverride
@@ -3036,7 +3036,7 @@ func (e *ResourceLimitExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceLimitExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceLimitExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -3064,7 +3064,7 @@ func (e *ResourcePolicyConflictException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourcePolicyConflictException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourcePolicyConflictException"
 	}
 	return *e.ErrorCodeOverride
@@ -3093,7 +3093,7 @@ func (e *ResourcePolicyInvalidParameterException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourcePolicyInvalidParameterException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourcePolicyInvalidParameterException"
 	}
 	return *e.ErrorCodeOverride
@@ -3126,7 +3126,7 @@ func (e *ResourcePolicyLimitExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourcePolicyLimitExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourcePolicyLimitExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -3155,7 +3155,7 @@ func (e *ServiceSettingNotFound) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ServiceSettingNotFound) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ServiceSettingNotFound"
 	}
 	return *e.ErrorCodeOverride
@@ -3181,7 +3181,7 @@ func (e *StatusUnchanged) ErrorMessage() string {
 	return *e.Message
 }
 func (e *StatusUnchanged) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "StatusUnchanged"
 	}
 	return *e.ErrorCodeOverride
@@ -3207,7 +3207,7 @@ func (e *SubTypeCountLimitExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *SubTypeCountLimitExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "SubTypeCountLimitExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -3236,7 +3236,7 @@ func (e *TargetInUseException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TargetInUseException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TargetInUseException"
 	}
 	return *e.ErrorCodeOverride
@@ -3268,7 +3268,7 @@ func (e *TargetNotConnected) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TargetNotConnected) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TargetNotConnected"
 	}
 	return *e.ErrorCodeOverride
@@ -3295,7 +3295,7 @@ func (e *TooManyTagsError) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TooManyTagsError) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TooManyTagsError"
 	}
 	return *e.ErrorCodeOverride
@@ -3321,7 +3321,7 @@ func (e *TooManyUpdates) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TooManyUpdates) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TooManyUpdates"
 	}
 	return *e.ErrorCodeOverride
@@ -3347,7 +3347,7 @@ func (e *TotalSizeLimitExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TotalSizeLimitExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TotalSizeLimitExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -3373,7 +3373,7 @@ func (e *UnsupportedCalendarException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *UnsupportedCalendarException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "UnsupportedCalendarException"
 	}
 	return *e.ErrorCodeOverride
@@ -3404,7 +3404,7 @@ func (e *UnsupportedFeatureRequiredException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *UnsupportedFeatureRequiredException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "UnsupportedFeatureRequiredException"
 	}
 	return *e.ErrorCodeOverride
@@ -3436,7 +3436,7 @@ func (e *UnsupportedInventoryItemContextException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *UnsupportedInventoryItemContextException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "UnsupportedInventoryItemContextException"
 	}
 	return *e.ErrorCodeOverride
@@ -3466,7 +3466,7 @@ func (e *UnsupportedInventorySchemaVersionException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *UnsupportedInventorySchemaVersionException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "UnsupportedInventorySchemaVersionException"
 	}
 	return *e.ErrorCodeOverride
@@ -3495,7 +3495,7 @@ func (e *UnsupportedOperatingSystem) ErrorMessage() string {
 	return *e.Message
 }
 func (e *UnsupportedOperatingSystem) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "UnsupportedOperatingSystem"
 	}
 	return *e.ErrorCodeOverride
@@ -3521,7 +3521,7 @@ func (e *UnsupportedParameterType) ErrorMessage() string {
 	return *e.Message
 }
 func (e *UnsupportedParameterType) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "UnsupportedParameterType"
 	}
 	return *e.ErrorCodeOverride
@@ -3548,7 +3548,7 @@ func (e *UnsupportedPlatformType) ErrorMessage() string {
 	return *e.Message
 }
 func (e *UnsupportedPlatformType) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "UnsupportedPlatformType"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/ssmcontacts/types/errors.go b/service/ssmcontacts/types/errors.go
index 92720bcf1da..4f2735a9fe8 100644
--- a/service/ssmcontacts/types/errors.go
+++ b/service/ssmcontacts/types/errors.go
@@ -26,7 +26,7 @@ func (e *AccessDeniedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AccessDeniedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AccessDeniedException"
 	}
 	return *e.ErrorCodeOverride
@@ -55,7 +55,7 @@ func (e *ConflictException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ConflictException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ConflictException"
 	}
 	return *e.ErrorCodeOverride
@@ -81,7 +81,7 @@ func (e *DataEncryptionException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DataEncryptionException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DataEncryptionException"
 	}
 	return *e.ErrorCodeOverride
@@ -109,7 +109,7 @@ func (e *InternalServerException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalServerException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalServerException"
 	}
 	return *e.ErrorCodeOverride
@@ -138,7 +138,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -169,7 +169,7 @@ func (e *ServiceQuotaExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ServiceQuotaExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ServiceQuotaExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -199,7 +199,7 @@ func (e *ThrottlingException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ThrottlingException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ThrottlingException"
 	}
 	return *e.ErrorCodeOverride
@@ -229,7 +229,7 @@ func (e *ValidationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ValidationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ValidationException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/ssmincidents/types/errors.go b/service/ssmincidents/types/errors.go
index a8772de97d5..0355ed3b77b 100644
--- a/service/ssmincidents/types/errors.go
+++ b/service/ssmincidents/types/errors.go
@@ -27,7 +27,7 @@ func (e *AccessDeniedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AccessDeniedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AccessDeniedException"
 	}
 	return *e.ErrorCodeOverride
@@ -57,7 +57,7 @@ func (e *ConflictException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ConflictException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ConflictException"
 	}
 	return *e.ErrorCodeOverride
@@ -84,7 +84,7 @@ func (e *InternalServerException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalServerException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalServerException"
 	}
 	return *e.ErrorCodeOverride
@@ -113,7 +113,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -144,7 +144,7 @@ func (e *ServiceQuotaExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ServiceQuotaExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ServiceQuotaExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -173,7 +173,7 @@ func (e *ThrottlingException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ThrottlingException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ThrottlingException"
 	}
 	return *e.ErrorCodeOverride
@@ -200,7 +200,7 @@ func (e *ValidationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ValidationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ValidationException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/ssmsap/types/errors.go b/service/ssmsap/types/errors.go
index 9b8823aaee8..bcf891db0ac 100644
--- a/service/ssmsap/types/errors.go
+++ b/service/ssmsap/types/errors.go
@@ -26,7 +26,7 @@ func (e *ConflictException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ConflictException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ConflictException"
 	}
 	return *e.ErrorCodeOverride
@@ -52,7 +52,7 @@ func (e *InternalServerException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalServerException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalServerException"
 	}
 	return *e.ErrorCodeOverride
@@ -78,7 +78,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -104,7 +104,7 @@ func (e *ValidationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ValidationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ValidationException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/sso/types/errors.go b/service/sso/types/errors.go
index 8f0ac3a2937..e97a126e8bb 100644
--- a/service/sso/types/errors.go
+++ b/service/sso/types/errors.go
@@ -27,7 +27,7 @@ func (e *InvalidRequestException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidRequestException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidRequestException"
 	}
 	return *e.ErrorCodeOverride
@@ -53,7 +53,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -80,7 +80,7 @@ func (e *TooManyRequestsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TooManyRequestsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TooManyRequestsException"
 	}
 	return *e.ErrorCodeOverride
@@ -107,7 +107,7 @@ func (e *UnauthorizedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *UnauthorizedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "UnauthorizedException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/ssoadmin/types/errors.go b/service/ssoadmin/types/errors.go
index 7f739c733a7..a738a17dbb7 100644
--- a/service/ssoadmin/types/errors.go
+++ b/service/ssoadmin/types/errors.go
@@ -26,7 +26,7 @@ func (e *AccessDeniedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AccessDeniedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AccessDeniedException"
 	}
 	return *e.ErrorCodeOverride
@@ -55,7 +55,7 @@ func (e *ConflictException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ConflictException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ConflictException"
 	}
 	return *e.ErrorCodeOverride
@@ -82,7 +82,7 @@ func (e *InternalServerException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalServerException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalServerException"
 	}
 	return *e.ErrorCodeOverride
@@ -108,7 +108,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -135,7 +135,7 @@ func (e *ServiceQuotaExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ServiceQuotaExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ServiceQuotaExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -162,7 +162,7 @@ func (e *ThrottlingException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ThrottlingException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ThrottlingException"
 	}
 	return *e.ErrorCodeOverride
@@ -188,7 +188,7 @@ func (e *ValidationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ValidationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ValidationException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/ssooidc/types/errors.go b/service/ssooidc/types/errors.go
index b75cc489d93..8814b27d17f 100644
--- a/service/ssooidc/types/errors.go
+++ b/service/ssooidc/types/errors.go
@@ -29,7 +29,7 @@ func (e *AccessDeniedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AccessDeniedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AccessDeniedException"
 	}
 	return *e.ErrorCodeOverride
@@ -59,7 +59,7 @@ func (e *AuthorizationPendingException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AuthorizationPendingException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AuthorizationPendingException"
 	}
 	return *e.ErrorCodeOverride
@@ -89,7 +89,7 @@ func (e *ExpiredTokenException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ExpiredTokenException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ExpiredTokenException"
 	}
 	return *e.ErrorCodeOverride
@@ -119,7 +119,7 @@ func (e *InternalServerException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalServerException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalServerException"
 	}
 	return *e.ErrorCodeOverride
@@ -150,7 +150,7 @@ func (e *InvalidClientException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidClientException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidClientException"
 	}
 	return *e.ErrorCodeOverride
@@ -180,7 +180,7 @@ func (e *InvalidClientMetadataException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidClientMetadataException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidClientMetadataException"
 	}
 	return *e.ErrorCodeOverride
@@ -210,7 +210,7 @@ func (e *InvalidGrantException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidGrantException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidGrantException"
 	}
 	return *e.ErrorCodeOverride
@@ -240,7 +240,7 @@ func (e *InvalidRequestException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidRequestException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidRequestException"
 	}
 	return *e.ErrorCodeOverride
@@ -269,7 +269,7 @@ func (e *InvalidScopeException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidScopeException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidScopeException"
 	}
 	return *e.ErrorCodeOverride
@@ -299,7 +299,7 @@ func (e *SlowDownException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *SlowDownException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "SlowDownException"
 	}
 	return *e.ErrorCodeOverride
@@ -329,7 +329,7 @@ func (e *UnauthorizedClientException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *UnauthorizedClientException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "UnauthorizedClientException"
 	}
 	return *e.ErrorCodeOverride
@@ -358,7 +358,7 @@ func (e *UnsupportedGrantTypeException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *UnsupportedGrantTypeException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "UnsupportedGrantTypeException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/storagegateway/types/errors.go b/service/storagegateway/types/errors.go
index 0d684c39db4..dc4b041bc9a 100644
--- a/service/storagegateway/types/errors.go
+++ b/service/storagegateway/types/errors.go
@@ -29,7 +29,7 @@ func (e *InternalServerError) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalServerError) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalServerError"
 	}
 	return *e.ErrorCodeOverride
@@ -58,7 +58,7 @@ func (e *InvalidGatewayRequestException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidGatewayRequestException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidGatewayRequestException"
 	}
 	return *e.ErrorCodeOverride
@@ -87,7 +87,7 @@ func (e *ServiceUnavailableError) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ServiceUnavailableError) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ServiceUnavailableError"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/sts/types/errors.go b/service/sts/types/errors.go
index 88d3e6c6935..9e3adaa9a07 100644
--- a/service/sts/types/errors.go
+++ b/service/sts/types/errors.go
@@ -27,7 +27,7 @@ func (e *ExpiredTokenException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ExpiredTokenException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ExpiredTokenException"
 	}
 	return *e.ErrorCodeOverride
@@ -57,7 +57,7 @@ func (e *IDPCommunicationErrorException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *IDPCommunicationErrorException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "IDPCommunicationError"
 	}
 	return *e.ErrorCodeOverride
@@ -86,7 +86,7 @@ func (e *IDPRejectedClaimException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *IDPRejectedClaimException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "IDPRejectedClaim"
 	}
 	return *e.ErrorCodeOverride
@@ -114,7 +114,7 @@ func (e *InvalidAuthorizationMessageException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidAuthorizationMessageException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidAuthorizationMessageException"
 	}
 	return *e.ErrorCodeOverride
@@ -144,7 +144,7 @@ func (e *InvalidIdentityTokenException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidIdentityTokenException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidIdentityToken"
 	}
 	return *e.ErrorCodeOverride
@@ -171,7 +171,7 @@ func (e *MalformedPolicyDocumentException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *MalformedPolicyDocumentException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "MalformedPolicyDocument"
 	}
 	return *e.ErrorCodeOverride
@@ -208,7 +208,7 @@ func (e *PackedPolicyTooLargeException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *PackedPolicyTooLargeException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "PackedPolicyTooLarge"
 	}
 	return *e.ErrorCodeOverride
@@ -239,7 +239,7 @@ func (e *RegionDisabledException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *RegionDisabledException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "RegionDisabledException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/support/types/errors.go b/service/support/types/errors.go
index dd018a2706a..ef5caf9586f 100644
--- a/service/support/types/errors.go
+++ b/service/support/types/errors.go
@@ -26,7 +26,7 @@ func (e *AttachmentIdNotFound) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AttachmentIdNotFound) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AttachmentIdNotFound"
 	}
 	return *e.ErrorCodeOverride
@@ -53,7 +53,7 @@ func (e *AttachmentLimitExceeded) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AttachmentLimitExceeded) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AttachmentLimitExceeded"
 	}
 	return *e.ErrorCodeOverride
@@ -80,7 +80,7 @@ func (e *AttachmentSetExpired) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AttachmentSetExpired) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AttachmentSetExpired"
 	}
 	return *e.ErrorCodeOverride
@@ -106,7 +106,7 @@ func (e *AttachmentSetIdNotFound) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AttachmentSetIdNotFound) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AttachmentSetIdNotFound"
 	}
 	return *e.ErrorCodeOverride
@@ -133,7 +133,7 @@ func (e *AttachmentSetSizeLimitExceeded) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AttachmentSetSizeLimitExceeded) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AttachmentSetSizeLimitExceeded"
 	}
 	return *e.ErrorCodeOverride
@@ -159,7 +159,7 @@ func (e *CaseCreationLimitExceeded) ErrorMessage() string {
 	return *e.Message
 }
 func (e *CaseCreationLimitExceeded) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "CaseCreationLimitExceeded"
 	}
 	return *e.ErrorCodeOverride
@@ -185,7 +185,7 @@ func (e *CaseIdNotFound) ErrorMessage() string {
 	return *e.Message
 }
 func (e *CaseIdNotFound) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "CaseIdNotFound"
 	}
 	return *e.ErrorCodeOverride
@@ -212,7 +212,7 @@ func (e *DescribeAttachmentLimitExceeded) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DescribeAttachmentLimitExceeded) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DescribeAttachmentLimitExceeded"
 	}
 	return *e.ErrorCodeOverride
@@ -238,7 +238,7 @@ func (e *InternalServerError) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalServerError) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalServerError"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/supportapp/types/errors.go b/service/supportapp/types/errors.go
index f1f2bae18d4..15a1ba4ad7f 100644
--- a/service/supportapp/types/errors.go
+++ b/service/supportapp/types/errors.go
@@ -26,7 +26,7 @@ func (e *AccessDeniedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AccessDeniedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AccessDeniedException"
 	}
 	return *e.ErrorCodeOverride
@@ -74,7 +74,7 @@ func (e *ConflictException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ConflictException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ConflictException"
 	}
 	return *e.ErrorCodeOverride
@@ -101,7 +101,7 @@ func (e *InternalServerException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalServerException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalServerException"
 	}
 	return *e.ErrorCodeOverride
@@ -128,7 +128,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -157,7 +157,7 @@ func (e *ServiceQuotaExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ServiceQuotaExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ServiceQuotaExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -184,7 +184,7 @@ func (e *ValidationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ValidationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ValidationException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/swf/types/errors.go b/service/swf/types/errors.go
index fef194b7099..4986e6bc221 100644
--- a/service/swf/types/errors.go
+++ b/service/swf/types/errors.go
@@ -32,7 +32,7 @@ func (e *DefaultUndefinedFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DefaultUndefinedFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DefaultUndefinedFault"
 	}
 	return *e.ErrorCodeOverride
@@ -60,7 +60,7 @@ func (e *DomainAlreadyExistsFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DomainAlreadyExistsFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DomainAlreadyExistsFault"
 	}
 	return *e.ErrorCodeOverride
@@ -86,7 +86,7 @@ func (e *DomainDeprecatedFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DomainDeprecatedFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DomainDeprecatedFault"
 	}
 	return *e.ErrorCodeOverride
@@ -114,7 +114,7 @@ func (e *LimitExceededFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *LimitExceededFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "LimitExceededFault"
 	}
 	return *e.ErrorCodeOverride
@@ -141,7 +141,7 @@ func (e *OperationNotPermittedFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *OperationNotPermittedFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "OperationNotPermittedFault"
 	}
 	return *e.ErrorCodeOverride
@@ -167,7 +167,7 @@ func (e *TooManyTagsFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TooManyTagsFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TooManyTagsFault"
 	}
 	return *e.ErrorCodeOverride
@@ -195,7 +195,7 @@ func (e *TypeAlreadyExistsFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TypeAlreadyExistsFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TypeAlreadyExistsFault"
 	}
 	return *e.ErrorCodeOverride
@@ -221,7 +221,7 @@ func (e *TypeDeprecatedFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TypeDeprecatedFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TypeDeprecatedFault"
 	}
 	return *e.ErrorCodeOverride
@@ -249,7 +249,7 @@ func (e *UnknownResourceFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *UnknownResourceFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "UnknownResourceFault"
 	}
 	return *e.ErrorCodeOverride
@@ -276,7 +276,7 @@ func (e *WorkflowExecutionAlreadyStartedFault) ErrorMessage() string {
 	return *e.Message
 }
 func (e *WorkflowExecutionAlreadyStartedFault) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "WorkflowExecutionAlreadyStartedFault"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/synthetics/types/errors.go b/service/synthetics/types/errors.go
index 68160061c45..1e189893566 100644
--- a/service/synthetics/types/errors.go
+++ b/service/synthetics/types/errors.go
@@ -26,7 +26,7 @@ func (e *BadRequestException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *BadRequestException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "BadRequestException"
 	}
 	return *e.ErrorCodeOverride
@@ -52,7 +52,7 @@ func (e *ConflictException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ConflictException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ConflictException"
 	}
 	return *e.ErrorCodeOverride
@@ -78,7 +78,7 @@ func (e *InternalFailureException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalFailureException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalFailureException"
 	}
 	return *e.ErrorCodeOverride
@@ -104,7 +104,7 @@ func (e *InternalServerException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalServerException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalServerException"
 	}
 	return *e.ErrorCodeOverride
@@ -130,7 +130,7 @@ func (e *NotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *NotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "NotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -156,7 +156,7 @@ func (e *RequestEntityTooLargeException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *RequestEntityTooLargeException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "RequestEntityTooLargeException"
 	}
 	return *e.ErrorCodeOverride
@@ -182,7 +182,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -208,7 +208,7 @@ func (e *ServiceQuotaExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ServiceQuotaExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ServiceQuotaExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -234,7 +234,7 @@ func (e *TooManyRequestsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TooManyRequestsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TooManyRequestsException"
 	}
 	return *e.ErrorCodeOverride
@@ -260,7 +260,7 @@ func (e *ValidationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ValidationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ValidationException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/textract/types/errors.go b/service/textract/types/errors.go
index bed170b769d..efb39ef72fb 100644
--- a/service/textract/types/errors.go
+++ b/service/textract/types/errors.go
@@ -29,7 +29,7 @@ func (e *AccessDeniedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AccessDeniedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AccessDeniedException"
 	}
 	return *e.ErrorCodeOverride
@@ -58,7 +58,7 @@ func (e *BadDocumentException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *BadDocumentException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "BadDocumentException"
 	}
 	return *e.ErrorCodeOverride
@@ -88,7 +88,7 @@ func (e *DocumentTooLargeException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DocumentTooLargeException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DocumentTooLargeException"
 	}
 	return *e.ErrorCodeOverride
@@ -120,7 +120,7 @@ func (e *HumanLoopQuotaExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *HumanLoopQuotaExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "HumanLoopQuotaExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -150,7 +150,7 @@ func (e *IdempotentParameterMismatchException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *IdempotentParameterMismatchException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "IdempotentParameterMismatchException"
 	}
 	return *e.ErrorCodeOverride
@@ -180,7 +180,7 @@ func (e *InternalServerError) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalServerError) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalServerError"
 	}
 	return *e.ErrorCodeOverride
@@ -208,7 +208,7 @@ func (e *InvalidJobIdException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidJobIdException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidJobIdException"
 	}
 	return *e.ErrorCodeOverride
@@ -237,7 +237,7 @@ func (e *InvalidKMSKeyException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidKMSKeyException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidKMSKeyException"
 	}
 	return *e.ErrorCodeOverride
@@ -268,7 +268,7 @@ func (e *InvalidParameterException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidParameterException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidParameterException"
 	}
 	return *e.ErrorCodeOverride
@@ -300,7 +300,7 @@ func (e *InvalidS3ObjectException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidS3ObjectException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidS3ObjectException"
 	}
 	return *e.ErrorCodeOverride
@@ -332,7 +332,7 @@ func (e *LimitExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *LimitExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "LimitExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -361,7 +361,7 @@ func (e *ProvisionedThroughputExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ProvisionedThroughputExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ProvisionedThroughputExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -392,7 +392,7 @@ func (e *ThrottlingException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ThrottlingException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ThrottlingException"
 	}
 	return *e.ErrorCodeOverride
@@ -421,7 +421,7 @@ func (e *UnsupportedDocumentException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *UnsupportedDocumentException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "UnsupportedDocumentException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/timestreamquery/types/errors.go b/service/timestreamquery/types/errors.go
index 28145f2ac62..ec62ff739a1 100644
--- a/service/timestreamquery/types/errors.go
+++ b/service/timestreamquery/types/errors.go
@@ -26,7 +26,7 @@ func (e *AccessDeniedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AccessDeniedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AccessDeniedException"
 	}
 	return *e.ErrorCodeOverride
@@ -52,7 +52,7 @@ func (e *ConflictException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ConflictException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ConflictException"
 	}
 	return *e.ErrorCodeOverride
@@ -79,7 +79,7 @@ func (e *InternalServerException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalServerException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalServerException"
 	}
 	return *e.ErrorCodeOverride
@@ -105,7 +105,7 @@ func (e *InvalidEndpointException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidEndpointException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidEndpointException"
 	}
 	return *e.ErrorCodeOverride
@@ -131,7 +131,7 @@ func (e *QueryExecutionException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *QueryExecutionException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "QueryExecutionException"
 	}
 	return *e.ErrorCodeOverride
@@ -159,7 +159,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -185,7 +185,7 @@ func (e *ServiceQuotaExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ServiceQuotaExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ServiceQuotaExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -211,7 +211,7 @@ func (e *ThrottlingException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ThrottlingException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ThrottlingException"
 	}
 	return *e.ErrorCodeOverride
@@ -237,7 +237,7 @@ func (e *ValidationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ValidationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ValidationException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/timestreamwrite/types/errors.go b/service/timestreamwrite/types/errors.go
index d4f2092bef8..05fce7f1786 100644
--- a/service/timestreamwrite/types/errors.go
+++ b/service/timestreamwrite/types/errors.go
@@ -26,7 +26,7 @@ func (e *AccessDeniedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AccessDeniedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AccessDeniedException"
 	}
 	return *e.ErrorCodeOverride
@@ -53,7 +53,7 @@ func (e *ConflictException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ConflictException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ConflictException"
 	}
 	return *e.ErrorCodeOverride
@@ -80,7 +80,7 @@ func (e *InternalServerException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalServerException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalServerException"
 	}
 	return *e.ErrorCodeOverride
@@ -106,7 +106,7 @@ func (e *InvalidEndpointException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidEndpointException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidEndpointException"
 	}
 	return *e.ErrorCodeOverride
@@ -160,7 +160,7 @@ func (e *RejectedRecordsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *RejectedRecordsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "RejectedRecordsException"
 	}
 	return *e.ErrorCodeOverride
@@ -187,7 +187,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -213,7 +213,7 @@ func (e *ServiceQuotaExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ServiceQuotaExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ServiceQuotaExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -240,7 +240,7 @@ func (e *ThrottlingException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ThrottlingException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ThrottlingException"
 	}
 	return *e.ErrorCodeOverride
@@ -266,7 +266,7 @@ func (e *ValidationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ValidationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ValidationException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/tnb/types/errors.go b/service/tnb/types/errors.go
index a9fc0ac91f6..67681a6405c 100644
--- a/service/tnb/types/errors.go
+++ b/service/tnb/types/errors.go
@@ -26,7 +26,7 @@ func (e *AccessDeniedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AccessDeniedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AccessDeniedException"
 	}
 	return *e.ErrorCodeOverride
@@ -52,7 +52,7 @@ func (e *InternalServerException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalServerException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalServerException"
 	}
 	return *e.ErrorCodeOverride
@@ -78,7 +78,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -104,7 +104,7 @@ func (e *ServiceQuotaExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ServiceQuotaExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ServiceQuotaExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -130,7 +130,7 @@ func (e *ThrottlingException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ThrottlingException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ThrottlingException"
 	}
 	return *e.ErrorCodeOverride
@@ -157,7 +157,7 @@ func (e *ValidationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ValidationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ValidationException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/transcribe/types/errors.go b/service/transcribe/types/errors.go
index abcf4f83ad1..50ba920794d 100644
--- a/service/transcribe/types/errors.go
+++ b/service/transcribe/types/errors.go
@@ -28,7 +28,7 @@ func (e *BadRequestException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *BadRequestException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "BadRequestException"
 	}
 	return *e.ErrorCodeOverride
@@ -55,7 +55,7 @@ func (e *ConflictException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ConflictException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ConflictException"
 	}
 	return *e.ErrorCodeOverride
@@ -82,7 +82,7 @@ func (e *InternalFailureException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalFailureException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalFailureException"
 	}
 	return *e.ErrorCodeOverride
@@ -109,7 +109,7 @@ func (e *LimitExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *LimitExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "LimitExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -136,7 +136,7 @@ func (e *NotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *NotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "NotFoundException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/transcribestreaming/types/errors.go b/service/transcribestreaming/types/errors.go
index 1f918e4559f..1242cac65e0 100644
--- a/service/transcribestreaming/types/errors.go
+++ b/service/transcribestreaming/types/errors.go
@@ -29,7 +29,7 @@ func (e *BadRequestException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *BadRequestException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "BadRequestException"
 	}
 	return *e.ErrorCodeOverride
@@ -56,7 +56,7 @@ func (e *ConflictException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ConflictException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ConflictException"
 	}
 	return *e.ErrorCodeOverride
@@ -83,7 +83,7 @@ func (e *InternalFailureException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalFailureException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalFailureException"
 	}
 	return *e.ErrorCodeOverride
@@ -111,7 +111,7 @@ func (e *LimitExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *LimitExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "LimitExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -137,7 +137,7 @@ func (e *ServiceUnavailableException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ServiceUnavailableException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ServiceUnavailableException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/transfer/types/errors.go b/service/transfer/types/errors.go
index ede7a40f48f..f153614fbed 100644
--- a/service/transfer/types/errors.go
+++ b/service/transfer/types/errors.go
@@ -26,7 +26,7 @@ func (e *AccessDeniedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AccessDeniedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AccessDeniedException"
 	}
 	return *e.ErrorCodeOverride
@@ -54,7 +54,7 @@ func (e *ConflictException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ConflictException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ConflictException"
 	}
 	return *e.ErrorCodeOverride
@@ -81,7 +81,7 @@ func (e *InternalServiceError) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalServiceError) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalServiceError"
 	}
 	return *e.ErrorCodeOverride
@@ -107,7 +107,7 @@ func (e *InvalidNextTokenException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidNextTokenException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidNextTokenException"
 	}
 	return *e.ErrorCodeOverride
@@ -133,7 +133,7 @@ func (e *InvalidRequestException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidRequestException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidRequestException"
 	}
 	return *e.ErrorCodeOverride
@@ -162,7 +162,7 @@ func (e *ResourceExistsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceExistsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceExistsException"
 	}
 	return *e.ErrorCodeOverride
@@ -192,7 +192,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -219,7 +219,7 @@ func (e *ServiceUnavailableException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ServiceUnavailableException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ServiceUnavailableException"
 	}
 	return *e.ErrorCodeOverride
@@ -247,7 +247,7 @@ func (e *ThrottlingException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ThrottlingException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ThrottlingException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/translate/types/errors.go b/service/translate/types/errors.go
index 1ae2d3be53d..7816966c16c 100644
--- a/service/translate/types/errors.go
+++ b/service/translate/types/errors.go
@@ -27,7 +27,7 @@ func (e *ConcurrentModificationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ConcurrentModificationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ConcurrentModificationException"
 	}
 	return *e.ErrorCodeOverride
@@ -53,7 +53,7 @@ func (e *ConflictException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ConflictException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ConflictException"
 	}
 	return *e.ErrorCodeOverride
@@ -86,7 +86,7 @@ func (e *DetectedLanguageLowConfidenceException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DetectedLanguageLowConfidenceException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DetectedLanguageLowConfidenceException"
 	}
 	return *e.ErrorCodeOverride
@@ -114,7 +114,7 @@ func (e *InternalServerException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalServerException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalServerException"
 	}
 	return *e.ErrorCodeOverride
@@ -140,7 +140,7 @@ func (e *InvalidFilterException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidFilterException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidFilterException"
 	}
 	return *e.ErrorCodeOverride
@@ -167,7 +167,7 @@ func (e *InvalidParameterValueException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidParameterValueException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidParameterValueException"
 	}
 	return *e.ErrorCodeOverride
@@ -194,7 +194,7 @@ func (e *InvalidRequestException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidRequestException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidRequestException"
 	}
 	return *e.ErrorCodeOverride
@@ -221,7 +221,7 @@ func (e *LimitExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *LimitExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "LimitExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -249,7 +249,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -276,7 +276,7 @@ func (e *ServiceUnavailableException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ServiceUnavailableException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ServiceUnavailableException"
 	}
 	return *e.ErrorCodeOverride
@@ -303,7 +303,7 @@ func (e *TextSizeLimitExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TextSizeLimitExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TextSizeLimitExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -330,7 +330,7 @@ func (e *TooManyRequestsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TooManyRequestsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TooManyRequestsException"
 	}
 	return *e.ErrorCodeOverride
@@ -358,7 +358,7 @@ func (e *TooManyTagsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TooManyTagsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TooManyTagsException"
 	}
 	return *e.ErrorCodeOverride
@@ -386,7 +386,7 @@ func (e *UnsupportedDisplayLanguageCodeException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *UnsupportedDisplayLanguageCodeException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "UnsupportedDisplayLanguageCodeException"
 	}
 	return *e.ErrorCodeOverride
@@ -420,7 +420,7 @@ func (e *UnsupportedLanguagePairException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *UnsupportedLanguagePairException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "UnsupportedLanguagePairException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/voiceid/types/errors.go b/service/voiceid/types/errors.go
index e7ad19f828a..4008b3b9ff9 100644
--- a/service/voiceid/types/errors.go
+++ b/service/voiceid/types/errors.go
@@ -27,7 +27,7 @@ func (e *AccessDeniedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AccessDeniedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AccessDeniedException"
 	}
 	return *e.ErrorCodeOverride
@@ -56,7 +56,7 @@ func (e *ConflictException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ConflictException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ConflictException"
 	}
 	return *e.ErrorCodeOverride
@@ -82,7 +82,7 @@ func (e *InternalServerException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalServerException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalServerException"
 	}
 	return *e.ErrorCodeOverride
@@ -111,7 +111,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -139,7 +139,7 @@ func (e *ServiceQuotaExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ServiceQuotaExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ServiceQuotaExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -168,7 +168,7 @@ func (e *ThrottlingException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ThrottlingException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ThrottlingException"
 	}
 	return *e.ErrorCodeOverride
@@ -195,7 +195,7 @@ func (e *ValidationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ValidationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ValidationException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/waf/types/errors.go b/service/waf/types/errors.go
index 7e33894b9f1..e8d6ca371e2 100644
--- a/service/waf/types/errors.go
+++ b/service/waf/types/errors.go
@@ -25,7 +25,7 @@ func (e *WAFBadRequestException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *WAFBadRequestException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "WAFBadRequestException"
 	}
 	return *e.ErrorCodeOverride
@@ -51,7 +51,7 @@ func (e *WAFDisallowedNameException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *WAFDisallowedNameException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "WAFDisallowedNameException"
 	}
 	return *e.ErrorCodeOverride
@@ -104,7 +104,7 @@ func (e *WAFEntityMigrationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *WAFEntityMigrationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "WAFEntityMigrationException"
 	}
 	return *e.ErrorCodeOverride
@@ -131,7 +131,7 @@ func (e *WAFInternalErrorException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *WAFInternalErrorException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "WAFInternalErrorException"
 	}
 	return *e.ErrorCodeOverride
@@ -158,7 +158,7 @@ func (e *WAFInvalidAccountException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *WAFInvalidAccountException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "WAFInvalidAccountException"
 	}
 	return *e.ErrorCodeOverride
@@ -201,7 +201,7 @@ func (e *WAFInvalidOperationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *WAFInvalidOperationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "WAFInvalidOperationException"
 	}
 	return *e.ErrorCodeOverride
@@ -260,7 +260,7 @@ func (e *WAFInvalidParameterException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *WAFInvalidParameterException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "WAFInvalidParameterException"
 	}
 	return *e.ErrorCodeOverride
@@ -311,7 +311,7 @@ func (e *WAFInvalidPermissionPolicyException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *WAFInvalidPermissionPolicyException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "WAFInvalidPermissionPolicyException"
 	}
 	return *e.ErrorCodeOverride
@@ -339,7 +339,7 @@ func (e *WAFInvalidRegexPatternException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *WAFInvalidRegexPatternException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "WAFInvalidRegexPatternException"
 	}
 	return *e.ErrorCodeOverride
@@ -368,7 +368,7 @@ func (e *WAFLimitsExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *WAFLimitsExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "WAFLimitsExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -407,7 +407,7 @@ func (e *WAFNonEmptyEntityException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *WAFNonEmptyEntityException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "WAFNonEmptyEntityException"
 	}
 	return *e.ErrorCodeOverride
@@ -447,7 +447,7 @@ func (e *WAFNonexistentContainerException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *WAFNonexistentContainerException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "WAFNonexistentContainerException"
 	}
 	return *e.ErrorCodeOverride
@@ -473,7 +473,7 @@ func (e *WAFNonexistentItemException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *WAFNonexistentItemException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "WAFNonexistentItemException"
 	}
 	return *e.ErrorCodeOverride
@@ -505,7 +505,7 @@ func (e *WAFReferencedItemException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *WAFReferencedItemException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "WAFReferencedItemException"
 	}
 	return *e.ErrorCodeOverride
@@ -538,7 +538,7 @@ func (e *WAFServiceLinkedRoleErrorException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *WAFServiceLinkedRoleErrorException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "WAFServiceLinkedRoleErrorException"
 	}
 	return *e.ErrorCodeOverride
@@ -567,7 +567,7 @@ func (e *WAFStaleDataException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *WAFStaleDataException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "WAFStaleDataException"
 	}
 	return *e.ErrorCodeOverride
@@ -593,7 +593,7 @@ func (e *WAFSubscriptionNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *WAFSubscriptionNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "WAFSubscriptionNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -618,7 +618,7 @@ func (e *WAFTagOperationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *WAFTagOperationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "WAFTagOperationException"
 	}
 	return *e.ErrorCodeOverride
@@ -643,7 +643,7 @@ func (e *WAFTagOperationInternalErrorException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *WAFTagOperationInternalErrorException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "WAFTagOperationInternalErrorException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/wafregional/types/errors.go b/service/wafregional/types/errors.go
index aaa1908b012..826cd2f24a7 100644
--- a/service/wafregional/types/errors.go
+++ b/service/wafregional/types/errors.go
@@ -25,7 +25,7 @@ func (e *WAFBadRequestException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *WAFBadRequestException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "WAFBadRequestException"
 	}
 	return *e.ErrorCodeOverride
@@ -51,7 +51,7 @@ func (e *WAFDisallowedNameException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *WAFDisallowedNameException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "WAFDisallowedNameException"
 	}
 	return *e.ErrorCodeOverride
@@ -104,7 +104,7 @@ func (e *WAFEntityMigrationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *WAFEntityMigrationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "WAFEntityMigrationException"
 	}
 	return *e.ErrorCodeOverride
@@ -131,7 +131,7 @@ func (e *WAFInternalErrorException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *WAFInternalErrorException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "WAFInternalErrorException"
 	}
 	return *e.ErrorCodeOverride
@@ -158,7 +158,7 @@ func (e *WAFInvalidAccountException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *WAFInvalidAccountException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "WAFInvalidAccountException"
 	}
 	return *e.ErrorCodeOverride
@@ -201,7 +201,7 @@ func (e *WAFInvalidOperationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *WAFInvalidOperationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "WAFInvalidOperationException"
 	}
 	return *e.ErrorCodeOverride
@@ -260,7 +260,7 @@ func (e *WAFInvalidParameterException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *WAFInvalidParameterException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "WAFInvalidParameterException"
 	}
 	return *e.ErrorCodeOverride
@@ -311,7 +311,7 @@ func (e *WAFInvalidPermissionPolicyException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *WAFInvalidPermissionPolicyException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "WAFInvalidPermissionPolicyException"
 	}
 	return *e.ErrorCodeOverride
@@ -339,7 +339,7 @@ func (e *WAFInvalidRegexPatternException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *WAFInvalidRegexPatternException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "WAFInvalidRegexPatternException"
 	}
 	return *e.ErrorCodeOverride
@@ -368,7 +368,7 @@ func (e *WAFLimitsExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *WAFLimitsExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "WAFLimitsExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -407,7 +407,7 @@ func (e *WAFNonEmptyEntityException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *WAFNonEmptyEntityException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "WAFNonEmptyEntityException"
 	}
 	return *e.ErrorCodeOverride
@@ -447,7 +447,7 @@ func (e *WAFNonexistentContainerException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *WAFNonexistentContainerException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "WAFNonexistentContainerException"
 	}
 	return *e.ErrorCodeOverride
@@ -473,7 +473,7 @@ func (e *WAFNonexistentItemException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *WAFNonexistentItemException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "WAFNonexistentItemException"
 	}
 	return *e.ErrorCodeOverride
@@ -505,7 +505,7 @@ func (e *WAFReferencedItemException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *WAFReferencedItemException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "WAFReferencedItemException"
 	}
 	return *e.ErrorCodeOverride
@@ -538,7 +538,7 @@ func (e *WAFServiceLinkedRoleErrorException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *WAFServiceLinkedRoleErrorException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "WAFServiceLinkedRoleErrorException"
 	}
 	return *e.ErrorCodeOverride
@@ -567,7 +567,7 @@ func (e *WAFStaleDataException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *WAFStaleDataException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "WAFStaleDataException"
 	}
 	return *e.ErrorCodeOverride
@@ -593,7 +593,7 @@ func (e *WAFSubscriptionNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *WAFSubscriptionNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "WAFSubscriptionNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -618,7 +618,7 @@ func (e *WAFTagOperationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *WAFTagOperationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "WAFTagOperationException"
 	}
 	return *e.ErrorCodeOverride
@@ -643,7 +643,7 @@ func (e *WAFTagOperationInternalErrorException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *WAFTagOperationInternalErrorException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "WAFTagOperationInternalErrorException"
 	}
 	return *e.ErrorCodeOverride
@@ -672,7 +672,7 @@ func (e *WAFUnavailableEntityException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *WAFUnavailableEntityException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "WAFUnavailableEntityException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/wafv2/types/errors.go b/service/wafv2/types/errors.go
index 08bf5fbc63c..2e8e79a1cf0 100644
--- a/service/wafv2/types/errors.go
+++ b/service/wafv2/types/errors.go
@@ -27,7 +27,7 @@ func (e *WAFAssociatedItemException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *WAFAssociatedItemException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "WAFAssociatedItemException"
 	}
 	return *e.ErrorCodeOverride
@@ -61,7 +61,7 @@ func (e *WAFConfigurationWarningException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *WAFConfigurationWarningException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "WAFConfigurationWarningException"
 	}
 	return *e.ErrorCodeOverride
@@ -88,7 +88,7 @@ func (e *WAFDuplicateItemException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *WAFDuplicateItemException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "WAFDuplicateItemException"
 	}
 	return *e.ErrorCodeOverride
@@ -116,7 +116,7 @@ func (e *WAFExpiredManagedRuleGroupVersionException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *WAFExpiredManagedRuleGroupVersionException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "WAFExpiredManagedRuleGroupVersionException"
 	}
 	return *e.ErrorCodeOverride
@@ -145,7 +145,7 @@ func (e *WAFInternalErrorException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *WAFInternalErrorException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "WAFInternalErrorException"
 	}
 	return *e.ErrorCodeOverride
@@ -171,7 +171,7 @@ func (e *WAFInvalidOperationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *WAFInvalidOperationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "WAFInvalidOperationException"
 	}
 	return *e.ErrorCodeOverride
@@ -215,7 +215,7 @@ func (e *WAFInvalidParameterException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *WAFInvalidParameterException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "WAFInvalidParameterException"
 	}
 	return *e.ErrorCodeOverride
@@ -262,7 +262,7 @@ func (e *WAFInvalidPermissionPolicyException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *WAFInvalidPermissionPolicyException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "WAFInvalidPermissionPolicyException"
 	}
 	return *e.ErrorCodeOverride
@@ -291,7 +291,7 @@ func (e *WAFInvalidResourceException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *WAFInvalidResourceException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "WAFInvalidResourceException"
 	}
 	return *e.ErrorCodeOverride
@@ -321,7 +321,7 @@ func (e *WAFLimitsExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *WAFLimitsExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "WAFLimitsExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -350,7 +350,7 @@ func (e *WAFLogDestinationPermissionIssueException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *WAFLogDestinationPermissionIssueException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "WAFLogDestinationPermissionIssueException"
 	}
 	return *e.ErrorCodeOverride
@@ -381,7 +381,7 @@ func (e *WAFNonexistentItemException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *WAFNonexistentItemException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "WAFNonexistentItemException"
 	}
 	return *e.ErrorCodeOverride
@@ -409,7 +409,7 @@ func (e *WAFOptimisticLockException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *WAFOptimisticLockException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "WAFOptimisticLockException"
 	}
 	return *e.ErrorCodeOverride
@@ -442,7 +442,7 @@ func (e *WAFServiceLinkedRoleErrorException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *WAFServiceLinkedRoleErrorException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "WAFServiceLinkedRoleErrorException"
 	}
 	return *e.ErrorCodeOverride
@@ -471,7 +471,7 @@ func (e *WAFSubscriptionNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *WAFSubscriptionNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "WAFSubscriptionNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -497,7 +497,7 @@ func (e *WAFTagOperationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *WAFTagOperationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "WAFTagOperationException"
 	}
 	return *e.ErrorCodeOverride
@@ -524,7 +524,7 @@ func (e *WAFTagOperationInternalErrorException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *WAFTagOperationInternalErrorException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "WAFTagOperationInternalErrorException"
 	}
 	return *e.ErrorCodeOverride
@@ -556,7 +556,7 @@ func (e *WAFUnavailableEntityException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *WAFUnavailableEntityException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "WAFUnavailableEntityException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/wellarchitected/types/errors.go b/service/wellarchitected/types/errors.go
index 5d779e9aa2d..02392ffc230 100644
--- a/service/wellarchitected/types/errors.go
+++ b/service/wellarchitected/types/errors.go
@@ -26,7 +26,7 @@ func (e *AccessDeniedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AccessDeniedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AccessDeniedException"
 	}
 	return *e.ErrorCodeOverride
@@ -55,7 +55,7 @@ func (e *ConflictException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ConflictException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ConflictException"
 	}
 	return *e.ErrorCodeOverride
@@ -81,7 +81,7 @@ func (e *InternalServerException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalServerException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalServerException"
 	}
 	return *e.ErrorCodeOverride
@@ -110,7 +110,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -141,7 +141,7 @@ func (e *ServiceQuotaExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ServiceQuotaExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ServiceQuotaExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -170,7 +170,7 @@ func (e *ThrottlingException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ThrottlingException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ThrottlingException"
 	}
 	return *e.ErrorCodeOverride
@@ -199,7 +199,7 @@ func (e *ValidationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ValidationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ValidationException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/wisdom/types/errors.go b/service/wisdom/types/errors.go
index 1c4925c6013..155928b89db 100644
--- a/service/wisdom/types/errors.go
+++ b/service/wisdom/types/errors.go
@@ -26,7 +26,7 @@ func (e *AccessDeniedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AccessDeniedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AccessDeniedException"
 	}
 	return *e.ErrorCodeOverride
@@ -55,7 +55,7 @@ func (e *ConflictException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ConflictException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ConflictException"
 	}
 	return *e.ErrorCodeOverride
@@ -82,7 +82,7 @@ func (e *PreconditionFailedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *PreconditionFailedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "PreconditionFailedException"
 	}
 	return *e.ErrorCodeOverride
@@ -110,7 +110,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -138,7 +138,7 @@ func (e *ServiceQuotaExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ServiceQuotaExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ServiceQuotaExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -167,7 +167,7 @@ func (e *TooManyTagsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TooManyTagsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TooManyTagsException"
 	}
 	return *e.ErrorCodeOverride
@@ -193,7 +193,7 @@ func (e *ValidationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ValidationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ValidationException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/workdocs/types/errors.go b/service/workdocs/types/errors.go
index d2d0c053bd8..532636edf5e 100644
--- a/service/workdocs/types/errors.go
+++ b/service/workdocs/types/errors.go
@@ -26,7 +26,7 @@ func (e *ConcurrentModificationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ConcurrentModificationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ConcurrentModificationException"
 	}
 	return *e.ErrorCodeOverride
@@ -53,7 +53,7 @@ func (e *ConflictingOperationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ConflictingOperationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ConflictingOperationException"
 	}
 	return *e.ErrorCodeOverride
@@ -80,7 +80,7 @@ func (e *CustomMetadataLimitExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *CustomMetadataLimitExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "CustomMetadataLimitExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -110,7 +110,7 @@ func (e *DeactivatingLastSystemUserException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DeactivatingLastSystemUserException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DeactivatingLastSystemUserException"
 	}
 	return *e.ErrorCodeOverride
@@ -139,7 +139,7 @@ func (e *DocumentLockedForCommentsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DocumentLockedForCommentsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DocumentLockedForCommentsException"
 	}
 	return *e.ErrorCodeOverride
@@ -168,7 +168,7 @@ func (e *DraftUploadOutOfSyncException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DraftUploadOutOfSyncException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DraftUploadOutOfSyncException"
 	}
 	return *e.ErrorCodeOverride
@@ -194,7 +194,7 @@ func (e *EntityAlreadyExistsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *EntityAlreadyExistsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "EntityAlreadyExistsException"
 	}
 	return *e.ErrorCodeOverride
@@ -222,7 +222,7 @@ func (e *EntityNotExistsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *EntityNotExistsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "EntityNotExistsException"
 	}
 	return *e.ErrorCodeOverride
@@ -250,7 +250,7 @@ func (e *FailedDependencyException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *FailedDependencyException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "FailedDependencyException"
 	}
 	return *e.ErrorCodeOverride
@@ -276,7 +276,7 @@ func (e *IllegalUserStateException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *IllegalUserStateException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "IllegalUserStateException"
 	}
 	return *e.ErrorCodeOverride
@@ -302,7 +302,7 @@ func (e *InvalidArgumentException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidArgumentException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidArgumentException"
 	}
 	return *e.ErrorCodeOverride
@@ -328,7 +328,7 @@ func (e *InvalidCommentOperationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidCommentOperationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidCommentOperationException"
 	}
 	return *e.ErrorCodeOverride
@@ -354,7 +354,7 @@ func (e *InvalidOperationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidOperationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidOperationException"
 	}
 	return *e.ErrorCodeOverride
@@ -380,7 +380,7 @@ func (e *InvalidPasswordException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidPasswordException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidPasswordException"
 	}
 	return *e.ErrorCodeOverride
@@ -407,7 +407,7 @@ func (e *LimitExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *LimitExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "LimitExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -433,7 +433,7 @@ func (e *ProhibitedStateException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ProhibitedStateException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ProhibitedStateException"
 	}
 	return *e.ErrorCodeOverride
@@ -460,7 +460,7 @@ func (e *RequestedEntityTooLargeException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *RequestedEntityTooLargeException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "RequestedEntityTooLargeException"
 	}
 	return *e.ErrorCodeOverride
@@ -486,7 +486,7 @@ func (e *ResourceAlreadyCheckedOutException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceAlreadyCheckedOutException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceAlreadyCheckedOutException"
 	}
 	return *e.ErrorCodeOverride
@@ -514,7 +514,7 @@ func (e *ServiceUnavailableException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ServiceUnavailableException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ServiceUnavailableException"
 	}
 	return *e.ErrorCodeOverride
@@ -540,7 +540,7 @@ func (e *StorageLimitExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *StorageLimitExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "StorageLimitExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -566,7 +566,7 @@ func (e *StorageLimitWillExceedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *StorageLimitWillExceedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "StorageLimitWillExceedException"
 	}
 	return *e.ErrorCodeOverride
@@ -592,7 +592,7 @@ func (e *TooManyLabelsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TooManyLabelsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TooManyLabelsException"
 	}
 	return *e.ErrorCodeOverride
@@ -619,7 +619,7 @@ func (e *TooManySubscriptionsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TooManySubscriptionsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TooManySubscriptionsException"
 	}
 	return *e.ErrorCodeOverride
@@ -647,7 +647,7 @@ func (e *UnauthorizedOperationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *UnauthorizedOperationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "UnauthorizedOperationException"
 	}
 	return *e.ErrorCodeOverride
@@ -673,7 +673,7 @@ func (e *UnauthorizedResourceAccessException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *UnauthorizedResourceAccessException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "UnauthorizedResourceAccessException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/worklink/types/errors.go b/service/worklink/types/errors.go
index 65effe1986d..bde908c98eb 100644
--- a/service/worklink/types/errors.go
+++ b/service/worklink/types/errors.go
@@ -26,7 +26,7 @@ func (e *InternalServerErrorException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalServerErrorException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalServerErrorException"
 	}
 	return *e.ErrorCodeOverride
@@ -52,7 +52,7 @@ func (e *InvalidRequestException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidRequestException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidRequestException"
 	}
 	return *e.ErrorCodeOverride
@@ -78,7 +78,7 @@ func (e *ResourceAlreadyExistsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceAlreadyExistsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceAlreadyExistsException"
 	}
 	return *e.ErrorCodeOverride
@@ -104,7 +104,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -130,7 +130,7 @@ func (e *TooManyRequestsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TooManyRequestsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TooManyRequestsException"
 	}
 	return *e.ErrorCodeOverride
@@ -156,7 +156,7 @@ func (e *UnauthorizedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *UnauthorizedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "UnauthorizedException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/workmail/types/errors.go b/service/workmail/types/errors.go
index 478bd029890..d2e79628244 100644
--- a/service/workmail/types/errors.go
+++ b/service/workmail/types/errors.go
@@ -27,7 +27,7 @@ func (e *DirectoryInUseException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DirectoryInUseException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DirectoryInUseException"
 	}
 	return *e.ErrorCodeOverride
@@ -53,7 +53,7 @@ func (e *DirectoryServiceAuthenticationFailedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DirectoryServiceAuthenticationFailedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DirectoryServiceAuthenticationFailedException"
 	}
 	return *e.ErrorCodeOverride
@@ -81,7 +81,7 @@ func (e *DirectoryUnavailableException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *DirectoryUnavailableException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "DirectoryUnavailableException"
 	}
 	return *e.ErrorCodeOverride
@@ -108,7 +108,7 @@ func (e *EmailAddressInUseException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *EmailAddressInUseException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "EmailAddressInUseException"
 	}
 	return *e.ErrorCodeOverride
@@ -135,7 +135,7 @@ func (e *EntityAlreadyRegisteredException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *EntityAlreadyRegisteredException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "EntityAlreadyRegisteredException"
 	}
 	return *e.ErrorCodeOverride
@@ -162,7 +162,7 @@ func (e *EntityNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *EntityNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "EntityNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -189,7 +189,7 @@ func (e *EntityStateException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *EntityStateException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "EntityStateException"
 	}
 	return *e.ErrorCodeOverride
@@ -217,7 +217,7 @@ func (e *InvalidConfigurationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidConfigurationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidConfigurationException"
 	}
 	return *e.ErrorCodeOverride
@@ -246,7 +246,7 @@ func (e *InvalidCustomSesConfigurationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidCustomSesConfigurationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidCustomSesConfigurationException"
 	}
 	return *e.ErrorCodeOverride
@@ -274,7 +274,7 @@ func (e *InvalidParameterException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidParameterException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidParameterException"
 	}
 	return *e.ErrorCodeOverride
@@ -301,7 +301,7 @@ func (e *InvalidPasswordException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidPasswordException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidPasswordException"
 	}
 	return *e.ErrorCodeOverride
@@ -327,7 +327,7 @@ func (e *LimitExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *LimitExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "LimitExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -354,7 +354,7 @@ func (e *MailDomainInUseException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *MailDomainInUseException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "MailDomainInUseException"
 	}
 	return *e.ErrorCodeOverride
@@ -380,7 +380,7 @@ func (e *MailDomainNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *MailDomainNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "MailDomainNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -407,7 +407,7 @@ func (e *MailDomainStateException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *MailDomainStateException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "MailDomainStateException"
 	}
 	return *e.ErrorCodeOverride
@@ -433,7 +433,7 @@ func (e *NameAvailabilityException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *NameAvailabilityException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "NameAvailabilityException"
 	}
 	return *e.ErrorCodeOverride
@@ -460,7 +460,7 @@ func (e *OrganizationNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *OrganizationNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "OrganizationNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -487,7 +487,7 @@ func (e *OrganizationStateException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *OrganizationStateException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "OrganizationStateException"
 	}
 	return *e.ErrorCodeOverride
@@ -513,7 +513,7 @@ func (e *ReservedNameException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ReservedNameException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ReservedNameException"
 	}
 	return *e.ErrorCodeOverride
@@ -539,7 +539,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -565,7 +565,7 @@ func (e *TooManyTagsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TooManyTagsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TooManyTagsException"
 	}
 	return *e.ErrorCodeOverride
@@ -591,7 +591,7 @@ func (e *UnsupportedOperationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *UnsupportedOperationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "UnsupportedOperationException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/workmailmessageflow/types/errors.go b/service/workmailmessageflow/types/errors.go
index e78b2d0fd81..2a2eb377d59 100644
--- a/service/workmailmessageflow/types/errors.go
+++ b/service/workmailmessageflow/types/errors.go
@@ -40,7 +40,7 @@ func (e *InvalidContentLocation) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidContentLocation) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidContentLocation"
 	}
 	return *e.ErrorCodeOverride
@@ -67,7 +67,7 @@ func (e *MessageFrozen) ErrorMessage() string {
 	return *e.Message
 }
 func (e *MessageFrozen) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "MessageFrozen"
 	}
 	return *e.ErrorCodeOverride
@@ -94,7 +94,7 @@ func (e *MessageRejected) ErrorMessage() string {
 	return *e.Message
 }
 func (e *MessageRejected) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "MessageRejected"
 	}
 	return *e.ErrorCodeOverride
@@ -120,7 +120,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/workspaces/types/errors.go b/service/workspaces/types/errors.go
index 396fc167bf3..b9688fa0f5b 100644
--- a/service/workspaces/types/errors.go
+++ b/service/workspaces/types/errors.go
@@ -26,7 +26,7 @@ func (e *AccessDeniedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AccessDeniedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AccessDeniedException"
 	}
 	return *e.ErrorCodeOverride
@@ -52,7 +52,7 @@ func (e *InvalidParameterValuesException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidParameterValuesException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidParameterValuesException"
 	}
 	return *e.ErrorCodeOverride
@@ -78,7 +78,7 @@ func (e *InvalidResourceStateException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidResourceStateException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidResourceStateException"
 	}
 	return *e.ErrorCodeOverride
@@ -105,7 +105,7 @@ func (e *OperationInProgressException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *OperationInProgressException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "OperationInProgressException"
 	}
 	return *e.ErrorCodeOverride
@@ -133,7 +133,7 @@ func (e *OperationNotSupportedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *OperationNotSupportedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "OperationNotSupportedException"
 	}
 	return *e.ErrorCodeOverride
@@ -159,7 +159,7 @@ func (e *ResourceAlreadyExistsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceAlreadyExistsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceAlreadyExistsException"
 	}
 	return *e.ErrorCodeOverride
@@ -185,7 +185,7 @@ func (e *ResourceAssociatedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceAssociatedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceAssociatedException"
 	}
 	return *e.ErrorCodeOverride
@@ -211,7 +211,7 @@ func (e *ResourceCreationFailedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceCreationFailedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceCreationFailedException"
 	}
 	return *e.ErrorCodeOverride
@@ -237,7 +237,7 @@ func (e *ResourceLimitExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceLimitExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceLimitExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -265,7 +265,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -293,7 +293,7 @@ func (e *ResourceUnavailableException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceUnavailableException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceUnavailableException"
 	}
 	return *e.ErrorCodeOverride
@@ -322,7 +322,7 @@ func (e *UnsupportedNetworkConfigurationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *UnsupportedNetworkConfigurationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "UnsupportedNetworkConfigurationException"
 	}
 	return *e.ErrorCodeOverride
@@ -353,7 +353,7 @@ func (e *UnsupportedWorkspaceConfigurationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *UnsupportedWorkspaceConfigurationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "UnsupportedWorkspaceConfigurationException"
 	}
 	return *e.ErrorCodeOverride
@@ -385,7 +385,7 @@ func (e *WorkspacesDefaultRoleNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *WorkspacesDefaultRoleNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "WorkspacesDefaultRoleNotFoundException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/workspacesweb/types/errors.go b/service/workspacesweb/types/errors.go
index 0195c58632e..694391897cc 100644
--- a/service/workspacesweb/types/errors.go
+++ b/service/workspacesweb/types/errors.go
@@ -26,7 +26,7 @@ func (e *AccessDeniedException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *AccessDeniedException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "AccessDeniedException"
 	}
 	return *e.ErrorCodeOverride
@@ -55,7 +55,7 @@ func (e *ConflictException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ConflictException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ConflictException"
 	}
 	return *e.ErrorCodeOverride
@@ -83,7 +83,7 @@ func (e *InternalServerException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InternalServerException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InternalServerException"
 	}
 	return *e.ErrorCodeOverride
@@ -112,7 +112,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -143,7 +143,7 @@ func (e *ServiceQuotaExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ServiceQuotaExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ServiceQuotaExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -173,7 +173,7 @@ func (e *ThrottlingException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ThrottlingException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ThrottlingException"
 	}
 	return *e.ErrorCodeOverride
@@ -201,7 +201,7 @@ func (e *TooManyTagsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TooManyTagsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TooManyTagsException"
 	}
 	return *e.ErrorCodeOverride
@@ -230,7 +230,7 @@ func (e *ValidationException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ValidationException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ValidationException"
 	}
 	return *e.ErrorCodeOverride
diff --git a/service/xray/types/errors.go b/service/xray/types/errors.go
index a90cfecfedf..39a157a5904 100644
--- a/service/xray/types/errors.go
+++ b/service/xray/types/errors.go
@@ -28,7 +28,7 @@ func (e *InvalidPolicyRevisionIdException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidPolicyRevisionIdException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidPolicyRevisionIdException"
 	}
 	return *e.ErrorCodeOverride
@@ -54,7 +54,7 @@ func (e *InvalidRequestException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *InvalidRequestException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "InvalidRequestException"
 	}
 	return *e.ErrorCodeOverride
@@ -81,7 +81,7 @@ func (e *LockoutPreventionException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *LockoutPreventionException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "LockoutPreventionException"
 	}
 	return *e.ErrorCodeOverride
@@ -107,7 +107,7 @@ func (e *MalformedPolicyDocumentException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *MalformedPolicyDocumentException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "MalformedPolicyDocumentException"
 	}
 	return *e.ErrorCodeOverride
@@ -134,7 +134,7 @@ func (e *PolicyCountLimitExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *PolicyCountLimitExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "PolicyCountLimitExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -160,7 +160,7 @@ func (e *PolicySizeLimitExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *PolicySizeLimitExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "PolicySizeLimitExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -189,7 +189,7 @@ func (e *ResourceNotFoundException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ResourceNotFoundException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ResourceNotFoundException"
 	}
 	return *e.ErrorCodeOverride
@@ -215,7 +215,7 @@ func (e *RuleLimitExceededException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *RuleLimitExceededException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "RuleLimitExceededException"
 	}
 	return *e.ErrorCodeOverride
@@ -241,7 +241,7 @@ func (e *ThrottledException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *ThrottledException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "ThrottledException"
 	}
 	return *e.ErrorCodeOverride
@@ -269,7 +269,7 @@ func (e *TooManyTagsException) ErrorMessage() string {
 	return *e.Message
 }
 func (e *TooManyTagsException) ErrorCode() string {
-	if e.ErrorCodeOverride == nil {
+	if e == nil || e.ErrorCodeOverride == nil {
 		return "TooManyTagsException"
 	}
 	return *e.ErrorCodeOverride