diff --git a/CHANGELOG.md b/CHANGELOG.md
index e69de29b..47720b61 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -0,0 +1,164 @@
+# Change Log
+
+## [0.12.4](https://github.com/bunq/sdk_php/tree/0.12.4) (2017-12-21)
+[Full Changelog](https://github.com/bunq/sdk_php/compare/0.12.3...0.12.4)
+
+**Implemented enhancements:**
+
+- Introduce fromJson method.  [\#84](https://github.com/bunq/sdk_php/issues/84)
+- Make sure received signatures headers are correctly cased [\#75](https://github.com/bunq/sdk_php/issues/75)
+- Return base class from createFromJsonString [\#73](https://github.com/bunq/sdk_php/issues/73)
+- CHANGELOG.md is empty  [\#71](https://github.com/bunq/sdk_php/issues/71)
+- Improve decoder to recognise child objects  [\#68](https://github.com/bunq/sdk_php/issues/68)
+- Return static. \(bunq/sdk\_php\#73\) [\#74](https://github.com/bunq/sdk_php/pull/74) ([OGKevin](https://github.com/OGKevin))
+- Generated CHANGELOG.md :clap:. \(bunq/sdk\_php\#71\) [\#72](https://github.com/bunq/sdk_php/pull/72) ([OGKevin](https://github.com/OGKevin))
+
+**Fixed bugs:**
+
+- Fatal error in the interactive installer when no allowed IP is given [\#79](https://github.com/bunq/sdk_php/issues/79)
+- Fatal when using MonetaryAccountBank class  [\#38](https://github.com/bunq/sdk_php/issues/38)
+- Add specific php version to composer. \(bunq/sdk\_php\#38\) [\#77](https://github.com/bunq/sdk_php/pull/77) ([OGKevin](https://github.com/OGKevin))
+
+**Merged pull requests:**
+
+- Feature/make sure headers are correctly cased bunq/sdk php\#75 [\#85](https://github.com/bunq/sdk_php/pull/85) ([OGKevin](https://github.com/OGKevin))
+- Feature/decode child object in parent object bunq/sdk php\#68 [\#83](https://github.com/bunq/sdk_php/pull/83) ([OGKevin](https://github.com/OGKevin))
+- Allow permitted IPs to be null in the interactive installer [\#78](https://github.com/bunq/sdk_php/pull/78) ([mbernson](https://github.com/mbernson))
+
+## [0.12.3](https://github.com/bunq/sdk_php/tree/0.12.3) (2017-11-15)
+[Full Changelog](https://github.com/bunq/sdk_php/compare/0.12.2...0.12.3)
+
+**Implemented enhancements:**
+
+- Callback models for holding callback data. [\#67](https://github.com/bunq/sdk_php/issues/67)
+
+**Fixed bugs:**
+
+- Scheduled payments are not decoded because of a typo [\#70](https://github.com/bunq/sdk_php/issues/70)
+
+**Merged pull requests:**
+
+- Feature/callback models \#67 [\#69](https://github.com/bunq/sdk_php/pull/69) ([OGKevin](https://github.com/OGKevin))
+
+## [0.12.2](https://github.com/bunq/sdk_php/tree/0.12.2) (2017-11-08)
+[Full Changelog](https://github.com/bunq/sdk_php/compare/0.12.1...0.12.2)
+
+**Implemented enhancements:**
+
+- Add missing fields for cvc endpoint  [\#64](https://github.com/bunq/sdk_php/issues/64)
+- Missing CARD GENERATED CVC2 endpoint [\#61](https://github.com/bunq/sdk_php/issues/61)
+- More flexibility for sessionContext handling [\#58](https://github.com/bunq/sdk_php/issues/58)
+- Added cvc\_endpoint. \#61 [\#62](https://github.com/bunq/sdk_php/pull/62) ([OGKevin](https://github.com/OGKevin))
+- Feature/is expired\#58 [\#59](https://github.com/bunq/sdk_php/pull/59) ([OGKevin](https://github.com/OGKevin))
+
+**Fixed bugs:**
+
+- Getting a DraftPayment that has been ACCEPTED results in an error [\#63](https://github.com/bunq/sdk_php/issues/63)
+
+**Merged pull requests:**
+
+- Feature/fix draft payment object \#63 [\#66](https://github.com/bunq/sdk_php/pull/66) ([OGKevin](https://github.com/OGKevin))
+- Feature/add missing cvc fields \#64 [\#65](https://github.com/bunq/sdk_php/pull/65) ([OGKevin](https://github.com/OGKevin))
+
+## [0.12.1](https://github.com/bunq/sdk_php/tree/0.12.1) (2017-10-11)
+[Full Changelog](https://github.com/bunq/sdk_php/compare/0.12.0...0.12.1)
+
+**Fixed bugs:**
+
+- toJson\(\) fails on ApiContext of an user person due to session context [\#56](https://github.com/bunq/sdk_php/issues/56)
+
+**Merged pull requests:**
+
+- toJson\(\) fails on ApiContext of an user person due to session context [\#57](https://github.com/bunq/sdk_php/pull/57) ([DennisSnijder](https://github.com/DennisSnijder))
+
+## [0.12.0](https://github.com/bunq/sdk_php/tree/0.12.0) (2017-10-11)
+[Full Changelog](https://github.com/bunq/sdk_php/compare/0.11.0...0.12.0)
+
+**Implemented enhancements:**
+
+- Add strictly typed BunqResponses [\#52](https://github.com/bunq/sdk_php/issues/52)
+- Better error handling  [\#49](https://github.com/bunq/sdk_php/issues/49)
+- End support for PHP 5.6 [\#44](https://github.com/bunq/sdk_php/issues/44)
+- Add strictly typed responses; fix GET in extended models \[\#52\] [\#53](https://github.com/bunq/sdk_php/pull/53) ([dnl-blkv](https://github.com/dnl-blkv))
+- Feature/exception factory [\#50](https://github.com/bunq/sdk_php/pull/50) ([OGKevin](https://github.com/OGKevin))
+- Marked all files in generated dir as generated code. [\#47](https://github.com/bunq/sdk_php/pull/47) ([OGKevin](https://github.com/OGKevin))
+
+**Fixed bugs:**
+
+- User::get returns empty object? [\#51](https://github.com/bunq/sdk_php/issues/51)
+- Error retrieving pinned certificates [\#14](https://github.com/bunq/sdk_php/issues/14)
+
+**Merged pull requests:**
+
+- cleanup after 52-strict-response [\#55](https://github.com/bunq/sdk_php/pull/55) ([dnl-blkv](https://github.com/dnl-blkv))
+- !== instead of !=  [\#54](https://github.com/bunq/sdk_php/pull/54) ([OGKevin](https://github.com/OGKevin))
+- Added PHPStan and script to run "composer phpstan" [\#48](https://github.com/bunq/sdk_php/pull/48) ([holtkamp](https://github.com/holtkamp))
+
+## [0.11.0](https://github.com/bunq/sdk_php/tree/0.11.0) (2017-09-06)
+[Full Changelog](https://github.com/bunq/sdk_php/compare/0.10.0...0.11.0)
+
+**Implemented enhancements:**
+
+- Ignore generated code for reviews [\#45](https://github.com/bunq/sdk_php/issues/45)
+- Pagination and limit is missing for listing methods [\#15](https://github.com/bunq/sdk_php/issues/15)
+- Updated git attributes. [\#46](https://github.com/bunq/sdk_php/pull/46) ([OGKevin](https://github.com/OGKevin))
+- Add Pagination and missing fields/endpoints \[\#15\] [\#43](https://github.com/bunq/sdk_php/pull/43) ([dnl-blkv](https://github.com/dnl-blkv))
+
+## [0.10.0](https://github.com/bunq/sdk_php/tree/0.10.0) (2017-08-22)
+[Full Changelog](https://github.com/bunq/sdk_php/compare/0.9.1...0.10.0)
+
+**Implemented enhancements:**
+
+- Allow saving context to JSON and restoring from it [\#39](https://github.com/bunq/sdk_php/issues/39)
+- Response is missing response headers and pagination [\#33](https://github.com/bunq/sdk_php/issues/33)
+- Allow to configure Guzzle options / use a proxy to ensure static IP address [\#5](https://github.com/bunq/sdk_php/issues/5)
+- Cleanup; add toJson and fromJson to ApiContext \[\#39\] [\#40](https://github.com/bunq/sdk_php/pull/40) ([dnl-blkv](https://github.com/dnl-blkv))
+- \#33 bunq response [\#34](https://github.com/bunq/sdk_php/pull/34) ([dnl-blkv](https://github.com/dnl-blkv))
+- \#5 Allow setting a proxy [\#27](https://github.com/bunq/sdk_php/pull/27) ([qurben](https://github.com/qurben))
+- Introduction of Grumphp [\#24](https://github.com/bunq/sdk_php/pull/24) ([cafferata](https://github.com/cafferata))
+
+**Fixed bugs:**
+
+- Error in api context script [\#36](https://github.com/bunq/sdk_php/issues/36)
+
+**Merged pull requests:**
+
+- Fixes \#36 on php5.6 [\#37](https://github.com/bunq/sdk_php/pull/37) ([OGKevin](https://github.com/OGKevin))
+- Added an .gitattributes file. [\#20](https://github.com/bunq/sdk_php/pull/20) ([cafferata](https://github.com/cafferata))
+
+## [0.9.1](https://github.com/bunq/sdk_php/tree/0.9.1) (2017-08-07)
+**Implemented enhancements:**
+
+- Remove phpstan [\#28](https://github.com/bunq/sdk_php/issues/28)
+- Suggestion: use Objects instead of arrays [\#22](https://github.com/bunq/sdk_php/issues/22)
+- Changes the composer PHP requirement [\#19](https://github.com/bunq/sdk_php/pull/19) ([cafferata](https://github.com/cafferata))
+- Removed the default PHPStorm constructor header\(s\) [\#18](https://github.com/bunq/sdk_php/pull/18) ([cafferata](https://github.com/cafferata))
+- Add readme for tests. [\#16](https://github.com/bunq/sdk_php/pull/16) ([OGKevin](https://github.com/OGKevin))
+- Restructure project [\#12](https://github.com/bunq/sdk_php/pull/12) ([LauLaman](https://github.com/LauLaman))
+- Add PHP-CS and PHPStan dependencies and scripts to execute [\#3](https://github.com/bunq/sdk_php/pull/3) ([holtkamp](https://github.com/holtkamp))
+- Add first series of unit-tests [\#1](https://github.com/bunq/sdk_php/pull/1) ([OGKevin](https://github.com/OGKevin))
+
+**Fixed bugs:**
+
+- User Agent header generation is broken in ApiClient [\#30](https://github.com/bunq/sdk_php/issues/30)
+- Scripts in composer.json are broken [\#25](https://github.com/bunq/sdk_php/issues/25)
+- public.api.bunq.com is using wrong certificate [\#11](https://github.com/bunq/sdk_php/issues/11)
+- SessionContext is missing timeout for UserPerson [\#10](https://github.com/bunq/sdk_php/issues/10)
+- SDK not working on Windows \(XAMPP\) [\#8](https://github.com/bunq/sdk_php/issues/8)
+- Curl error "Invalid certificate chain" when running `vendor/bin/bunq-install` [\#6](https://github.com/bunq/sdk_php/issues/6)
+
+**Closed issues:**
+
+- Incorrect composer.json / authors sections [\#2](https://github.com/bunq/sdk_php/issues/2)
+
+**Merged pull requests:**
+
+- Fix user agent generation in ApiClient [\#31](https://github.com/bunq/sdk_php/pull/31) ([dnl-blkv](https://github.com/dnl-blkv))
+- \#28 remove phpstan as it does not support php 5.6 [\#29](https://github.com/bunq/sdk_php/pull/29) ([qurben](https://github.com/qurben))
+- \#25 Update directory for composer scripts, also omit version. [\#26](https://github.com/bunq/sdk_php/pull/26) ([qurben](https://github.com/qurben))
+- Updated composer.lock [\#23](https://github.com/bunq/sdk_php/pull/23) ([cafferata](https://github.com/cafferata))
+- Fixed signature newline handling \(Windows\) [\#9](https://github.com/bunq/sdk_php/pull/9) ([BabyDino](https://github.com/BabyDino))
+
+
+
+\* *This Change Log was automatically generated by [github_changelog_generator](https://github.com/skywinder/Github-Changelog-Generator)*
\ No newline at end of file
diff --git a/composer.json b/composer.json
index 11b82d18..9c45ded0 100644
--- a/composer.json
+++ b/composer.json
@@ -20,7 +20,7 @@
         }
     ],
     "require": {
-        "php": "^7.0",
+        "php": "^7.0.13",
         "ext-curl": "*",
         "ext-json": "*",
         "ext-mbstring": "*",
diff --git a/src/Http/ApiClient.php b/src/Http/ApiClient.php
index a01fa1f3..1060f534 100644
--- a/src/Http/ApiClient.php
+++ b/src/Http/ApiClient.php
@@ -71,7 +71,7 @@ class ApiClient
     /**
      * User agent constants.
      */
-    const HEADER_USER_AGENT_BUNQ_SDK_DEFAULT = 'bunq-sdk-php/0.11.0';
+    const HEADER_USER_AGENT_BUNQ_SDK_DEFAULT = 'bunq-sdk-php/0.12.4';
 
     /**
      * Binary request constants.
diff --git a/src/Http/Handler/ResponseHandlerSignature.php b/src/Http/Handler/ResponseHandlerSignature.php
index 3a33c62e..7ca69f5b 100644
--- a/src/Http/Handler/ResponseHandlerSignature.php
+++ b/src/Http/Handler/ResponseHandlerSignature.php
@@ -23,6 +23,18 @@ class ResponseHandlerSignature extends ResponseHandlerBase
     const HEADER_SEPARATOR = ', ';
     const FORMAT_HEADER = '%s: %s';
 
+    /**
+     * Regex constants.
+     */
+    const REGEX_FOR_LOWERCASE_HEADERS = '/-([a-z])/';
+    const REGEX_REPLACE = '/%s/';
+    const REGEX_CHECK_FAILED = '0';
+
+    /**
+     * The index of the first item in an array.
+     */
+    const INDEX_FIRST = 0;
+
     /**
      * Http status constants.
      */
@@ -95,6 +107,8 @@ private function determineHeaderStringForSignedResponse(array $headers)
 
         foreach ($headers as $headerName => $headerValue) {
             // All headers with the prefix 'X-Bunq-' except 'Server-Signature' need to be signed.
+            $headerName = $this->ensureHeaderIsCorrectlyCased($headerName);
+
             if ($headerName === self::HEADER_SERVER_SIGNATURE) {
                 // Skip this header
             } elseif (strpos($headerName, self::HEADER_PREFIX) === self::HEADER_PREFIX_START) {
@@ -105,6 +119,26 @@ private function determineHeaderStringForSignedResponse(array $headers)
         return implode(self::NEWLINE, $signedDataHeaders);
     }
 
+    /**
+     * @param string $headerName
+     *
+     * @return string
+     */
+    private function ensureHeaderIsCorrectlyCased(string $headerName)
+    {
+        $headerName = ucfirst($headerName);
+        $regexResult = preg_match_all(self::REGEX_FOR_LOWERCASE_HEADERS, $headerName, $matches);
+
+        if ($regexResult != self::REGEX_CHECK_FAILED) {
+            foreach ($matches[self::INDEX_FIRST] as $match) {
+                $matchUpper = strtoupper($match);
+                $headerName = preg_replace(vsprintf(self::REGEX_REPLACE, $match), $matchUpper, $headerName);
+            }
+        }
+
+        return $headerName;
+    }
+
     /**
      * @param string $headerName
      * @param string[] $headerValue
diff --git a/src/Model/Core/AnchorObjectInterface.php b/src/Model/Core/AnchorObjectInterface.php
new file mode 100644
index 00000000..eaf2a6a7
--- /dev/null
+++ b/src/Model/Core/AnchorObjectInterface.php
@@ -0,0 +1,9 @@
+<?php
+namespace bunq\Model\Core;
+
+/**
+ */
+interface AnchorObjectInterface
+{
+
+}
diff --git a/src/Model/Core/BunqModel.php b/src/Model/Core/BunqModel.php
index d22038ba..b5a0c3d9 100644
--- a/src/Model/Core/BunqModel.php
+++ b/src/Model/Core/BunqModel.php
@@ -42,6 +42,13 @@ abstract class BunqModel implements JsonSerializable
      */
     const INDEX_FIRST = 0;
 
+    /**
+     * Depth counter constants.
+     */
+    const DEPTH_COUNTER_BEGIN = 0;
+    const DEPTH_COUNTER_MAX = 2;
+    const DEPTH_COUNTER_INCREMENTER = 1;
+
     /**
      * Type constants.
      */
@@ -49,10 +56,12 @@ abstract class BunqModel implements JsonSerializable
     const SCALAR_TYPE_BOOL = 'bool';
     const SCALAR_TYPE_INT = 'int';
     const SCALAR_TYPE_FLOAT = 'float';
+
     /**
      * @var string[]
      */
     protected static $fieldNameOverrideMap = [];
+
     /**
      * Set of the PHP scalar types. Mimicking a constant, and therefore should be used with self::.
      *
@@ -87,7 +96,7 @@ protected static function fromJsonList(
     /**
      * @param string $json
      *
-     * @return BunqModel
+     * @return static
      */
     public static function createFromJsonString(string $json): BunqModel
     {
@@ -96,6 +105,11 @@ public static function createFromJsonString(string $json): BunqModel
         return static::createFromResponseArray($responseArray);
     }
 
+    /**
+     * @return bool
+     */
+    abstract protected function isAllFieldNull();
+
     /**
      * @param mixed[] $responseArray
      * @param string $wrapper
@@ -121,17 +135,86 @@ protected static function createListFromResponseArray(
      *
      * @return BunqModel|null
      */
-    protected static function createFromResponseArray(array $responseArray, string $wrapper = null)
-    {
+    protected static function createFromResponseArray(
+        array $responseArray,
+        string $wrapper = null
+    ) {
+        if (is_subclass_of(get_called_class(), AnchorObjectInterface::class)) {
+            return self::createFromResponseArrayAnchorObject($responseArray);
+        }
+
         if (is_string($wrapper)) {
             $responseArray = $responseArray[$wrapper];
         }
 
-        if (is_null($responseArray)) {
+        if (empty($responseArray)) {
             return null;
-        } else {
-            return self::createInstanceFromResponseArray($responseArray);
         }
+
+        return self::createInstanceFromResponseArray($responseArray);
+    }
+
+    /**
+     * @param mixed[] $responseArray
+     * @param int|null $depthCounter
+     *
+     * @return BunqModel|null
+     */
+    private static function createFromResponseArrayAnchorObject(
+        array $responseArray,
+        int $depthCounter = null
+    ) {
+        if (empty($responseArray)) {
+            return null;
+        }
+
+        if (is_null($depthCounter)) {
+            $depthCounter = self::DEPTH_COUNTER_BEGIN;
+        }
+
+        $model = self::createInstanceFromResponseArray($responseArray);
+
+        if ($model->isAllFieldNull() && $depthCounter < self::DEPTH_COUNTER_MAX) {
+            $model = self::decodeInsideModelFields($responseArray, $model, $depthCounter);
+        }
+
+        return $model;
+    }
+
+    /**
+     * @param mixed[] $responseArray
+     * @param BunqModel $model
+     * @param int $depthCounter
+     *
+     * @return BunqModel
+     */
+    private static function decodeInsideModelFields(array $responseArray, BunqModel $model, int $depthCounter)
+    {
+        $modelFields = (array_keys(get_object_vars($model)));
+
+        foreach ($modelFields as $field) {
+            $fieldClass = ModelUtil::getModelClassNameQualifiedOrNull($field);
+
+            if (is_null($fieldClass)) {
+                continue;
+            }
+
+            $reflectionClass = new ReflectionClass($fieldClass);
+            /** @var BunqModel $bunqModelSubClass */
+            $bunqModelSubClass = $reflectionClass->newInstanceWithoutConstructor();
+            $fieldContents = $bunqModelSubClass::createFromResponseArrayAnchorObject(
+                $responseArray,
+                $depthCounter + self::DEPTH_COUNTER_INCREMENTER
+            );
+
+            if ($fieldContents->isAllFieldNull()) {
+                $model->{$field} = null;
+            } else {
+                $model->{$field} = $fieldContents;
+            }
+        }
+
+        return $model;
     }
 
     /**
diff --git a/src/Model/Core/Id.php b/src/Model/Core/Id.php
index e8f41eaa..a055e527 100644
--- a/src/Model/Core/Id.php
+++ b/src/Model/Core/Id.php
@@ -17,4 +17,16 @@ public function getId(): int
     {
         return $this->id;
     }
+
+    /**
+     * @return bool
+     */
+    protected function isAllFieldNull()
+    {
+        if (!is_null($this->id)) {
+            return false;
+        }
+
+        return true;
+    }
 }
diff --git a/src/Model/Core/Installation.php b/src/Model/Core/Installation.php
index 15bb284b..97171139 100644
--- a/src/Model/Core/Installation.php
+++ b/src/Model/Core/Installation.php
@@ -105,4 +105,28 @@ public function jsonSerialize(): array
             self::FIELD_CLIENT_PUBLIC_KEY => $this->clientPublicKey,
         ];
     }
+
+    /**
+     * @return bool
+     */
+    protected function isAllFieldNull()
+    {
+        if (!is_null($this->id)) {
+            return false;
+        }
+
+        if (!is_null($this->token)) {
+            return false;
+        }
+
+        if (!is_null($this->serverPublicKey)) {
+            return false;
+        }
+
+        if (!is_null($this->clientPublicKey)) {
+            return false;
+        }
+
+        return true;
+    }
 }
diff --git a/src/Model/Core/ServerPublicKey.php b/src/Model/Core/ServerPublicKey.php
index 9eaaa071..883563f2 100644
--- a/src/Model/Core/ServerPublicKey.php
+++ b/src/Model/Core/ServerPublicKey.php
@@ -39,8 +39,24 @@ public function getServerPublicKey(): PublicKey
      *
      * @return static
      */
-    public static function createFromResponseArray(array $responseArray, string $wrapper = null): ServerPublicKey
-    {
+    protected static function createFromResponseArray(
+        array $responseArray,
+        string $wrapper = null
+    ) {
         return new static($responseArray[self::FIELD_SERVER_PUBLIC_KEY]);
     }
+
+
+
+    /**
+     * @return bool
+     */
+    protected function isAllFieldNull()
+    {
+        if (!is_null($this->serverPublicKey)) {
+            return false;
+        }
+
+        return true;
+    }
 }
diff --git a/src/Model/Core/SessionServer.php b/src/Model/Core/SessionServer.php
index 9afeae67..add38743 100644
--- a/src/Model/Core/SessionServer.php
+++ b/src/Model/Core/SessionServer.php
@@ -86,4 +86,28 @@ public function getUserPerson()
     {
         return $this->userPerson;
     }
+
+    /**
+     * @return bool
+     */
+    protected function isAllFieldNull()
+    {
+        if (!is_null($this->token)) {
+            return false;
+        }
+
+        if (!is_null($this->id)) {
+            return false;
+        }
+
+        if (!is_null($this->userCompany)) {
+            return false;
+        }
+
+        if (!is_null($this->userPerson)) {
+            return false;
+        }
+
+        return true;
+    }
 }
diff --git a/src/Model/Core/Token.php b/src/Model/Core/Token.php
index 3069c414..9cda22af 100644
--- a/src/Model/Core/Token.php
+++ b/src/Model/Core/Token.php
@@ -40,4 +40,28 @@ public function getToken(): string
     {
         return $this->token;
     }
+
+    /**
+     * @return bool
+     */
+    protected function isAllFieldNull()
+    {
+        if (!is_null($this->id)) {
+            return false;
+        }
+
+        if (!is_null($this->created)) {
+            return false;
+        }
+
+        if (!is_null($this->updated)) {
+            return false;
+        }
+
+        if (!is_null($this->token)) {
+            return false;
+        }
+
+        return true;
+    }
 }
diff --git a/src/Model/Core/Uuid.php b/src/Model/Core/Uuid.php
index a9c5e304..b7fe6b39 100644
--- a/src/Model/Core/Uuid.php
+++ b/src/Model/Core/Uuid.php
@@ -17,4 +17,16 @@ public function getUuid(): string
     {
         return $this->uuid;
     }
+
+    /**
+     * @return bool
+     */
+    protected function isAllFieldNull()
+    {
+        if (!is_null($this->uuid)) {
+            return false;
+        }
+
+        return true;
+    }
 }
diff --git a/src/Model/Generated/Endpoint/AttachmentConversationContent.php b/src/Model/Generated/Endpoint/AttachmentConversationContent.php
index 0afbb69d..a7f5c19d 100644
--- a/src/Model/Generated/Endpoint/AttachmentConversationContent.php
+++ b/src/Model/Generated/Endpoint/AttachmentConversationContent.php
@@ -54,4 +54,12 @@ public static function listing(ApiContext $apiContext, int $userId, int $chatCon
             new BunqResponse($responseRaw->getBodyString(), $responseRaw->getHeaders())
         );
     }
+
+    /**
+     * @return bool
+     */
+    public function isAllFieldNull()
+    {
+        return true;
+    }
 }
diff --git a/src/Model/Generated/Endpoint/AttachmentMonetaryAccount.php b/src/Model/Generated/Endpoint/AttachmentMonetaryAccount.php
index 6fe59326..96a2c10d 100644
--- a/src/Model/Generated/Endpoint/AttachmentMonetaryAccount.php
+++ b/src/Model/Generated/Endpoint/AttachmentMonetaryAccount.php
@@ -115,4 +115,20 @@ public function setId($id)
     {
         $this->id = $id;
     }
+
+    /**
+     * @return bool
+     */
+    public function isAllFieldNull()
+    {
+        if (!is_null($this->attachment)) {
+            return false;
+        }
+
+        if (!is_null($this->id)) {
+            return false;
+        }
+
+        return true;
+    }
 }
diff --git a/src/Model/Generated/Endpoint/AttachmentPublic.php b/src/Model/Generated/Endpoint/AttachmentPublic.php
index f0732bb8..3239cb8f 100644
--- a/src/Model/Generated/Endpoint/AttachmentPublic.php
+++ b/src/Model/Generated/Endpoint/AttachmentPublic.php
@@ -192,4 +192,28 @@ public function setAttachment($attachment)
     {
         $this->attachment = $attachment;
     }
+
+    /**
+     * @return bool
+     */
+    public function isAllFieldNull()
+    {
+        if (!is_null($this->uuid)) {
+            return false;
+        }
+
+        if (!is_null($this->created)) {
+            return false;
+        }
+
+        if (!is_null($this->updated)) {
+            return false;
+        }
+
+        if (!is_null($this->attachment)) {
+            return false;
+        }
+
+        return true;
+    }
 }
diff --git a/src/Model/Generated/Endpoint/AttachmentPublicContent.php b/src/Model/Generated/Endpoint/AttachmentPublicContent.php
index f8c25da2..e810c5ef 100644
--- a/src/Model/Generated/Endpoint/AttachmentPublicContent.php
+++ b/src/Model/Generated/Endpoint/AttachmentPublicContent.php
@@ -53,4 +53,12 @@ public static function listing(ApiContext $apiContext, string $attachmentPublicU
             new BunqResponse($responseRaw->getBodyString(), $responseRaw->getHeaders())
         );
     }
+
+    /**
+     * @return bool
+     */
+    public function isAllFieldNull()
+    {
+        return true;
+    }
 }
diff --git a/src/Model/Generated/Endpoint/AttachmentTab.php b/src/Model/Generated/Endpoint/AttachmentTab.php
index a050a1c7..4a1373ed 100644
--- a/src/Model/Generated/Endpoint/AttachmentTab.php
+++ b/src/Model/Generated/Endpoint/AttachmentTab.php
@@ -196,4 +196,28 @@ public function setAttachment($attachment)
     {
         $this->attachment = $attachment;
     }
+
+    /**
+     * @return bool
+     */
+    public function isAllFieldNull()
+    {
+        if (!is_null($this->id)) {
+            return false;
+        }
+
+        if (!is_null($this->created)) {
+            return false;
+        }
+
+        if (!is_null($this->updated)) {
+            return false;
+        }
+
+        if (!is_null($this->attachment)) {
+            return false;
+        }
+
+        return true;
+    }
 }
diff --git a/src/Model/Generated/Endpoint/AttachmentTabContent.php b/src/Model/Generated/Endpoint/AttachmentTabContent.php
index cb2f0049..9fc20684 100644
--- a/src/Model/Generated/Endpoint/AttachmentTabContent.php
+++ b/src/Model/Generated/Endpoint/AttachmentTabContent.php
@@ -54,4 +54,12 @@ public static function listing(ApiContext $apiContext, int $userId, int $monetar
             new BunqResponse($responseRaw->getBodyString(), $responseRaw->getHeaders())
         );
     }
+
+    /**
+     * @return bool
+     */
+    public function isAllFieldNull()
+    {
+        return true;
+    }
 }
diff --git a/src/Model/Generated/Endpoint/Avatar.php b/src/Model/Generated/Endpoint/Avatar.php
index 2ae97b87..668c188b 100644
--- a/src/Model/Generated/Endpoint/Avatar.php
+++ b/src/Model/Generated/Endpoint/Avatar.php
@@ -133,4 +133,20 @@ public function setImage($image)
     {
         $this->image = $image;
     }
+
+    /**
+     * @return bool
+     */
+    public function isAllFieldNull()
+    {
+        if (!is_null($this->uuid)) {
+            return false;
+        }
+
+        if (!is_null($this->image)) {
+            return false;
+        }
+
+        return true;
+    }
 }
diff --git a/src/Model/Generated/Endpoint/BillingContractSubscription.php b/src/Model/Generated/Endpoint/BillingContractSubscription.php
index 39630169..342b6ca3 100644
--- a/src/Model/Generated/Endpoint/BillingContractSubscription.php
+++ b/src/Model/Generated/Endpoint/BillingContractSubscription.php
@@ -262,4 +262,40 @@ public function setSubscriptionType($subscriptionType)
     {
         $this->subscriptionType = $subscriptionType;
     }
+
+    /**
+     * @return bool
+     */
+    public function isAllFieldNull()
+    {
+        if (!is_null($this->id)) {
+            return false;
+        }
+
+        if (!is_null($this->created)) {
+            return false;
+        }
+
+        if (!is_null($this->updated)) {
+            return false;
+        }
+
+        if (!is_null($this->contractDateStart)) {
+            return false;
+        }
+
+        if (!is_null($this->contractDateEnd)) {
+            return false;
+        }
+
+        if (!is_null($this->contractVersion)) {
+            return false;
+        }
+
+        if (!is_null($this->subscriptionType)) {
+            return false;
+        }
+
+        return true;
+    }
 }
diff --git a/src/Model/Generated/Endpoint/BunqMeFundraiserProfile.php b/src/Model/Generated/Endpoint/BunqMeFundraiserProfile.php
new file mode 100644
index 00000000..3961d8de
--- /dev/null
+++ b/src/Model/Generated/Endpoint/BunqMeFundraiserProfile.php
@@ -0,0 +1,244 @@
+<?php
+namespace bunq\Model\Generated\Endpoint;
+
+use bunq\Model\Core\BunqModel;
+use bunq\Model\Generated\Object\AttachmentPublic;
+use bunq\Model\Generated\Object\LabelMonetaryAccount;
+use bunq\Model\Generated\Object\Pointer;
+
+/**
+ * bunq.me public profile of the user.
+ *
+ * @generated
+ */
+class BunqMeFundraiserProfile extends BunqModel
+{
+    /**
+     * Field constants.
+     */
+    const FIELD_POINTER = 'pointer';
+
+    /**
+     * Object type.
+     */
+    const OBJECT_TYPE = 'BunqMeFundraiserProfileModel';
+
+    /**
+     * The color chosen for the bunq.me fundraiser profile in hexadecimal
+     * format.
+     *
+     * @var string
+     */
+    protected $color;
+
+    /**
+     * The LabelMonetaryAccount with the public information of the User and the
+     * MonetaryAccount that created the bunq.me fundraiser profile.
+     *
+     * @var LabelMonetaryAccount
+     */
+    protected $alias;
+
+    /**
+     * The description of the bunq.me fundraiser profile.
+     *
+     * @var string
+     */
+    protected $description;
+
+    /**
+     * The attachments attached to the fundraiser profile.
+     *
+     * @var AttachmentPublic[]
+     */
+    protected $attachment;
+
+    /**
+     * The pointer (url) which will be used to access the bunq.me fundraiser
+     * profile.
+     *
+     * @var Pointer
+     */
+    protected $pointer;
+
+    /**
+     * The status of the bunq.me fundraiser profile, can be ACTIVE or
+     * DEACTIVATED.
+     *
+     * @var string
+     */
+    protected $status;
+
+    /**
+     * The URL which the user is sent to when a payment is completed.
+     *
+     * @var string
+     */
+    protected $redirectUrl;
+
+    /**
+     * The color chosen for the bunq.me fundraiser profile in hexadecimal
+     * format.
+     *
+     * @return string
+     */
+    public function getColor()
+    {
+        return $this->color;
+    }
+
+    /**
+     * @param string $color
+     */
+    public function setColor($color)
+    {
+        $this->color = $color;
+    }
+
+    /**
+     * The LabelMonetaryAccount with the public information of the User and the
+     * MonetaryAccount that created the bunq.me fundraiser profile.
+     *
+     * @return LabelMonetaryAccount
+     */
+    public function getAlias()
+    {
+        return $this->alias;
+    }
+
+    /**
+     * @param LabelMonetaryAccount $alias
+     */
+    public function setAlias($alias)
+    {
+        $this->alias = $alias;
+    }
+
+    /**
+     * The description of the bunq.me fundraiser profile.
+     *
+     * @return string
+     */
+    public function getDescription()
+    {
+        return $this->description;
+    }
+
+    /**
+     * @param string $description
+     */
+    public function setDescription($description)
+    {
+        $this->description = $description;
+    }
+
+    /**
+     * The attachments attached to the fundraiser profile.
+     *
+     * @return AttachmentPublic[]
+     */
+    public function getAttachment()
+    {
+        return $this->attachment;
+    }
+
+    /**
+     * @param AttachmentPublic[] $attachment
+     */
+    public function setAttachment($attachment)
+    {
+        $this->attachment = $attachment;
+    }
+
+    /**
+     * The pointer (url) which will be used to access the bunq.me fundraiser
+     * profile.
+     *
+     * @return Pointer
+     */
+    public function getPointer()
+    {
+        return $this->pointer;
+    }
+
+    /**
+     * @param Pointer $pointer
+     */
+    public function setPointer($pointer)
+    {
+        $this->pointer = $pointer;
+    }
+
+    /**
+     * The status of the bunq.me fundraiser profile, can be ACTIVE or
+     * DEACTIVATED.
+     *
+     * @return string
+     */
+    public function getStatus()
+    {
+        return $this->status;
+    }
+
+    /**
+     * @param string $status
+     */
+    public function setStatus($status)
+    {
+        $this->status = $status;
+    }
+
+    /**
+     * The URL which the user is sent to when a payment is completed.
+     *
+     * @return string
+     */
+    public function getRedirectUrl()
+    {
+        return $this->redirectUrl;
+    }
+
+    /**
+     * @param string $redirectUrl
+     */
+    public function setRedirectUrl($redirectUrl)
+    {
+        $this->redirectUrl = $redirectUrl;
+    }
+
+    /**
+     * @return bool
+     */
+    public function isAllFieldNull()
+    {
+        if (!is_null($this->color)) {
+            return false;
+        }
+
+        if (!is_null($this->alias)) {
+            return false;
+        }
+
+        if (!is_null($this->description)) {
+            return false;
+        }
+
+        if (!is_null($this->attachment)) {
+            return false;
+        }
+
+        if (!is_null($this->pointer)) {
+            return false;
+        }
+
+        if (!is_null($this->status)) {
+            return false;
+        }
+
+        if (!is_null($this->redirectUrl)) {
+            return false;
+        }
+
+        return true;
+    }
+}
diff --git a/src/Model/Generated/Endpoint/BunqMeFundraiserResult.php b/src/Model/Generated/Endpoint/BunqMeFundraiserResult.php
new file mode 100644
index 00000000..e6796b31
--- /dev/null
+++ b/src/Model/Generated/Endpoint/BunqMeFundraiserResult.php
@@ -0,0 +1,170 @@
+<?php
+namespace bunq\Model\Generated\Endpoint;
+
+use bunq\Model\Core\BunqModel;
+
+/**
+ * bunq.me fundraiser result containing all payments.
+ *
+ * @generated
+ */
+class BunqMeFundraiserResult extends BunqModel
+{
+    /**
+     * Object type.
+     */
+    const OBJECT_TYPE = 'BunqMeFundraiserResult';
+
+    /**
+     * The id of the bunq.me.
+     *
+     * @var int
+     */
+    protected $id;
+
+    /**
+     * The timestamp when the bunq.me was created.
+     *
+     * @var string
+     */
+    protected $created;
+
+    /**
+     * The timestamp when the bunq.me was last updated.
+     *
+     * @var string
+     */
+    protected $updated;
+
+    /**
+     * The bunq.me fundraiser profile.
+     *
+     * @var BunqMeFundraiserProfile
+     */
+    protected $bunqmeFundraiserProfile;
+
+    /**
+     * The list of payments, paid to the bunq.me fundraiser profile.
+     *
+     * @var Payment[]
+     */
+    protected $payments;
+
+    /**
+     * The id of the bunq.me.
+     *
+     * @return int
+     */
+    public function getId()
+    {
+        return $this->id;
+    }
+
+    /**
+     * @param int $id
+     */
+    public function setId($id)
+    {
+        $this->id = $id;
+    }
+
+    /**
+     * The timestamp when the bunq.me was created.
+     *
+     * @return string
+     */
+    public function getCreated()
+    {
+        return $this->created;
+    }
+
+    /**
+     * @param string $created
+     */
+    public function setCreated($created)
+    {
+        $this->created = $created;
+    }
+
+    /**
+     * The timestamp when the bunq.me was last updated.
+     *
+     * @return string
+     */
+    public function getUpdated()
+    {
+        return $this->updated;
+    }
+
+    /**
+     * @param string $updated
+     */
+    public function setUpdated($updated)
+    {
+        $this->updated = $updated;
+    }
+
+    /**
+     * The bunq.me fundraiser profile.
+     *
+     * @return BunqMeFundraiserProfile
+     */
+    public function getBunqmeFundraiserProfile()
+    {
+        return $this->bunqmeFundraiserProfile;
+    }
+
+    /**
+     * @param BunqMeFundraiserProfile $bunqmeFundraiserProfile
+     */
+    public function setBunqmeFundraiserProfile($bunqmeFundraiserProfile)
+    {
+        $this->bunqmeFundraiserProfile = $bunqmeFundraiserProfile;
+    }
+
+    /**
+     * The list of payments, paid to the bunq.me fundraiser profile.
+     *
+     * @return Payment[]
+     */
+    public function getPayments()
+    {
+        return $this->payments;
+    }
+
+    /**
+     * @param Payment[] $payments
+     */
+    public function setPayments($payments)
+    {
+        $this->payments = $payments;
+    }
+
+    /**
+     * @return bool
+     */
+    public function isAllFieldNull()
+    {
+        if (!is_null($this->id)) {
+            return false;
+        }
+
+        if (!is_null($this->created)) {
+            return false;
+        }
+
+        if (!is_null($this->updated)) {
+            return false;
+        }
+
+        if (!is_null($this->bunqmeFundraiserProfile)) {
+            return false;
+        }
+
+        if (!is_null($this->payments)) {
+            return false;
+        }
+
+        return true;
+    }
+}
diff --git a/src/Model/Generated/Endpoint/BunqMeTab.php b/src/Model/Generated/Endpoint/BunqMeTab.php
index 86c79044..61532f1a 100644
--- a/src/Model/Generated/Endpoint/BunqMeTab.php
+++ b/src/Model/Generated/Endpoint/BunqMeTab.php
@@ -368,4 +368,48 @@ public function setResultInquiries($resultInquiries)
     {
         $this->resultInquiries = $resultInquiries;
     }
+
+    /**
+     * @return bool
+     */
+    public function isAllFieldNull()
+    {
+        if (!is_null($this->id)) {
+            return false;
+        }
+
+        if (!is_null($this->created)) {
+            return false;
+        }
+
+        if (!is_null($this->updated)) {
+            return false;
+        }
+
+        if (!is_null($this->timeExpiry)) {
+            return false;
+        }
+
+        if (!is_null($this->monetaryAccountId)) {
+            return false;
+        }
+
+        if (!is_null($this->status)) {
+            return false;
+        }
+
+        if (!is_null($this->bunqmeTabShareUrl)) {
+            return false;
+        }
+
+        if (!is_null($this->bunqmeTabEntry)) {
+            return false;
+        }
+
+        if (!is_null($this->resultInquiries)) {
+            return false;
+        }
+
+        return true;
+    }
 }
diff --git a/src/Model/Generated/Endpoint/BunqMeTabEntry.php b/src/Model/Generated/Endpoint/BunqMeTabEntry.php
index 9bff0fff..2fac81d2 100644
--- a/src/Model/Generated/Endpoint/BunqMeTabEntry.php
+++ b/src/Model/Generated/Endpoint/BunqMeTabEntry.php
@@ -205,4 +205,40 @@ public function setMerchantAvailable($merchantAvailable)
     {
         $this->merchantAvailable = $merchantAvailable;
     }
+
+    /**
+     * @return bool
+     */
+    public function isAllFieldNull()
+    {
+        if (!is_null($this->uuid)) {
+            return false;
+        }
+
+        if (!is_null($this->amountInquired)) {
+            return false;
+        }
+
+        if (!is_null($this->alias)) {
+            return false;
+        }
+
+        if (!is_null($this->description)) {
+            return false;
+        }
+
+        if (!is_null($this->status)) {
+            return false;
+        }
+
+        if (!is_null($this->redirectUrl)) {
+            return false;
+        }
+
+        if (!is_null($this->merchantAvailable)) {
+            return false;
+        }
+
+        return true;
+    }
 }
diff --git a/src/Model/Generated/Endpoint/BunqMeTabResultInquiry.php b/src/Model/Generated/Endpoint/BunqMeTabResultInquiry.php
index cfeacb4d..8f152b77 100644
--- a/src/Model/Generated/Endpoint/BunqMeTabResultInquiry.php
+++ b/src/Model/Generated/Endpoint/BunqMeTabResultInquiry.php
@@ -41,4 +41,16 @@ public function setPayment($payment)
     {
         $this->payment = $payment;
     }
+
+    /**
+     * @return bool
+     */
+    public function isAllFieldNull()
+    {
+        if (!is_null($this->payment)) {
+            return false;
+        }
+
+        return true;
+    }
 }
diff --git a/src/Model/Generated/Endpoint/BunqMeTabResultResponse.php b/src/Model/Generated/Endpoint/BunqMeTabResultResponse.php
index 30518190..053e7b27 100644
--- a/src/Model/Generated/Endpoint/BunqMeTabResultResponse.php
+++ b/src/Model/Generated/Endpoint/BunqMeTabResultResponse.php
@@ -41,4 +41,16 @@ public function setPayment($payment)
     {
         $this->payment = $payment;
     }
+
+    /**
+     * @return bool
+     */
+    public function isAllFieldNull()
+    {
+        if (!is_null($this->payment)) {
+            return false;
+        }
+
+        return true;
+    }
 }
diff --git a/src/Model/Generated/Endpoint/Card.php b/src/Model/Generated/Endpoint/Card.php
index 097595f6..133c363c 100644
--- a/src/Model/Generated/Endpoint/Card.php
+++ b/src/Model/Generated/Endpoint/Card.php
@@ -674,4 +674,96 @@ public function setCountry($country)
     {
         $this->country = $country;
     }
+
+    /**
+     * @return bool
+     */
+    public function isAllFieldNull()
+    {
+        if (!is_null($this->id)) {
+            return false;
+        }
+
+        if (!is_null($this->created)) {
+            return false;
+        }
+
+        if (!is_null($this->updated)) {
+            return false;
+        }
+
+        if (!is_null($this->publicUuid)) {
+            return false;
+        }
+
+        if (!is_null($this->type)) {
+            return false;
+        }
+
+        if (!is_null($this->subType)) {
+            return false;
+        }
+
+        if (!is_null($this->secondLine)) {
+            return false;
+        }
+
+        if (!is_null($this->status)) {
+            return false;
+        }
+
+        if (!is_null($this->subStatus)) {
+            return false;
+        }
+
+        if (!is_null($this->orderStatus)) {
+            return false;
+        }
+
+        if (!is_null($this->expiryDate)) {
+            return false;
+        }
+
+        if (!is_null($this->nameOnCard)) {
+            return false;
+        }
+
+        if (!is_null($this->primaryAccountNumberFourDigit)) {
+            return false;
+        }
+
+        if (!is_null($this->limit)) {
+            return false;
+        }
+
+        if (!is_null($this->magStripePermission)) {
+            return false;
+        }
+
+        if (!is_null($this->countryPermission)) {
+            return false;
+        }
+
+        if (!is_null($this->labelMonetaryAccountOrdered)) {
+            return false;
+        }
+
+        if (!is_null($this->labelMonetaryAccountCurrent)) {
+            return false;
+        }
+
+        if (!is_null($this->pinCodeAssignment)) {
+            return false;
+        }
+
+        if (!is_null($this->monetaryAccountIdFallback)) {
+            return false;
+        }
+
+        if (!is_null($this->country)) {
+            return false;
+        }
+
+        return true;
+    }
 }
diff --git a/src/Model/Generated/Endpoint/CardDebit.php b/src/Model/Generated/Endpoint/CardDebit.php
index 5f5df7d0..22a74521 100644
--- a/src/Model/Generated/Endpoint/CardDebit.php
+++ b/src/Model/Generated/Endpoint/CardDebit.php
@@ -583,4 +583,92 @@ public function setCountry($country)
     {
         $this->country = $country;
     }
+
+    /**
+     * @return bool
+     */
+    public function isAllFieldNull()
+    {
+        if (!is_null($this->id)) {
+            return false;
+        }
+
+        if (!is_null($this->created)) {
+            return false;
+        }
+
+        if (!is_null($this->updated)) {
+            return false;
+        }
+
+        if (!is_null($this->publicUuid)) {
+            return false;
+        }
+
+        if (!is_null($this->type)) {
+            return false;
+        }
+
+        if (!is_null($this->subType)) {
+            return false;
+        }
+
+        if (!is_null($this->secondLine)) {
+            return false;
+        }
+
+        if (!is_null($this->nameOnCard)) {
+            return false;
+        }
+
+        if (!is_null($this->primaryAccountNumberFourDigit)) {
+            return false;
+        }
+
+        if (!is_null($this->status)) {
+            return false;
+        }
+
+        if (!is_null($this->orderStatus)) {
+            return false;
+        }
+
+        if (!is_null($this->expiryDate)) {
+            return false;
+        }
+
+        if (!is_null($this->limit)) {
+            return false;
+        }
+
+        if (!is_null($this->countryPermission)) {
+            return false;
+        }
+
+        if (!is_null($this->labelMonetaryAccountOrdered)) {
+            return false;
+        }
+
+        if (!is_null($this->labelMonetaryAccountCurrent)) {
+            return false;
+        }
+
+        if (!is_null($this->alias)) {
+            return false;
+        }
+
+        if (!is_null($this->pinCodeAssignment)) {
+            return false;
+        }
+
+        if (!is_null($this->monetaryAccountIdFallback)) {
+            return false;
+        }
+
+        if (!is_null($this->country)) {
+            return false;
+        }
+
+        return true;
+    }
 }
diff --git a/src/Model/Generated/Endpoint/CardGeneratedCvc2.php b/src/Model/Generated/Endpoint/CardGeneratedCvc2.php
index bdd8f54b..c6b72dce 100644
--- a/src/Model/Generated/Endpoint/CardGeneratedCvc2.php
+++ b/src/Model/Generated/Endpoint/CardGeneratedCvc2.php
@@ -262,4 +262,36 @@ public function setExpiryTime($expiryTime)
     {
         $this->expiryTime = $expiryTime;
     }
+
+    /**
+     * @return bool
+     */
+    public function isAllFieldNull()
+    {
+        if (!is_null($this->id)) {
+            return false;
+        }
+
+        if (!is_null($this->created)) {
+            return false;
+        }
+
+        if (!is_null($this->updated)) {
+            return false;
+        }
+
+        if (!is_null($this->cvc2)) {
+            return false;
+        }
+
+        if (!is_null($this->status)) {
+            return false;
+        }
+
+        if (!is_null($this->expiryTime)) {
+            return false;
+        }
+
+        return true;
+    }
 }
diff --git a/src/Model/Generated/Endpoint/CardName.php b/src/Model/Generated/Endpoint/CardName.php
index 19d999ff..f342e8b5 100644
--- a/src/Model/Generated/Endpoint/CardName.php
+++ b/src/Model/Generated/Endpoint/CardName.php
@@ -82,4 +82,16 @@ public function setPossibleCardNameArray($possibleCardNameArray)
     {
         $this->possibleCardNameArray = $possibleCardNameArray;
     }
+
+    /**
+     * @return bool
+     */
+    public function isAllFieldNull()
+    {
+        if (!is_null($this->possibleCardNameArray)) {
+            return false;
+        }
+
+        return true;
+    }
 }
diff --git a/src/Model/Generated/Endpoint/CardPinChange.php b/src/Model/Generated/Endpoint/CardPinChange.php
index 4606f30f..0a19b094 100644
--- a/src/Model/Generated/Endpoint/CardPinChange.php
+++ b/src/Model/Generated/Endpoint/CardPinChange.php
@@ -234,4 +234,36 @@ public function setStatus($status)
     {
         $this->status = $status;
     }
+
+    /**
+     * @return bool
+     */
+    public function isAllFieldNull()
+    {
+        if (!is_null($this->id)) {
+            return false;
+        }
+
+        if (!is_null($this->labelCard)) {
+            return false;
+        }
+
+        if (!is_null($this->labelMonetaryAccountCurrent)) {
+            return false;
+        }
+
+        if (!is_null($this->timeRequest)) {
+            return false;
+        }
+
+        if (!is_null($this->timeAccept)) {
+            return false;
+        }
+
+        if (!is_null($this->status)) {
+            return false;
+        }
+
+        return true;
+    }
 }
diff --git a/src/Model/Generated/Endpoint/CardReplace.php b/src/Model/Generated/Endpoint/CardReplace.php
index a07be4e1..05f63477 100644
--- a/src/Model/Generated/Endpoint/CardReplace.php
+++ b/src/Model/Generated/Endpoint/CardReplace.php
@@ -87,4 +87,16 @@ public function setId($id)
     {
         $this->id = $id;
     }
+
+    /**
+     * @return bool
+     */
+    public function isAllFieldNull()
+    {
+        if (!is_null($this->id)) {
+            return false;
+        }
+
+        return true;
+    }
 }
diff --git a/src/Model/Generated/Endpoint/CardResult.php b/src/Model/Generated/Endpoint/CardResult.php
index f2d3d819..67ac8ff1 100644
--- a/src/Model/Generated/Endpoint/CardResult.php
+++ b/src/Model/Generated/Endpoint/CardResult.php
@@ -485,4 +485,76 @@ public function setReservationExpiryTime($reservationExpiryTime)
     {
         $this->reservationExpiryTime = $reservationExpiryTime;
     }
+
+    /**
+     * @return bool
+     */
+    public function isAllFieldNull()
+    {
+        if (!is_null($this->monetaryAccountId)) {
+            return false;
+        }
+
+        if (!is_null($this->cardId)) {
+            return false;
+        }
+
+        if (!is_null($this->amountOriginal)) {
+            return false;
+        }
+
+        if (!is_null($this->amountFinal)) {
+            return false;
+        }
+
+        if (!is_null($this->decision)) {
+            return false;
+        }
+
+        if (!is_null($this->decisionDescription)) {
+            return false;
+        }
+
+        if (!is_null($this->decisionDescriptionTranslated)) {
+            return false;
+        }
+
+        if (!is_null($this->description)) {
+            return false;
+        }
+
+        if (!is_null($this->messageType)) {
+            return false;
+        }
+
+        if (!is_null($this->authorisationType)) {
+            return false;
+        }
+
+        if (!is_null($this->city)) {
+            return false;
+        }
+
+        if (!is_null($this->alias)) {
+            return false;
+        }
+
+        if (!is_null($this->counterpartyAlias)) {
+            return false;
+        }
+
+        if (!is_null($this->labelCard)) {
+            return false;
+        }
+
+        if (!is_null($this->reservationStatus)) {
+            return false;
+        }
+
+        if (!is_null($this->reservationExpiryTime)) {
+            return false;
+        }
+
+        return true;
+    }
 }
diff --git a/src/Model/Generated/Endpoint/CashRegister.php b/src/Model/Generated/Endpoint/CashRegister.php
index c8df8b72..10109ba6 100644
--- a/src/Model/Generated/Endpoint/CashRegister.php
+++ b/src/Model/Generated/Endpoint/CashRegister.php
@@ -397,4 +397,48 @@ public function setTabTextWaitingScreen($tabTextWaitingScreen)
     {
         $this->tabTextWaitingScreen = $tabTextWaitingScreen;
     }
+
+    /**
+     * @return bool
+     */
+    public function isAllFieldNull()
+    {
+        if (!is_null($this->id)) {
+            return false;
+        }
+
+        if (!is_null($this->created)) {
+            return false;
+        }
+
+        if (!is_null($this->updated)) {
+            return false;
+        }
+
+        if (!is_null($this->name)) {
+            return false;
+        }
+
+        if (!is_null($this->status)) {
+            return false;
+        }
+
+        if (!is_null($this->avatar)) {
+            return false;
+        }
+
+        if (!is_null($this->location)) {
+            return false;
+        }
+
+        if (!is_null($this->notificationFilters)) {
+            return false;
+        }
+
+        if (!is_null($this->tabTextWaitingScreen)) {
+            return false;
+        }
+
+        return true;
+    }
 }
diff --git a/src/Model/Generated/Endpoint/CashRegisterQrCode.php b/src/Model/Generated/Endpoint/CashRegisterQrCode.php
index 9a9649cf..01b07b3b 100644
--- a/src/Model/Generated/Endpoint/CashRegisterQrCode.php
+++ b/src/Model/Generated/Endpoint/CashRegisterQrCode.php
@@ -312,4 +312,36 @@ public function setTabObject($tabObject)
     {
         $this->tabObject = $tabObject;
     }
+
+    /**
+     * @return bool
+     */
+    public function isAllFieldNull()
+    {
+        if (!is_null($this->id)) {
+            return false;
+        }
+
+        if (!is_null($this->created)) {
+            return false;
+        }
+
+        if (!is_null($this->updated)) {
+            return false;
+        }
+
+        if (!is_null($this->status)) {
+            return false;
+        }
+
+        if (!is_null($this->cashRegister)) {
+            return false;
+        }
+
+        if (!is_null($this->tabObject)) {
+            return false;
+        }
+
+        return true;
+    }
 }
diff --git a/src/Model/Generated/Endpoint/CashRegisterQrCodeContent.php b/src/Model/Generated/Endpoint/CashRegisterQrCodeContent.php
index 234a06f0..44668124 100644
--- a/src/Model/Generated/Endpoint/CashRegisterQrCodeContent.php
+++ b/src/Model/Generated/Endpoint/CashRegisterQrCodeContent.php
@@ -55,4 +55,12 @@ public static function listing(ApiContext $apiContext, int $userId, int $monetar
             new BunqResponse($responseRaw->getBodyString(), $responseRaw->getHeaders())
         );
     }
+
+    /**
+     * @return bool
+     */
+    public function isAllFieldNull()
+    {
+        return true;
+    }
 }
diff --git a/src/Model/Generated/Endpoint/CertificatePinned.php b/src/Model/Generated/Endpoint/CertificatePinned.php
index d318112d..a68f02cf 100644
--- a/src/Model/Generated/Endpoint/CertificatePinned.php
+++ b/src/Model/Generated/Endpoint/CertificatePinned.php
@@ -194,4 +194,20 @@ public function setId($id)
     {
         $this->id = $id;
     }
+
+    /**
+     * @return bool
+     */
+    public function isAllFieldNull()
+    {
+        if (!is_null($this->certificateChain)) {
+            return false;
+        }
+
+        if (!is_null($this->id)) {
+            return false;
+        }
+
+        return true;
+    }
 }
diff --git a/src/Model/Generated/Endpoint/ChatConversation.php b/src/Model/Generated/Endpoint/ChatConversation.php
index 14968735..f61455a1 100644
--- a/src/Model/Generated/Endpoint/ChatConversation.php
+++ b/src/Model/Generated/Endpoint/ChatConversation.php
@@ -5,6 +5,7 @@
 use bunq\exception\BunqException;
 use bunq\Http\ApiClient;
 use bunq\Http\BunqResponse;
+use bunq\Model\Core\AnchorObjectInterface;
 use bunq\Model\Core\BunqModel;
 
 /**
@@ -12,7 +13,7 @@
  *
  * @generated
  */
-class ChatConversation extends BunqModel
+class ChatConversation extends BunqModel implements AnchorObjectInterface
 {
     /**
      * Error constants.
@@ -141,4 +142,20 @@ public function getReferencedObject()
 
         throw new BunqException(self::ERROR_NULL_FIELDS);
     }
+
+    /**
+     * @return bool
+     */
+    public function isAllFieldNull()
+    {
+        if (!is_null($this->supportConversationExternal)) {
+            return false;
+        }
+
+        if (!is_null($this->chatConversationReference)) {
+            return false;
+        }
+
+        return true;
+    }
 }
diff --git a/src/Model/Generated/Endpoint/ChatConversationReference.php b/src/Model/Generated/Endpoint/ChatConversationReference.php
index c8e57fae..b28e8ac1 100644
--- a/src/Model/Generated/Endpoint/ChatConversationReference.php
+++ b/src/Model/Generated/Endpoint/ChatConversationReference.php
@@ -89,4 +89,24 @@ public function setUpdated($updated)
     {
         $this->updated = $updated;
     }
+
+    /**
+     * @return bool
+     */
+    public function isAllFieldNull()
+    {
+        if (!is_null($this->id)) {
+            return false;
+        }
+
+        if (!is_null($this->created)) {
+            return false;
+        }
+
+        if (!is_null($this->updated)) {
+            return false;
+        }
+
+        return true;
+    }
 }
diff --git a/src/Model/Generated/Endpoint/ChatConversationSupportExternal.php b/src/Model/Generated/Endpoint/ChatConversationSupportExternal.php
index 6f9981dc..cd392d8e 100644
--- a/src/Model/Generated/Endpoint/ChatConversationSupportExternal.php
+++ b/src/Model/Generated/Endpoint/ChatConversationSupportExternal.php
@@ -114,4 +114,28 @@ public function setLastMessage($lastMessage)
     {
         $this->lastMessage = $lastMessage;
     }
+
+    /**
+     * @return bool
+     */
+    public function isAllFieldNull()
+    {
+        if (!is_null($this->id)) {
+            return false;
+        }
+
+        if (!is_null($this->created)) {
+            return false;
+        }
+
+        if (!is_null($this->updated)) {
+            return false;
+        }
+
+        if (!is_null($this->lastMessage)) {
+            return false;
+        }
+
+        return true;
+    }
 }
diff --git a/src/Model/Generated/Endpoint/ChatMessage.php b/src/Model/Generated/Endpoint/ChatMessage.php
index 8a4950d8..dd3a04f4 100644
--- a/src/Model/Generated/Endpoint/ChatMessage.php
+++ b/src/Model/Generated/Endpoint/ChatMessage.php
@@ -5,6 +5,7 @@
 use bunq\exception\BunqException;
 use bunq\Http\ApiClient;
 use bunq\Http\BunqResponse;
+use bunq\Model\Core\AnchorObjectInterface;
 use bunq\Model\Core\BunqModel;
 
 /**
@@ -12,7 +13,7 @@
  *
  * @generated
  */
-class ChatMessage extends BunqModel
+class ChatMessage extends BunqModel implements AnchorObjectInterface
 {
     /**
      * Error constants.
@@ -143,4 +144,24 @@ public function getReferencedObject()
 
         throw new BunqException(self::ERROR_NULL_FIELDS);
     }
+
+    /**
+     * @return bool
+     */
+    public function isAllFieldNull()
+    {
+        if (!is_null($this->chatMessageAnnouncement)) {
+            return false;
+        }
+
+        if (!is_null($this->chatMessageStatus)) {
+            return false;
+        }
+
+        if (!is_null($this->chatMessageUser)) {
+            return false;
+        }
+
+        return true;
+    }
 }
diff --git a/src/Model/Generated/Endpoint/ChatMessageAnnouncement.php b/src/Model/Generated/Endpoint/ChatMessageAnnouncement.php
index 7e978347..0e56fabf 100644
--- a/src/Model/Generated/Endpoint/ChatMessageAnnouncement.php
+++ b/src/Model/Generated/Endpoint/ChatMessageAnnouncement.php
@@ -166,4 +166,36 @@ public function setContent($content)
     {
         $this->content = $content;
     }
+
+    /**
+     * @return bool
+     */
+    public function isAllFieldNull()
+    {
+        if (!is_null($this->id)) {
+            return false;
+        }
+
+        if (!is_null($this->created)) {
+            return false;
+        }
+
+        if (!is_null($this->updated)) {
+            return false;
+        }
+
+        if (!is_null($this->conversationId)) {
+            return false;
+        }
+
+        if (!is_null($this->creator)) {
+            return false;
+        }
+
+        if (!is_null($this->content)) {
+            return false;
+        }
+
+        return true;
+    }
 }
diff --git a/src/Model/Generated/Endpoint/ChatMessageAttachment.php b/src/Model/Generated/Endpoint/ChatMessageAttachment.php
index 8eda118f..ef1da508 100644
--- a/src/Model/Generated/Endpoint/ChatMessageAttachment.php
+++ b/src/Model/Generated/Endpoint/ChatMessageAttachment.php
@@ -82,4 +82,16 @@ public function setId($id)
     {
         $this->id = $id;
     }
+
+    /**
+     * @return bool
+     */
+    public function isAllFieldNull()
+    {
+        if (!is_null($this->id)) {
+            return false;
+        }
+
+        return true;
+    }
 }
diff --git a/src/Model/Generated/Endpoint/ChatMessageStatus.php b/src/Model/Generated/Endpoint/ChatMessageStatus.php
index 1d8c9a34..1b58e381 100644
--- a/src/Model/Generated/Endpoint/ChatMessageStatus.php
+++ b/src/Model/Generated/Endpoint/ChatMessageStatus.php
@@ -166,4 +166,36 @@ public function setContent($content)
     {
         $this->content = $content;
     }
+
+    /**
+     * @return bool
+     */
+    public function isAllFieldNull()
+    {
+        if (!is_null($this->id)) {
+            return false;
+        }
+
+        if (!is_null($this->created)) {
+            return false;
+        }
+
+        if (!is_null($this->updated)) {
+            return false;
+        }
+
+        if (!is_null($this->conversationId)) {
+            return false;
+        }
+
+        if (!is_null($this->creator)) {
+            return false;
+        }
+
+        if (!is_null($this->content)) {
+            return false;
+        }
+
+        return true;
+    }
 }
diff --git a/src/Model/Generated/Endpoint/ChatMessageText.php b/src/Model/Generated/Endpoint/ChatMessageText.php
index b7358390..5c06fb6a 100644
--- a/src/Model/Generated/Endpoint/ChatMessageText.php
+++ b/src/Model/Generated/Endpoint/ChatMessageText.php
@@ -81,4 +81,16 @@ public function setId($id)
     {
         $this->id = $id;
     }
+
+    /**
+     * @return bool
+     */
+    public function isAllFieldNull()
+    {
+        if (!is_null($this->id)) {
+            return false;
+        }
+
+        return true;
+    }
 }
diff --git a/src/Model/Generated/Endpoint/ChatMessageUser.php b/src/Model/Generated/Endpoint/ChatMessageUser.php
index a543b07c..d77441e1 100644
--- a/src/Model/Generated/Endpoint/ChatMessageUser.php
+++ b/src/Model/Generated/Endpoint/ChatMessageUser.php
@@ -191,4 +191,40 @@ public function setContent($content)
     {
         $this->content = $content;
     }
+
+    /**
+     * @return bool
+     */
+    public function isAllFieldNull()
+    {
+        if (!is_null($this->id)) {
+            return false;
+        }
+
+        if (!is_null($this->created)) {
+            return false;
+        }
+
+        if (!is_null($this->updated)) {
+            return false;
+        }
+
+        if (!is_null($this->conversationId)) {
+            return false;
+        }
+
+        if (!is_null($this->creator)) {
+            return false;
+        }
+
+        if (!is_null($this->displayedSender)) {
+            return false;
+        }
+
+        if (!is_null($this->content)) {
+            return false;
+        }
+
+        return true;
+    }
 }
diff --git a/src/Model/Generated/Endpoint/Customer.php b/src/Model/Generated/Endpoint/Customer.php
index 88bbdf3b..4f25d881 100644
--- a/src/Model/Generated/Endpoint/Customer.php
+++ b/src/Model/Generated/Endpoint/Customer.php
@@ -208,4 +208,28 @@ public function setBillingAccountId($billingAccountId)
     {
         $this->billingAccountId = $billingAccountId;
     }
+
+    /**
+     * @return bool
+     */
+    public function isAllFieldNull()
+    {
+        if (!is_null($this->id)) {
+            return false;
+        }
+
+        if (!is_null($this->created)) {
+            return false;
+        }
+
+        if (!is_null($this->updated)) {
+            return false;
+        }
+
+        if (!is_null($this->billingAccountId)) {
+            return false;
+        }
+
+        return true;
+    }
 }
diff --git a/src/Model/Generated/Endpoint/CustomerLimit.php b/src/Model/Generated/Endpoint/CustomerLimit.php
index 6e58584f..1c5c6303 100644
--- a/src/Model/Generated/Endpoint/CustomerLimit.php
+++ b/src/Model/Generated/Endpoint/CustomerLimit.php
@@ -177,4 +177,32 @@ public function setLimitCardDebitReplacement($limitCardDebitReplacement)
     {
         $this->limitCardDebitReplacement = $limitCardDebitReplacement;
     }
+
+    /**
+     * @return bool
+     */
+    public function isAllFieldNull()
+    {
+        if (!is_null($this->limitMonetaryAccount)) {
+            return false;
+        }
+
+        if (!is_null($this->limitCardDebitMaestro)) {
+            return false;
+        }
+
+        if (!is_null($this->limitCardDebitMastercard)) {
+            return false;
+        }
+
+        if (!is_null($this->limitCardDebitWildcard)) {
+            return false;
+        }
+
+        if (!is_null($this->limitCardDebitReplacement)) {
+            return false;
+        }
+
+        return true;
+    }
 }
diff --git a/src/Model/Generated/Endpoint/CustomerStatementExport.php b/src/Model/Generated/Endpoint/CustomerStatementExport.php
index 6248d590..8279fa9f 100644
--- a/src/Model/Generated/Endpoint/CustomerStatementExport.php
+++ b/src/Model/Generated/Endpoint/CustomerStatementExport.php
@@ -391,4 +391,52 @@ public function setAliasMonetaryAccount($aliasMonetaryAccount)
     {
         $this->aliasMonetaryAccount = $aliasMonetaryAccount;
     }
+
+    /**
+     * @return bool
+     */
+    public function isAllFieldNull()
+    {
+        if (!is_null($this->id)) {
+            return false;
+        }
+
+        if (!is_null($this->created)) {
+            return false;
+        }
+
+        if (!is_null($this->updated)) {
+            return false;
+        }
+
+        if (!is_null($this->dateStart)) {
+            return false;
+        }
+
+        if (!is_null($this->dateEnd)) {
+            return false;
+        }
+
+        if (!is_null($this->status)) {
+            return false;
+        }
+
+        if (!is_null($this->statementNumber)) {
+            return false;
+        }
+
+        if (!is_null($this->statementFormat)) {
+            return false;
+        }
+
+        if (!is_null($this->regionalFormat)) {
+            return false;
+        }
+
+        if (!is_null($this->aliasMonetaryAccount)) {
+            return false;
+        }
+
+        return true;
+    }
 }
diff --git a/src/Model/Generated/Endpoint/CustomerStatementExportContent.php b/src/Model/Generated/Endpoint/CustomerStatementExportContent.php
index acf815fd..9e849581 100644
--- a/src/Model/Generated/Endpoint/CustomerStatementExportContent.php
+++ b/src/Model/Generated/Endpoint/CustomerStatementExportContent.php
@@ -54,4 +54,12 @@ public static function listing(ApiContext $apiContext, int $userId, int $monetar
             new BunqResponse($responseRaw->getBodyString(), $responseRaw->getHeaders())
         );
     }
+
+    /**
+     * @return bool
+     */
+    public function isAllFieldNull()
+    {
+        return true;
+    }
 }
diff --git a/src/Model/Generated/Endpoint/Device.php b/src/Model/Generated/Endpoint/Device.php
index 46659a43..8ff92e5f 100644
--- a/src/Model/Generated/Endpoint/Device.php
+++ b/src/Model/Generated/Endpoint/Device.php
@@ -5,6 +5,7 @@
 use bunq\exception\BunqException;
 use bunq\Http\ApiClient;
 use bunq\Http\BunqResponse;
+use bunq\Model\Core\AnchorObjectInterface;
 use bunq\Model\Core\BunqModel;
 
 /**
@@ -13,7 +14,7 @@
  *
  * @generated
  */
-class Device extends BunqModel
+class Device extends BunqModel implements AnchorObjectInterface
 {
     /**
      * Error constants.
@@ -120,4 +121,16 @@ public function getReferencedObject()
 
         throw new BunqException(self::ERROR_NULL_FIELDS);
     }
+
+    /**
+     * @return bool
+     */
+    public function isAllFieldNull()
+    {
+        if (!is_null($this->deviceServer)) {
+            return false;
+        }
+
+        return true;
+    }
 }
diff --git a/src/Model/Generated/Endpoint/DeviceServer.php b/src/Model/Generated/Endpoint/DeviceServer.php
index 4ab64a13..3d9c12dc 100644
--- a/src/Model/Generated/Endpoint/DeviceServer.php
+++ b/src/Model/Generated/Endpoint/DeviceServer.php
@@ -272,4 +272,36 @@ public function setStatus($status)
     {
         $this->status = $status;
     }
+
+    /**
+     * @return bool
+     */
+    public function isAllFieldNull()
+    {
+        if (!is_null($this->id)) {
+            return false;
+        }
+
+        if (!is_null($this->created)) {
+            return false;
+        }
+
+        if (!is_null($this->updated)) {
+            return false;
+        }
+
+        if (!is_null($this->description)) {
+            return false;
+        }
+
+        if (!is_null($this->ip)) {
+            return false;
+        }
+
+        if (!is_null($this->status)) {
+            return false;
+        }
+
+        return true;
+    }
 }
diff --git a/src/Model/Generated/Endpoint/DraftPayment.php b/src/Model/Generated/Endpoint/DraftPayment.php
index afaafd0c..9d06550c 100644
--- a/src/Model/Generated/Endpoint/DraftPayment.php
+++ b/src/Model/Generated/Endpoint/DraftPayment.php
@@ -356,4 +356,44 @@ public function setObject($object)
     {
         $this->object = $object;
     }
+
+    /**
+     * @return bool
+     */
+    public function isAllFieldNull()
+    {
+        if (!is_null($this->id)) {
+            return false;
+        }
+
+        if (!is_null($this->monetaryAccountId)) {
+            return false;
+        }
+
+        if (!is_null($this->userAliasCreated)) {
+            return false;
+        }
+
+        if (!is_null($this->responses)) {
+            return false;
+        }
+
+        if (!is_null($this->status)) {
+            return false;
+        }
+
+        if (!is_null($this->type)) {
+            return false;
+        }
+
+        if (!is_null($this->entries)) {
+            return false;
+        }
+
+        if (!is_null($this->object)) {
+            return false;
+        }
+
+        return true;
+    }
 }
diff --git a/src/Model/Generated/Endpoint/DraftShareInviteBank.php b/src/Model/Generated/Endpoint/DraftShareInviteBank.php
index ce51a8d9..6df5a1e7 100644
--- a/src/Model/Generated/Endpoint/DraftShareInviteBank.php
+++ b/src/Model/Generated/Endpoint/DraftShareInviteBank.php
@@ -323,4 +323,40 @@ public function setId($id)
     {
         $this->id = $id;
     }
+
+    /**
+     * @return bool
+     */
+    public function isAllFieldNull()
+    {
+        if (!is_null($this->userAliasCreated)) {
+            return false;
+        }
+
+        if (!is_null($this->status)) {
+            return false;
+        }
+
+        if (!is_null($this->expiration)) {
+            return false;
+        }
+
+        if (!is_null($this->shareInviteBankResponseId)) {
+            return false;
+        }
+
+        if (!is_null($this->draftShareUrl)) {
+            return false;
+        }
+
+        if (!is_null($this->draftShareSettings)) {
+            return false;
+        }
+
+        if (!is_null($this->id)) {
+            return false;
+        }
+
+        return true;
+    }
 }
diff --git a/src/Model/Generated/Endpoint/DraftShareInviteBankQrCodeContent.php b/src/Model/Generated/Endpoint/DraftShareInviteBankQrCodeContent.php
index 10cee91a..d4c1df62 100644
--- a/src/Model/Generated/Endpoint/DraftShareInviteBankQrCodeContent.php
+++ b/src/Model/Generated/Endpoint/DraftShareInviteBankQrCodeContent.php
@@ -56,4 +56,12 @@ public static function listing(ApiContext $apiContext, int $userId, int $draftSh
             new BunqResponse($responseRaw->getBodyString(), $responseRaw->getHeaders())
         );
     }
+
+    /**
+     * @return bool
+     */
+    public function isAllFieldNull()
+    {
+        return true;
+    }
 }
diff --git a/src/Model/Generated/Endpoint/ExportAnnualOverview.php b/src/Model/Generated/Endpoint/ExportAnnualOverview.php
index de5fac8b..8252d3c7 100644
--- a/src/Model/Generated/Endpoint/ExportAnnualOverview.php
+++ b/src/Model/Generated/Endpoint/ExportAnnualOverview.php
@@ -242,4 +242,32 @@ public function setAliasUser($aliasUser)
     {
         $this->aliasUser = $aliasUser;
     }
+
+    /**
+     * @return bool
+     */
+    public function isAllFieldNull()
+    {
+        if (!is_null($this->id)) {
+            return false;
+        }
+
+        if (!is_null($this->created)) {
+            return false;
+        }
+
+        if (!is_null($this->updated)) {
+            return false;
+        }
+
+        if (!is_null($this->year)) {
+            return false;
+        }
+
+        if (!is_null($this->aliasUser)) {
+            return false;
+        }
+
+        return true;
+    }
 }
diff --git a/src/Model/Generated/Endpoint/ExportAnnualOverviewContent.php b/src/Model/Generated/Endpoint/ExportAnnualOverviewContent.php
index f904f426..d3aa9491 100644
--- a/src/Model/Generated/Endpoint/ExportAnnualOverviewContent.php
+++ b/src/Model/Generated/Endpoint/ExportAnnualOverviewContent.php
@@ -54,4 +54,12 @@ public static function listing(ApiContext $apiContext, int $userId, int $exportA
             new BunqResponse($responseRaw->getBodyString(), $responseRaw->getHeaders())
         );
     }
+
+    /**
+     * @return bool
+     */
+    public function isAllFieldNull()
+    {
+        return true;
+    }
 }
diff --git a/src/Model/Generated/Endpoint/IdealMerchantTransaction.php b/src/Model/Generated/Endpoint/IdealMerchantTransaction.php
index 1eaf6704..a7f58ae2 100644
--- a/src/Model/Generated/Endpoint/IdealMerchantTransaction.php
+++ b/src/Model/Generated/Endpoint/IdealMerchantTransaction.php
@@ -465,4 +465,68 @@ public function setAllowChat($allowChat)
     {
         $this->allowChat = $allowChat;
     }
+
+    /**
+     * @return bool
+     */
+    public function isAllFieldNull()
+    {
+        if (!is_null($this->monetaryAccountId)) {
+            return false;
+        }
+
+        if (!is_null($this->alias)) {
+            return false;
+        }
+
+        if (!is_null($this->counterpartyAlias)) {
+            return false;
+        }
+
+        if (!is_null($this->amountGuaranteed)) {
+            return false;
+        }
+
+        if (!is_null($this->amountRequested)) {
+            return false;
+        }
+
+        if (!is_null($this->expiration)) {
+            return false;
+        }
+
+        if (!is_null($this->issuer)) {
+            return false;
+        }
+
+        if (!is_null($this->issuerName)) {
+            return false;
+        }
+
+        if (!is_null($this->issuerAuthenticationUrl)) {
+            return false;
+        }
+
+        if (!is_null($this->purchaseIdentifier)) {
+            return false;
+        }
+
+        if (!is_null($this->status)) {
+            return false;
+        }
+
+        if (!is_null($this->statusTimestamp)) {
+            return false;
+        }
+
+        if (!is_null($this->transactionIdentifier)) {
+            return false;
+        }
+
+        if (!is_null($this->allowChat)) {
+            return false;
+        }
+
+        return true;
+    }
 }
diff --git a/src/Model/Generated/Endpoint/InstallationServerPublicKey.php b/src/Model/Generated/Endpoint/InstallationServerPublicKey.php
index f62294df..ec77d621 100644
--- a/src/Model/Generated/Endpoint/InstallationServerPublicKey.php
+++ b/src/Model/Generated/Endpoint/InstallationServerPublicKey.php
@@ -79,4 +79,16 @@ public function setServerPublicKey($serverPublicKey)
     {
         $this->serverPublicKey = $serverPublicKey;
     }
+
+    /**
+     * @return bool
+     */
+    public function isAllFieldNull()
+    {
+        if (!is_null($this->serverPublicKey)) {
+            return false;
+        }
+
+        return true;
+    }
 }
diff --git a/src/Model/Generated/Endpoint/Invoice.php b/src/Model/Generated/Endpoint/Invoice.php
index bba343d3..7ab32142 100644
--- a/src/Model/Generated/Endpoint/Invoice.php
+++ b/src/Model/Generated/Endpoint/Invoice.php
@@ -491,4 +491,76 @@ public function setVatNumber($vatNumber)
     {
         $this->vatNumber = $vatNumber;
     }
+
+    /**
+     * @return bool
+     */
+    public function isAllFieldNull()
+    {
+        if (!is_null($this->id)) {
+            return false;
+        }
+
+        if (!is_null($this->created)) {
+            return false;
+        }
+
+        if (!is_null($this->updated)) {
+            return false;
+        }
+
+        if (!is_null($this->invoiceDate)) {
+            return false;
+        }
+
+        if (!is_null($this->invoiceNumber)) {
+            return false;
+        }
+
+        if (!is_null($this->status)) {
+            return false;
+        }
+
+        if (!is_null($this->group)) {
+            return false;
+        }
+
+        if (!is_null($this->totalVatInclusive)) {
+            return false;
+        }
+
+        if (!is_null($this->totalVatExclusive)) {
+            return false;
+        }
+
+        if (!is_null($this->totalVat)) {
+            return false;
+        }
+
+        if (!is_null($this->alias)) {
+            return false;
+        }
+
+        if (!is_null($this->address)) {
+            return false;
+        }
+
+        if (!is_null($this->counterpartyAlias)) {
+            return false;
+        }
+
+        if (!is_null($this->counterpartyAddress)) {
+            return false;
+        }
+
+        if (!is_null($this->chamberOfCommerceNumber)) {
+            return false;
+        }
+
+        if (!is_null($this->vatNumber)) {
+            return false;
+        }
+
+        return true;
+    }
 }
diff --git a/src/Model/Generated/Endpoint/InvoiceByUser.php b/src/Model/Generated/Endpoint/InvoiceByUser.php
index e8967a7e..87bb6ab7 100644
--- a/src/Model/Generated/Endpoint/InvoiceByUser.php
+++ b/src/Model/Generated/Endpoint/InvoiceByUser.php
@@ -482,4 +482,76 @@ public function setVatNumber($vatNumber)
     {
         $this->vatNumber = $vatNumber;
     }
+
+    /**
+     * @return bool
+     */
+    public function isAllFieldNull()
+    {
+        if (!is_null($this->id)) {
+            return false;
+        }
+
+        if (!is_null($this->created)) {
+            return false;
+        }
+
+        if (!is_null($this->updated)) {
+            return false;
+        }
+
+        if (!is_null($this->invoiceDate)) {
+            return false;
+        }
+
+        if (!is_null($this->invoiceNumber)) {
+            return false;
+        }
+
+        if (!is_null($this->status)) {
+            return false;
+        }
+
+        if (!is_null($this->group)) {
+            return false;
+        }
+
+        if (!is_null($this->totalVatInclusive)) {
+            return false;
+        }
+
+        if (!is_null($this->totalVatExclusive)) {
+            return false;
+        }
+
+        if (!is_null($this->totalVat)) {
+            return false;
+        }
+
+        if (!is_null($this->alias)) {
+            return false;
+        }
+
+        if (!is_null($this->address)) {
+            return false;
+        }
+
+        if (!is_null($this->counterpartyAlias)) {
+            return false;
+        }
+
+        if (!is_null($this->counterpartyAddress)) {
+            return false;
+        }
+
+        if (!is_null($this->chamberOfCommerceNumber)) {
+            return false;
+        }
+
+        if (!is_null($this->vatNumber)) {
+            return false;
+        }
+
+        return true;
+    }
 }
diff --git a/src/Model/Generated/Endpoint/MasterCardAction.php b/src/Model/Generated/Endpoint/MasterCardAction.php
index a5accdd6..a8efce6e 100644
--- a/src/Model/Generated/Endpoint/MasterCardAction.php
+++ b/src/Model/Generated/Endpoint/MasterCardAction.php
@@ -666,4 +666,104 @@ public function setEligibleWhitelistId($eligibleWhitelistId)
     {
         $this->eligibleWhitelistId = $eligibleWhitelistId;
     }
+
+    /**
+     * @return bool
+     */
+    public function isAllFieldNull()
+    {
+        if (!is_null($this->monetaryAccountId)) {
+            return false;
+        }
+
+        if (!is_null($this->cardId)) {
+            return false;
+        }
+
+        if (!is_null($this->amountLocal)) {
+            return false;
+        }
+
+        if (!is_null($this->amountBilling)) {
+            return false;
+        }
+
+        if (!is_null($this->amountOriginalLocal)) {
+            return false;
+        }
+
+        if (!is_null($this->amountOriginalBilling)) {
+            return false;
+        }
+
+        if (!is_null($this->amountFee)) {
+            return false;
+        }
+
+        if (!is_null($this->decision)) {
+            return false;
+        }
+
+        if (!is_null($this->decisionDescription)) {
+            return false;
+        }
+
+        if (!is_null($this->decisionDescriptionTranslated)) {
+            return false;
+        }
+
+        if (!is_null($this->description)) {
+            return false;
+        }
+
+        if (!is_null($this->authorisationStatus)) {
+            return false;
+        }
+
+        if (!is_null($this->authorisationType)) {
+            return false;
+        }
+
+        if (!is_null($this->panEntryModeUser)) {
+            return false;
+        }
+
+        if (!is_null($this->city)) {
+            return false;
+        }
+
+        if (!is_null($this->alias)) {
+            return false;
+        }
+
+        if (!is_null($this->counterpartyAlias)) {
+            return false;
+        }
+
+        if (!is_null($this->labelCard)) {
+            return false;
+        }
+
+        if (!is_null($this->tokenStatus)) {
+            return false;
+        }
+
+        if (!is_null($this->reservationExpiryTime)) {
+            return false;
+        }
+
+        if (!is_null($this->appliedLimit)) {
+            return false;
+        }
+
+        if (!is_null($this->allowChat)) {
+            return false;
+        }
+
+        if (!is_null($this->eligibleWhitelistId)) {
+            return false;
+        }
+
+        return true;
+    }
 }
diff --git a/src/Model/Generated/Endpoint/MonetaryAccount.php b/src/Model/Generated/Endpoint/MonetaryAccount.php
index 0587e034..b0b4f397 100644
--- a/src/Model/Generated/Endpoint/MonetaryAccount.php
+++ b/src/Model/Generated/Endpoint/MonetaryAccount.php
@@ -5,6 +5,7 @@
 use bunq\exception\BunqException;
 use bunq\Http\ApiClient;
 use bunq\Http\BunqResponse;
+use bunq\Model\Core\AnchorObjectInterface;
 use bunq\Model\Core\BunqModel;
 
 /**
@@ -16,7 +17,7 @@
  *
  * @generated
  */
-class MonetaryAccount extends BunqModel
+class MonetaryAccount extends BunqModel implements AnchorObjectInterface
 {
     /**
      * Error constants.
@@ -124,4 +125,16 @@ public function getReferencedObject()
 
         throw new BunqException(self::ERROR_NULL_FIELDS);
     }
+
+    /**
+     * @return bool
+     */
+    public function isAllFieldNull()
+    {
+        if (!is_null($this->monetaryAccountBank)) {
+            return false;
+        }
+
+        return true;
+    }
 }
diff --git a/src/Model/Generated/Endpoint/MonetaryAccountBank.php b/src/Model/Generated/Endpoint/MonetaryAccountBank.php
index dc732896..9a62785f 100644
--- a/src/Model/Generated/Endpoint/MonetaryAccountBank.php
+++ b/src/Model/Generated/Endpoint/MonetaryAccountBank.php
@@ -685,4 +685,92 @@ public function setSetting($setting)
     {
         $this->setting = $setting;
     }
+
+    /**
+     * @return bool
+     */
+    public function isAllFieldNull()
+    {
+        if (!is_null($this->id)) {
+            return false;
+        }
+
+        if (!is_null($this->created)) {
+            return false;
+        }
+
+        if (!is_null($this->updated)) {
+            return false;
+        }
+
+        if (!is_null($this->avatar)) {
+            return false;
+        }
+
+        if (!is_null($this->currency)) {
+            return false;
+        }
+
+        if (!is_null($this->description)) {
+            return false;
+        }
+
+        if (!is_null($this->dailyLimit)) {
+            return false;
+        }
+
+        if (!is_null($this->dailySpent)) {
+            return false;
+        }
+
+        if (!is_null($this->overdraftLimit)) {
+            return false;
+        }
+
+        if (!is_null($this->balance)) {
+            return false;
+        }
+
+        if (!is_null($this->alias)) {
+            return false;
+        }
+
+        if (!is_null($this->publicUuid)) {
+            return false;
+        }
+
+        if (!is_null($this->status)) {
+            return false;
+        }
+
+        if (!is_null($this->subStatus)) {
+            return false;
+        }
+
+        if (!is_null($this->reason)) {
+            return false;
+        }
+
+        if (!is_null($this->reasonDescription)) {
+            return false;
+        }
+
+        if (!is_null($this->userId)) {
+            return false;
+        }
+
+        if (!is_null($this->monetaryAccountProfile)) {
+            return false;
+        }
+
+        if (!is_null($this->notificationFilters)) {
+            return false;
+        }
+
+        if (!is_null($this->setting)) {
+            return false;
+        }
+
+        return true;
+    }
 }
diff --git a/src/Model/Generated/Endpoint/MonetaryAccountProfile.php b/src/Model/Generated/Endpoint/MonetaryAccountProfile.php
index 624b4039..cbdc9eee 100644
--- a/src/Model/Generated/Endpoint/MonetaryAccountProfile.php
+++ b/src/Model/Generated/Endpoint/MonetaryAccountProfile.php
@@ -73,4 +73,20 @@ public function setProfileDrain($profileDrain)
     {
         $this->profileDrain = $profileDrain;
     }
+
+    /**
+     * @return bool
+     */
+    public function isAllFieldNull()
+    {
+        if (!is_null($this->profileFill)) {
+            return false;
+        }
+
+        if (!is_null($this->profileDrain)) {
+            return false;
+        }
+
+        return true;
+    }
 }
diff --git a/src/Model/Generated/Endpoint/Payment.php b/src/Model/Generated/Endpoint/Payment.php
index 6a657b71..47891a0f 100644
--- a/src/Model/Generated/Endpoint/Payment.php
+++ b/src/Model/Generated/Endpoint/Payment.php
@@ -728,4 +728,104 @@ public function setAllowChat($allowChat)
     {
         $this->allowChat = $allowChat;
     }
+
+    /**
+     * @return bool
+     */
+    public function isAllFieldNull()
+    {
+        if (!is_null($this->id)) {
+            return false;
+        }
+
+        if (!is_null($this->created)) {
+            return false;
+        }
+
+        if (!is_null($this->updated)) {
+            return false;
+        }
+
+        if (!is_null($this->monetaryAccountId)) {
+            return false;
+        }
+
+        if (!is_null($this->amount)) {
+            return false;
+        }
+
+        if (!is_null($this->alias)) {
+            return false;
+        }
+
+        if (!is_null($this->counterpartyAlias)) {
+            return false;
+        }
+
+        if (!is_null($this->description)) {
+            return false;
+        }
+
+        if (!is_null($this->type)) {
+            return false;
+        }
+
+        if (!is_null($this->subType)) {
+            return false;
+        }
+
+        if (!is_null($this->bunqtoStatus)) {
+            return false;
+        }
+
+        if (!is_null($this->bunqtoSubStatus)) {
+            return false;
+        }
+
+        if (!is_null($this->bunqtoShareUrl)) {
+            return false;
+        }
+
+        if (!is_null($this->bunqtoExpiry)) {
+            return false;
+        }
+
+        if (!is_null($this->bunqtoTimeResponded)) {
+            return false;
+        }
+
+        if (!is_null($this->attachment)) {
+            return false;
+        }
+
+        if (!is_null($this->merchantReference)) {
+            return false;
+        }
+
+        if (!is_null($this->batchId)) {
+            return false;
+        }
+
+        if (!is_null($this->scheduledId)) {
+            return false;
+        }
+
+        if (!is_null($this->addressShipping)) {
+            return false;
+        }
+
+        if (!is_null($this->addressBilling)) {
+            return false;
+        }
+
+        if (!is_null($this->geolocation)) {
+            return false;
+        }
+
+        if (!is_null($this->allowChat)) {
+            return false;
+        }
+
+        return true;
+    }
 }
diff --git a/src/Model/Generated/Endpoint/PaymentBatch.php b/src/Model/Generated/Endpoint/PaymentBatch.php
index d93fb4ee..750a97e7 100644
--- a/src/Model/Generated/Endpoint/PaymentBatch.php
+++ b/src/Model/Generated/Endpoint/PaymentBatch.php
@@ -175,4 +175,16 @@ public function setPayments($payments)
     {
         $this->payments = $payments;
     }
+
+    /**
+     * @return bool
+     */
+    public function isAllFieldNull()
+    {
+        if (!is_null($this->payments)) {
+            return false;
+        }
+
+        return true;
+    }
 }
diff --git a/src/Model/Generated/Endpoint/PaymentChat.php b/src/Model/Generated/Endpoint/PaymentChat.php
index 378d0e5d..cfbc9d30 100644
--- a/src/Model/Generated/Endpoint/PaymentChat.php
+++ b/src/Model/Generated/Endpoint/PaymentChat.php
@@ -220,4 +220,28 @@ public function setUnreadMessageCount($unreadMessageCount)
     {
         $this->unreadMessageCount = $unreadMessageCount;
     }
+
+    /**
+     * @return bool
+     */
+    public function isAllFieldNull()
+    {
+        if (!is_null($this->id)) {
+            return false;
+        }
+
+        if (!is_null($this->created)) {
+            return false;
+        }
+
+        if (!is_null($this->updated)) {
+            return false;
+        }
+
+        if (!is_null($this->unreadMessageCount)) {
+            return false;
+        }
+
+        return true;
+    }
 }
diff --git a/src/Model/Generated/Endpoint/PermittedIp.php b/src/Model/Generated/Endpoint/PermittedIp.php
index f3288067..dc91b46a 100644
--- a/src/Model/Generated/Endpoint/PermittedIp.php
+++ b/src/Model/Generated/Endpoint/PermittedIp.php
@@ -194,4 +194,20 @@ public function setStatus($status)
     {
         $this->status = $status;
     }
+
+    /**
+     * @return bool
+     */
+    public function isAllFieldNull()
+    {
+        if (!is_null($this->ip)) {
+            return false;
+        }
+
+        if (!is_null($this->status)) {
+            return false;
+        }
+
+        return true;
+    }
 }
diff --git a/src/Model/Generated/Endpoint/PromotionDisplay.php b/src/Model/Generated/Endpoint/PromotionDisplay.php
index 7efd7ce0..5e0ea07a 100644
--- a/src/Model/Generated/Endpoint/PromotionDisplay.php
+++ b/src/Model/Generated/Endpoint/PromotionDisplay.php
@@ -181,4 +181,28 @@ public function setStatus($status)
     {
         $this->status = $status;
     }
+
+    /**
+     * @return bool
+     */
+    public function isAllFieldNull()
+    {
+        if (!is_null($this->id)) {
+            return false;
+        }
+
+        if (!is_null($this->counterpartyAlias)) {
+            return false;
+        }
+
+        if (!is_null($this->eventDescription)) {
+            return false;
+        }
+
+        if (!is_null($this->status)) {
+            return false;
+        }
+
+        return true;
+    }
 }
diff --git a/src/Model/Generated/Endpoint/RequestInquiry.php b/src/Model/Generated/Endpoint/RequestInquiry.php
index 0b614a91..e0ed4fa7 100644
--- a/src/Model/Generated/Endpoint/RequestInquiry.php
+++ b/src/Model/Generated/Endpoint/RequestInquiry.php
@@ -808,4 +808,112 @@ public function setAllowChat($allowChat)
     {
         $this->allowChat = $allowChat;
     }
+
+    /**
+     * @return bool
+     */
+    public function isAllFieldNull()
+    {
+        if (!is_null($this->id)) {
+            return false;
+        }
+
+        if (!is_null($this->created)) {
+            return false;
+        }
+
+        if (!is_null($this->updated)) {
+            return false;
+        }
+
+        if (!is_null($this->timeResponded)) {
+            return false;
+        }
+
+        if (!is_null($this->timeExpiry)) {
+            return false;
+        }
+
+        if (!is_null($this->monetaryAccountId)) {
+            return false;
+        }
+
+        if (!is_null($this->amountInquired)) {
+            return false;
+        }
+
+        if (!is_null($this->amountResponded)) {
+            return false;
+        }
+
+        if (!is_null($this->userAliasCreated)) {
+            return false;
+        }
+
+        if (!is_null($this->userAliasRevoked)) {
+            return false;
+        }
+
+        if (!is_null($this->counterpartyAlias)) {
+            return false;
+        }
+
+        if (!is_null($this->description)) {
+            return false;
+        }
+
+        if (!is_null($this->merchantReference)) {
+            return false;
+        }
+
+        if (!is_null($this->attachment)) {
+            return false;
+        }
+
+        if (!is_null($this->status)) {
+            return false;
+        }
+
+        if (!is_null($this->batchId)) {
+            return false;
+        }
+
+        if (!is_null($this->scheduledId)) {
+            return false;
+        }
+
+        if (!is_null($this->minimumAge)) {
+            return false;
+        }
+
+        if (!is_null($this->requireAddress)) {
+            return false;
+        }
+
+        if (!is_null($this->bunqmeShareUrl)) {
+            return false;
+        }
+
+        if (!is_null($this->redirectUrl)) {
+            return false;
+        }
+
+        if (!is_null($this->addressShipping)) {
+            return false;
+        }
+
+        if (!is_null($this->addressBilling)) {
+            return false;
+        }
+
+        if (!is_null($this->geolocation)) {
+            return false;
+        }
+
+        if (!is_null($this->allowChat)) {
+            return false;
+        }
+
+        return true;
+    }
 }
diff --git a/src/Model/Generated/Endpoint/RequestInquiryBatch.php b/src/Model/Generated/Endpoint/RequestInquiryBatch.php
index ed9f109e..f5ad5c89 100644
--- a/src/Model/Generated/Endpoint/RequestInquiryBatch.php
+++ b/src/Model/Generated/Endpoint/RequestInquiryBatch.php
@@ -202,4 +202,20 @@ public function setTotalAmountInquired($totalAmountInquired)
     {
         $this->totalAmountInquired = $totalAmountInquired;
     }
+
+    /**
+     * @return bool
+     */
+    public function isAllFieldNull()
+    {
+        if (!is_null($this->requestInquiries)) {
+            return false;
+        }
+
+        if (!is_null($this->totalAmountInquired)) {
+            return false;
+        }
+
+        return true;
+    }
 }
diff --git a/src/Model/Generated/Endpoint/RequestInquiryChat.php b/src/Model/Generated/Endpoint/RequestInquiryChat.php
index 6723767e..f9bd6000 100644
--- a/src/Model/Generated/Endpoint/RequestInquiryChat.php
+++ b/src/Model/Generated/Endpoint/RequestInquiryChat.php
@@ -224,4 +224,28 @@ public function setUnreadMessageCount($unreadMessageCount)
     {
         $this->unreadMessageCount = $unreadMessageCount;
     }
+
+    /**
+     * @return bool
+     */
+    public function isAllFieldNull()
+    {
+        if (!is_null($this->id)) {
+            return false;
+        }
+
+        if (!is_null($this->created)) {
+            return false;
+        }
+
+        if (!is_null($this->updated)) {
+            return false;
+        }
+
+        if (!is_null($this->unreadMessageCount)) {
+            return false;
+        }
+
+        return true;
+    }
 }
diff --git a/src/Model/Generated/Endpoint/RequestResponse.php b/src/Model/Generated/Endpoint/RequestResponse.php
index 113f34d9..f0f45a50 100644
--- a/src/Model/Generated/Endpoint/RequestResponse.php
+++ b/src/Model/Generated/Endpoint/RequestResponse.php
@@ -776,4 +776,112 @@ public function setEligibleWhitelistId($eligibleWhitelistId)
     {
         $this->eligibleWhitelistId = $eligibleWhitelistId;
     }
+
+    /**
+     * @return bool
+     */
+    public function isAllFieldNull()
+    {
+        if (!is_null($this->id)) {
+            return false;
+        }
+
+        if (!is_null($this->created)) {
+            return false;
+        }
+
+        if (!is_null($this->updated)) {
+            return false;
+        }
+
+        if (!is_null($this->timeResponded)) {
+            return false;
+        }
+
+        if (!is_null($this->timeExpiry)) {
+            return false;
+        }
+
+        if (!is_null($this->monetaryAccountId)) {
+            return false;
+        }
+
+        if (!is_null($this->amountInquired)) {
+            return false;
+        }
+
+        if (!is_null($this->amountResponded)) {
+            return false;
+        }
+
+        if (!is_null($this->status)) {
+            return false;
+        }
+
+        if (!is_null($this->description)) {
+            return false;
+        }
+
+        if (!is_null($this->alias)) {
+            return false;
+        }
+
+        if (!is_null($this->counterpartyAlias)) {
+            return false;
+        }
+
+        if (!is_null($this->attachment)) {
+            return false;
+        }
+
+        if (!is_null($this->minimumAge)) {
+            return false;
+        }
+
+        if (!is_null($this->requireAddress)) {
+            return false;
+        }
+
+        if (!is_null($this->geolocation)) {
+            return false;
+        }
+
+        if (!is_null($this->type)) {
+            return false;
+        }
+
+        if (!is_null($this->subType)) {
+            return false;
+        }
+
+        if (!is_null($this->redirectUrl)) {
+            return false;
+        }
+
+        if (!is_null($this->addressBilling)) {
+            return false;
+        }
+
+        if (!is_null($this->addressShipping)) {
+            return false;
+        }
+
+        if (!is_null($this->allowChat)) {
+            return false;
+        }
+
+        if (!is_null($this->creditSchemeIdentifier)) {
+            return false;
+        }
+
+        if (!is_null($this->mandateIdentifier)) {
+            return false;
+        }
+
+        if (!is_null($this->eligibleWhitelistId)) {
+            return false;
+        }
+
+        return true;
+    }
 }
diff --git a/src/Model/Generated/Endpoint/RequestResponseChat.php b/src/Model/Generated/Endpoint/RequestResponseChat.php
index 2e06ca51..98bfb4a2 100644
--- a/src/Model/Generated/Endpoint/RequestResponseChat.php
+++ b/src/Model/Generated/Endpoint/RequestResponseChat.php
@@ -224,4 +224,28 @@ public function setUnreadMessageCount($unreadMessageCount)
     {
         $this->unreadMessageCount = $unreadMessageCount;
     }
+
+    /**
+     * @return bool
+     */
+    public function isAllFieldNull()
+    {
+        if (!is_null($this->id)) {
+            return false;
+        }
+
+        if (!is_null($this->created)) {
+            return false;
+        }
+
+        if (!is_null($this->updated)) {
+            return false;
+        }
+
+        if (!is_null($this->unreadMessageCount)) {
+            return false;
+        }
+
+        return true;
+    }
 }
diff --git a/src/Model/Generated/Endpoint/Schedule.php b/src/Model/Generated/Endpoint/Schedule.php
index 8f213bad..78eb4037 100644
--- a/src/Model/Generated/Endpoint/Schedule.php
+++ b/src/Model/Generated/Endpoint/Schedule.php
@@ -249,4 +249,36 @@ public function setObject($object)
     {
         $this->object = $object;
     }
+
+    /**
+     * @return bool
+     */
+    public function isAllFieldNull()
+    {
+        if (!is_null($this->timeStart)) {
+            return false;
+        }
+
+        if (!is_null($this->timeEnd)) {
+            return false;
+        }
+
+        if (!is_null($this->recurrenceUnit)) {
+            return false;
+        }
+
+        if (!is_null($this->recurrenceSize)) {
+            return false;
+        }
+
+        if (!is_null($this->status)) {
+            return false;
+        }
+
+        if (!is_null($this->object)) {
+            return false;
+        }
+
+        return true;
+    }
 }
diff --git a/src/Model/Generated/Endpoint/ScheduleInstance.php b/src/Model/Generated/Endpoint/ScheduleInstance.php
index 2384ba04..48f41204 100644
--- a/src/Model/Generated/Endpoint/ScheduleInstance.php
+++ b/src/Model/Generated/Endpoint/ScheduleInstance.php
@@ -271,4 +271,36 @@ public function setResultObject($resultObject)
     {
         $this->resultObject = $resultObject;
     }
+
+    /**
+     * @return bool
+     */
+    public function isAllFieldNull()
+    {
+        if (!is_null($this->state)) {
+            return false;
+        }
+
+        if (!is_null($this->timeStart)) {
+            return false;
+        }
+
+        if (!is_null($this->timeEnd)) {
+            return false;
+        }
+
+        if (!is_null($this->errorMessage)) {
+            return false;
+        }
+
+        if (!is_null($this->scheduledObject)) {
+            return false;
+        }
+
+        if (!is_null($this->resultObject)) {
+            return false;
+        }
+
+        return true;
+    }
 }
diff --git a/src/Model/Generated/Endpoint/SchedulePayment.php b/src/Model/Generated/Endpoint/SchedulePayment.php
index 794e42ad..59057587 100644
--- a/src/Model/Generated/Endpoint/SchedulePayment.php
+++ b/src/Model/Generated/Endpoint/SchedulePayment.php
@@ -216,4 +216,20 @@ public function setSchedule($schedule)
     {
         $this->schedule = $schedule;
     }
+
+    /**
+     * @return bool
+     */
+    public function isAllFieldNull()
+    {
+        if (!is_null($this->payment)) {
+            return false;
+        }
+
+        if (!is_null($this->schedule)) {
+            return false;
+        }
+
+        return true;
+    }
 }
diff --git a/src/Model/Generated/Endpoint/SchedulePaymentBatch.php b/src/Model/Generated/Endpoint/SchedulePaymentBatch.php
index e5403844..e0116ffb 100644
--- a/src/Model/Generated/Endpoint/SchedulePaymentBatch.php
+++ b/src/Model/Generated/Endpoint/SchedulePaymentBatch.php
@@ -159,4 +159,20 @@ public function setSchedule($schedule)
     {
         $this->schedule = $schedule;
     }
+
+    /**
+     * @return bool
+     */
+    public function isAllFieldNull()
+    {
+        if (!is_null($this->payments)) {
+            return false;
+        }
+
+        if (!is_null($this->schedule)) {
+            return false;
+        }
+
+        return true;
+    }
 }
diff --git a/src/Model/Generated/Endpoint/ScheduleUser.php b/src/Model/Generated/Endpoint/ScheduleUser.php
index 5e57971f..e40fedfc 100644
--- a/src/Model/Generated/Endpoint/ScheduleUser.php
+++ b/src/Model/Generated/Endpoint/ScheduleUser.php
@@ -57,4 +57,12 @@ public static function listing(ApiContext $apiContext, int $userId, array $param
             static::fromJsonList($responseRaw, self::OBJECT_TYPE)
         );
     }
+
+    /**
+     * @return bool
+     */
+    public function isAllFieldNull()
+    {
+        return true;
+    }
 }
diff --git a/src/Model/Generated/Endpoint/Session.php b/src/Model/Generated/Endpoint/Session.php
index 8025a1a4..034c92ab 100644
--- a/src/Model/Generated/Endpoint/Session.php
+++ b/src/Model/Generated/Endpoint/Session.php
@@ -47,4 +47,12 @@ public static function delete(ApiContext $apiContext, int $sessionId, array $cus
             new BunqResponse(null, $responseRaw->getHeaders())
         );
     }
+
+    /**
+     * @return bool
+     */
+    public function isAllFieldNull()
+    {
+        return true;
+    }
 }
diff --git a/src/Model/Generated/Endpoint/ShareInviteBankAmountUsed.php b/src/Model/Generated/Endpoint/ShareInviteBankAmountUsed.php
index f077d90b..7db9c0cc 100644
--- a/src/Model/Generated/Endpoint/ShareInviteBankAmountUsed.php
+++ b/src/Model/Generated/Endpoint/ShareInviteBankAmountUsed.php
@@ -55,4 +55,12 @@ public static function delete(ApiContext $apiContext, int $userId, int $monetary
             new BunqResponse(null, $responseRaw->getHeaders())
         );
     }
+
+    /**
+     * @return bool
+     */
+    public function isAllFieldNull()
+    {
+        return true;
+    }
 }
diff --git a/src/Model/Generated/Endpoint/ShareInviteBankInquiry.php b/src/Model/Generated/Endpoint/ShareInviteBankInquiry.php
index e92c7002..38405792 100644
--- a/src/Model/Generated/Endpoint/ShareInviteBankInquiry.php
+++ b/src/Model/Generated/Endpoint/ShareInviteBankInquiry.php
@@ -468,4 +468,60 @@ public function setId($id)
     {
         $this->id = $id;
     }
+
+    /**
+     * @return bool
+     */
+    public function isAllFieldNull()
+    {
+        if (!is_null($this->alias)) {
+            return false;
+        }
+
+        if (!is_null($this->userAliasCreated)) {
+            return false;
+        }
+
+        if (!is_null($this->userAliasRevoked)) {
+            return false;
+        }
+
+        if (!is_null($this->counterUserAlias)) {
+            return false;
+        }
+
+        if (!is_null($this->monetaryAccountId)) {
+            return false;
+        }
+
+        if (!is_null($this->draftShareInviteBankId)) {
+            return false;
+        }
+
+        if (!is_null($this->shareDetail)) {
+            return false;
+        }
+
+        if (!is_null($this->status)) {
+            return false;
+        }
+
+        if (!is_null($this->shareType)) {
+            return false;
+        }
+
+        if (!is_null($this->startDate)) {
+            return false;
+        }
+
+        if (!is_null($this->endDate)) {
+            return false;
+        }
+
+        if (!is_null($this->id)) {
+            return false;
+        }
+
+        return true;
+    }
 }
diff --git a/src/Model/Generated/Endpoint/ShareInviteBankResponse.php b/src/Model/Generated/Endpoint/ShareInviteBankResponse.php
index 64be6cb6..449e82e0 100644
--- a/src/Model/Generated/Endpoint/ShareInviteBankResponse.php
+++ b/src/Model/Generated/Endpoint/ShareInviteBankResponse.php
@@ -379,4 +379,52 @@ public function setDescription($description)
     {
         $this->description = $description;
     }
+
+    /**
+     * @return bool
+     */
+    public function isAllFieldNull()
+    {
+        if (!is_null($this->counterAlias)) {
+            return false;
+        }
+
+        if (!is_null($this->userAliasCancelled)) {
+            return false;
+        }
+
+        if (!is_null($this->monetaryAccountId)) {
+            return false;
+        }
+
+        if (!is_null($this->draftShareInviteBankId)) {
+            return false;
+        }
+
+        if (!is_null($this->shareDetail)) {
+            return false;
+        }
+
+        if (!is_null($this->status)) {
+            return false;
+        }
+
+        if (!is_null($this->shareType)) {
+            return false;
+        }
+
+        if (!is_null($this->startDate)) {
+            return false;
+        }
+
+        if (!is_null($this->endDate)) {
+            return false;
+        }
+
+        if (!is_null($this->description)) {
+            return false;
+        }
+
+        return true;
+    }
 }
diff --git a/src/Model/Generated/Endpoint/Tab.php b/src/Model/Generated/Endpoint/Tab.php
index c890c247..5fb37b6a 100644
--- a/src/Model/Generated/Endpoint/Tab.php
+++ b/src/Model/Generated/Endpoint/Tab.php
@@ -5,6 +5,7 @@
 use bunq\exception\BunqException;
 use bunq\Http\ApiClient;
 use bunq\Http\BunqResponse;
+use bunq\Model\Core\AnchorObjectInterface;
 use bunq\Model\Core\BunqModel;
 
 /**
@@ -18,7 +19,7 @@
  *
  * @generated
  */
-class Tab extends BunqModel
+class Tab extends BunqModel implements AnchorObjectInterface
 {
     /**
      * Error constants.
@@ -155,4 +156,20 @@ public function getReferencedObject()
 
         throw new BunqException(self::ERROR_NULL_FIELDS);
     }
+
+    /**
+     * @return bool
+     */
+    public function isAllFieldNull()
+    {
+        if (!is_null($this->tabUsageSingle)) {
+            return false;
+        }
+
+        if (!is_null($this->tabUsageMultiple)) {
+            return false;
+        }
+
+        return true;
+    }
 }
diff --git a/src/Model/Generated/Endpoint/TabAttachmentTab.php b/src/Model/Generated/Endpoint/TabAttachmentTab.php
index ec01af97..80bad5e1 100644
--- a/src/Model/Generated/Endpoint/TabAttachmentTab.php
+++ b/src/Model/Generated/Endpoint/TabAttachmentTab.php
@@ -151,4 +151,28 @@ public function setAttachment($attachment)
     {
         $this->attachment = $attachment;
     }
+
+    /**
+     * @return bool
+     */
+    public function isAllFieldNull()
+    {
+        if (!is_null($this->id)) {
+            return false;
+        }
+
+        if (!is_null($this->created)) {
+            return false;
+        }
+
+        if (!is_null($this->updated)) {
+            return false;
+        }
+
+        if (!is_null($this->attachment)) {
+            return false;
+        }
+
+        return true;
+    }
 }
diff --git a/src/Model/Generated/Endpoint/TabAttachmentTabContent.php b/src/Model/Generated/Endpoint/TabAttachmentTabContent.php
index 5252bd5d..b2757137 100644
--- a/src/Model/Generated/Endpoint/TabAttachmentTabContent.php
+++ b/src/Model/Generated/Endpoint/TabAttachmentTabContent.php
@@ -53,4 +53,12 @@ public static function listing(ApiContext $apiContext, string $tabUuid, int $att
             new BunqResponse($responseRaw->getBodyString(), $responseRaw->getHeaders())
         );
     }
+
+    /**
+     * @return bool
+     */
+    public function isAllFieldNull()
+    {
+        return true;
+    }
 }
diff --git a/src/Model/Generated/Endpoint/TabItem.php b/src/Model/Generated/Endpoint/TabItem.php
index e2bec03f..a0aac48b 100644
--- a/src/Model/Generated/Endpoint/TabItem.php
+++ b/src/Model/Generated/Endpoint/TabItem.php
@@ -196,4 +196,40 @@ public function setAmount($amount)
     {
         $this->amount = $amount;
     }
+
+    /**
+     * @return bool
+     */
+    public function isAllFieldNull()
+    {
+        if (!is_null($this->id)) {
+            return false;
+        }
+
+        if (!is_null($this->description)) {
+            return false;
+        }
+
+        if (!is_null($this->eanCode)) {
+            return false;
+        }
+
+        if (!is_null($this->avatarAttachment)) {
+            return false;
+        }
+
+        if (!is_null($this->tabAttachment)) {
+            return false;
+        }
+
+        if (!is_null($this->quantity)) {
+            return false;
+        }
+
+        if (!is_null($this->amount)) {
+            return false;
+        }
+
+        return true;
+    }
 }
diff --git a/src/Model/Generated/Endpoint/TabItemShop.php b/src/Model/Generated/Endpoint/TabItemShop.php
index 0d124c47..45d55f52 100644
--- a/src/Model/Generated/Endpoint/TabItemShop.php
+++ b/src/Model/Generated/Endpoint/TabItemShop.php
@@ -376,4 +376,40 @@ public function setAmount($amount)
     {
         $this->amount = $amount;
     }
+
+    /**
+     * @return bool
+     */
+    public function isAllFieldNull()
+    {
+        if (!is_null($this->id)) {
+            return false;
+        }
+
+        if (!is_null($this->description)) {
+            return false;
+        }
+
+        if (!is_null($this->eanCode)) {
+            return false;
+        }
+
+        if (!is_null($this->avatarAttachment)) {
+            return false;
+        }
+
+        if (!is_null($this->tabAttachment)) {
+            return false;
+        }
+
+        if (!is_null($this->quantity)) {
+            return false;
+        }
+
+        if (!is_null($this->amount)) {
+            return false;
+        }
+
+        return true;
+    }
 }
diff --git a/src/Model/Generated/Endpoint/TabItemShopBatch.php b/src/Model/Generated/Endpoint/TabItemShopBatch.php
index b8e1ed7f..8c2a3d73 100644
--- a/src/Model/Generated/Endpoint/TabItemShopBatch.php
+++ b/src/Model/Generated/Endpoint/TabItemShopBatch.php
@@ -82,4 +82,16 @@ public function setTabItems($tabItems)
     {
         $this->tabItems = $tabItems;
     }
+
+    /**
+     * @return bool
+     */
+    public function isAllFieldNull()
+    {
+        if (!is_null($this->tabItems)) {
+            return false;
+        }
+
+        return true;
+    }
 }
diff --git a/src/Model/Generated/Endpoint/TabQrCodeContent.php b/src/Model/Generated/Endpoint/TabQrCodeContent.php
index 824186c8..d9c10648 100644
--- a/src/Model/Generated/Endpoint/TabQrCodeContent.php
+++ b/src/Model/Generated/Endpoint/TabQrCodeContent.php
@@ -58,4 +58,12 @@ public static function listing(ApiContext $apiContext, int $userId, int $monetar
             new BunqResponse($responseRaw->getBodyString(), $responseRaw->getHeaders())
         );
     }
+
+    /**
+     * @return bool
+     */
+    public function isAllFieldNull()
+    {
+        return true;
+    }
 }
diff --git a/src/Model/Generated/Endpoint/TabResultInquiry.php b/src/Model/Generated/Endpoint/TabResultInquiry.php
index b0189f8e..c02dd3fb 100644
--- a/src/Model/Generated/Endpoint/TabResultInquiry.php
+++ b/src/Model/Generated/Endpoint/TabResultInquiry.php
@@ -138,4 +138,20 @@ public function setPayment($payment)
     {
         $this->payment = $payment;
     }
+
+    /**
+     * @return bool
+     */
+    public function isAllFieldNull()
+    {
+        if (!is_null($this->tab)) {
+            return false;
+        }
+
+        if (!is_null($this->payment)) {
+            return false;
+        }
+
+        return true;
+    }
 }
diff --git a/src/Model/Generated/Endpoint/TabResultResponse.php b/src/Model/Generated/Endpoint/TabResultResponse.php
index b134ab33..2938a023 100644
--- a/src/Model/Generated/Endpoint/TabResultResponse.php
+++ b/src/Model/Generated/Endpoint/TabResultResponse.php
@@ -134,4 +134,20 @@ public function setPayment($payment)
     {
         $this->payment = $payment;
     }
+
+    /**
+     * @return bool
+     */
+    public function isAllFieldNull()
+    {
+        if (!is_null($this->tab)) {
+            return false;
+        }
+
+        if (!is_null($this->payment)) {
+            return false;
+        }
+
+        return true;
+    }
 }
diff --git a/src/Model/Generated/Endpoint/TabUsageMultiple.php b/src/Model/Generated/Endpoint/TabUsageMultiple.php
index 963b7a55..37ac71f0 100644
--- a/src/Model/Generated/Endpoint/TabUsageMultiple.php
+++ b/src/Model/Generated/Endpoint/TabUsageMultiple.php
@@ -644,4 +644,80 @@ public function setTabAttachment($tabAttachment)
     {
         $this->tabAttachment = $tabAttachment;
     }
+
+    /**
+     * @return bool
+     */
+    public function isAllFieldNull()
+    {
+        if (!is_null($this->uuid)) {
+            return false;
+        }
+
+        if (!is_null($this->created)) {
+            return false;
+        }
+
+        if (!is_null($this->updated)) {
+            return false;
+        }
+
+        if (!is_null($this->description)) {
+            return false;
+        }
+
+        if (!is_null($this->status)) {
+            return false;
+        }
+
+        if (!is_null($this->amountTotal)) {
+            return false;
+        }
+
+        if (!is_null($this->qrCodeToken)) {
+            return false;
+        }
+
+        if (!is_null($this->tabUrl)) {
+            return false;
+        }
+
+        if (!is_null($this->visibility)) {
+            return false;
+        }
+
+        if (!is_null($this->minimumAge)) {
+            return false;
+        }
+
+        if (!is_null($this->requireAddress)) {
+            return false;
+        }
+
+        if (!is_null($this->redirectUrl)) {
+            return false;
+        }
+
+        if (!is_null($this->expiration)) {
+            return false;
+        }
+
+        if (!is_null($this->alias)) {
+            return false;
+        }
+
+        if (!is_null($this->cashRegisterLocation)) {
+            return false;
+        }
+
+        if (!is_null($this->tabItem)) {
+            return false;
+        }
+
+        if (!is_null($this->tabAttachment)) {
+            return false;
+        }
+
+        return true;
+    }
 }
diff --git a/src/Model/Generated/Endpoint/TabUsageSingle.php b/src/Model/Generated/Endpoint/TabUsageSingle.php
index b9de3deb..a56f0b59 100644
--- a/src/Model/Generated/Endpoint/TabUsageSingle.php
+++ b/src/Model/Generated/Endpoint/TabUsageSingle.php
@@ -694,4 +694,88 @@ public function setTabAttachment($tabAttachment)
     {
         $this->tabAttachment = $tabAttachment;
     }
+
+    /**
+     * @return bool
+     */
+    public function isAllFieldNull()
+    {
+        if (!is_null($this->uuid)) {
+            return false;
+        }
+
+        if (!is_null($this->created)) {
+            return false;
+        }
+
+        if (!is_null($this->updated)) {
+            return false;
+        }
+
+        if (!is_null($this->merchantReference)) {
+            return false;
+        }
+
+        if (!is_null($this->description)) {
+            return false;
+        }
+
+        if (!is_null($this->status)) {
+            return false;
+        }
+
+        if (!is_null($this->amountTotal)) {
+            return false;
+        }
+
+        if (!is_null($this->amountPaid)) {
+            return false;
+        }
+
+        if (!is_null($this->qrCodeToken)) {
+            return false;
+        }
+
+        if (!is_null($this->tabUrl)) {
+            return false;
+        }
+
+        if (!is_null($this->visibility)) {
+            return false;
+        }
+
+        if (!is_null($this->minimumAge)) {
+            return false;
+        }
+
+        if (!is_null($this->requireAddress)) {
+            return false;
+        }
+
+        if (!is_null($this->redirectUrl)) {
+            return false;
+        }
+
+        if (!is_null($this->expiration)) {
+            return false;
+        }
+
+        if (!is_null($this->alias)) {
+            return false;
+        }
+
+        if (!is_null($this->cashRegisterLocation)) {
+            return false;
+        }
+
+        if (!is_null($this->tabItem)) {
+            return false;
+        }
+
+        if (!is_null($this->tabAttachment)) {
+            return false;
+        }
+
+        return true;
+    }
 }
diff --git a/src/Model/Generated/Endpoint/TokenQrRequestIdeal.php b/src/Model/Generated/Endpoint/TokenQrRequestIdeal.php
index def7294e..a6d4b48e 100644
--- a/src/Model/Generated/Endpoint/TokenQrRequestIdeal.php
+++ b/src/Model/Generated/Endpoint/TokenQrRequestIdeal.php
@@ -576,4 +576,92 @@ public function setEligibleWhitelistId($eligibleWhitelistId)
     {
         $this->eligibleWhitelistId = $eligibleWhitelistId;
     }
+
+    /**
+     * @return bool
+     */
+    public function isAllFieldNull()
+    {
+        if (!is_null($this->timeResponded)) {
+            return false;
+        }
+
+        if (!is_null($this->timeExpiry)) {
+            return false;
+        }
+
+        if (!is_null($this->monetaryAccountId)) {
+            return false;
+        }
+
+        if (!is_null($this->amountInquired)) {
+            return false;
+        }
+
+        if (!is_null($this->amountResponded)) {
+            return false;
+        }
+
+        if (!is_null($this->alias)) {
+            return false;
+        }
+
+        if (!is_null($this->counterpartyAlias)) {
+            return false;
+        }
+
+        if (!is_null($this->description)) {
+            return false;
+        }
+
+        if (!is_null($this->attachment)) {
+            return false;
+        }
+
+        if (!is_null($this->status)) {
+            return false;
+        }
+
+        if (!is_null($this->minimumAge)) {
+            return false;
+        }
+
+        if (!is_null($this->requireAddress)) {
+            return false;
+        }
+
+        if (!is_null($this->addressShipping)) {
+            return false;
+        }
+
+        if (!is_null($this->addressBilling)) {
+            return false;
+        }
+
+        if (!is_null($this->geolocation)) {
+            return false;
+        }
+
+        if (!is_null($this->redirectUrl)) {
+            return false;
+        }
+
+        if (!is_null($this->type)) {
+            return false;
+        }
+
+        if (!is_null($this->subType)) {
+            return false;
+        }
+
+        if (!is_null($this->allowChat)) {
+            return false;
+        }
+
+        if (!is_null($this->eligibleWhitelistId)) {
+            return false;
+        }
+
+        return true;
+    }
 }
diff --git a/src/Model/Generated/Endpoint/User.php b/src/Model/Generated/Endpoint/User.php
index b2d5ac61..d2a56f90 100644
--- a/src/Model/Generated/Endpoint/User.php
+++ b/src/Model/Generated/Endpoint/User.php
@@ -5,6 +5,7 @@
 use bunq\exception\BunqException;
 use bunq\Http\ApiClient;
 use bunq\Http\BunqResponse;
+use bunq\Model\Core\AnchorObjectInterface;
 use bunq\Model\Core\BunqModel;
 
 /**
@@ -13,7 +14,7 @@
  *
  * @generated
  */
-class User extends BunqModel
+class User extends BunqModel implements AnchorObjectInterface
 {
     /**
      * Error constants.
@@ -169,4 +170,24 @@ public function getReferencedObject()
 
         throw new BunqException(self::ERROR_NULL_FIELDS);
     }
+
+    /**
+     * @return bool
+     */
+    public function isAllFieldNull()
+    {
+        if (!is_null($this->userLight)) {
+            return false;
+        }
+
+        if (!is_null($this->userPerson)) {
+            return false;
+        }
+
+        if (!is_null($this->userCompany)) {
+            return false;
+        }
+
+        return true;
+    }
 }
diff --git a/src/Model/Generated/Endpoint/UserCompany.php b/src/Model/Generated/Endpoint/UserCompany.php
index f6dda727..c7ed3d88 100644
--- a/src/Model/Generated/Endpoint/UserCompany.php
+++ b/src/Model/Generated/Endpoint/UserCompany.php
@@ -845,4 +845,128 @@ public function setBillingContract($billingContract)
     {
         $this->billingContract = $billingContract;
     }
+
+    /**
+     * @return bool
+     */
+    public function isAllFieldNull()
+    {
+        if (!is_null($this->id)) {
+            return false;
+        }
+
+        if (!is_null($this->created)) {
+            return false;
+        }
+
+        if (!is_null($this->updated)) {
+            return false;
+        }
+
+        if (!is_null($this->publicUuid)) {
+            return false;
+        }
+
+        if (!is_null($this->name)) {
+            return false;
+        }
+
+        if (!is_null($this->displayName)) {
+            return false;
+        }
+
+        if (!is_null($this->publicNickName)) {
+            return false;
+        }
+
+        if (!is_null($this->alias)) {
+            return false;
+        }
+
+        if (!is_null($this->chamberOfCommerceNumber)) {
+            return false;
+        }
+
+        if (!is_null($this->typeOfBusinessEntity)) {
+            return false;
+        }
+
+        if (!is_null($this->sectorOfIndustry)) {
+            return false;
+        }
+
+        if (!is_null($this->counterBankIban)) {
+            return false;
+        }
+
+        if (!is_null($this->avatar)) {
+            return false;
+        }
+
+        if (!is_null($this->addressMain)) {
+            return false;
+        }
+
+        if (!is_null($this->addressPostal)) {
+            return false;
+        }
+
+        if (!is_null($this->versionTermsOfService)) {
+            return false;
+        }
+
+        if (!is_null($this->directorAlias)) {
+            return false;
+        }
+
+        if (!is_null($this->language)) {
+            return false;
+        }
+
+        if (!is_null($this->country)) {
+            return false;
+        }
+
+        if (!is_null($this->region)) {
+            return false;
+        }
+
+        if (!is_null($this->ubo)) {
+            return false;
+        }
+
+        if (!is_null($this->status)) {
+            return false;
+        }
+
+        if (!is_null($this->subStatus)) {
+            return false;
+        }
+
+        if (!is_null($this->sessionTimeout)) {
+            return false;
+        }
+
+        if (!is_null($this->dailyLimitWithoutConfirmationLogin)) {
+            return false;
+        }
+
+        if (!is_null($this->notificationFilters)) {
+            return false;
+        }
+
+        if (!is_null($this->customer)) {
+            return false;
+        }
+
+        if (!is_null($this->customerLimit)) {
+            return false;
+        }
+
+        if (!is_null($this->billingContract)) {
+            return false;
+        }
+
+        return true;
+    }
 }
diff --git a/src/Model/Generated/Endpoint/UserCredentialPasswordIp.php b/src/Model/Generated/Endpoint/UserCredentialPasswordIp.php
index 3f002fc3..4260f7c7 100644
--- a/src/Model/Generated/Endpoint/UserCredentialPasswordIp.php
+++ b/src/Model/Generated/Endpoint/UserCredentialPasswordIp.php
@@ -255,4 +255,40 @@ public function setPermittedDevice($permittedDevice)
     {
         $this->permittedDevice = $permittedDevice;
     }
+
+    /**
+     * @return bool
+     */
+    public function isAllFieldNull()
+    {
+        if (!is_null($this->id)) {
+            return false;
+        }
+
+        if (!is_null($this->created)) {
+            return false;
+        }
+
+        if (!is_null($this->updated)) {
+            return false;
+        }
+
+        if (!is_null($this->status)) {
+            return false;
+        }
+
+        if (!is_null($this->expiryTime)) {
+            return false;
+        }
+
+        if (!is_null($this->tokenValue)) {
+            return false;
+        }
+
+        if (!is_null($this->permittedDevice)) {
+            return false;
+        }
+
+        return true;
+    }
 }
diff --git a/src/Model/Generated/Endpoint/UserLight.php b/src/Model/Generated/Endpoint/UserLight.php
index 6fad6844..dfb451ea 100644
--- a/src/Model/Generated/Endpoint/UserLight.php
+++ b/src/Model/Generated/Endpoint/UserLight.php
@@ -902,4 +902,140 @@ public function setNotificationFilters($notificationFilters)
     {
         $this->notificationFilters = $notificationFilters;
     }
+
+    /**
+     * @return bool
+     */
+    public function isAllFieldNull()
+    {
+        if (!is_null($this->id)) {
+            return false;
+        }
+
+        if (!is_null($this->created)) {
+            return false;
+        }
+
+        if (!is_null($this->updated)) {
+            return false;
+        }
+
+        if (!is_null($this->publicUuid)) {
+            return false;
+        }
+
+        if (!is_null($this->firstName)) {
+            return false;
+        }
+
+        if (!is_null($this->middleName)) {
+            return false;
+        }
+
+        if (!is_null($this->lastName)) {
+            return false;
+        }
+
+        if (!is_null($this->legalName)) {
+            return false;
+        }
+
+        if (!is_null($this->displayName)) {
+            return false;
+        }
+
+        if (!is_null($this->publicNickName)) {
+            return false;
+        }
+
+        if (!is_null($this->alias)) {
+            return false;
+        }
+
+        if (!is_null($this->socialSecurityNumber)) {
+            return false;
+        }
+
+        if (!is_null($this->taxResident)) {
+            return false;
+        }
+
+        if (!is_null($this->documentType)) {
+            return false;
+        }
+
+        if (!is_null($this->documentNumber)) {
+            return false;
+        }
+
+        if (!is_null($this->documentCountryOfIssuance)) {
+            return false;
+        }
+
+        if (!is_null($this->addressMain)) {
+            return false;
+        }
+
+        if (!is_null($this->addressPostal)) {
+            return false;
+        }
+
+        if (!is_null($this->dateOfBirth)) {
+            return false;
+        }
+
+        if (!is_null($this->placeOfBirth)) {
+            return false;
+        }
+
+        if (!is_null($this->countryOfBirth)) {
+            return false;
+        }
+
+        if (!is_null($this->nationality)) {
+            return false;
+        }
+
+        if (!is_null($this->language)) {
+            return false;
+        }
+
+        if (!is_null($this->region)) {
+            return false;
+        }
+
+        if (!is_null($this->gender)) {
+            return false;
+        }
+
+        if (!is_null($this->avatar)) {
+            return false;
+        }
+
+        if (!is_null($this->versionTermsOfService)) {
+            return false;
+        }
+
+        if (!is_null($this->status)) {
+            return false;
+        }
+
+        if (!is_null($this->subStatus)) {
+            return false;
+        }
+
+        if (!is_null($this->sessionTimeout)) {
+            return false;
+        }
+
+        if (!is_null($this->dailyLimitWithoutConfirmationLogin)) {
+            return false;
+        }
+
+        if (!is_null($this->notificationFilters)) {
+            return false;
+        }
+
+        return true;
+    }
 }
diff --git a/src/Model/Generated/Endpoint/UserPerson.php b/src/Model/Generated/Endpoint/UserPerson.php
index f3d7ef03..34a60a70 100644
--- a/src/Model/Generated/Endpoint/UserPerson.php
+++ b/src/Model/Generated/Endpoint/UserPerson.php
@@ -909,4 +909,136 @@ public function setNotificationFilters($notificationFilters)
     {
         $this->notificationFilters = $notificationFilters;
     }
+
+    /**
+     * @return bool
+     */
+    public function isAllFieldNull()
+    {
+        if (!is_null($this->id)) {
+            return false;
+        }
+
+        if (!is_null($this->created)) {
+            return false;
+        }
+
+        if (!is_null($this->updated)) {
+            return false;
+        }
+
+        if (!is_null($this->publicUuid)) {
+            return false;
+        }
+
+        if (!is_null($this->firstName)) {
+            return false;
+        }
+
+        if (!is_null($this->middleName)) {
+            return false;
+        }
+
+        if (!is_null($this->lastName)) {
+            return false;
+        }
+
+        if (!is_null($this->legalName)) {
+            return false;
+        }
+
+        if (!is_null($this->displayName)) {
+            return false;
+        }
+
+        if (!is_null($this->publicNickName)) {
+            return false;
+        }
+
+        if (!is_null($this->alias)) {
+            return false;
+        }
+
+        if (!is_null($this->taxResident)) {
+            return false;
+        }
+
+        if (!is_null($this->documentType)) {
+            return false;
+        }
+
+        if (!is_null($this->documentNumber)) {
+            return false;
+        }
+
+        if (!is_null($this->documentCountryOfIssuance)) {
+            return false;
+        }
+
+        if (!is_null($this->addressMain)) {
+            return false;
+        }
+
+        if (!is_null($this->addressPostal)) {
+            return false;
+        }
+
+        if (!is_null($this->dateOfBirth)) {
+            return false;
+        }
+
+        if (!is_null($this->placeOfBirth)) {
+            return false;
+        }
+
+        if (!is_null($this->countryOfBirth)) {
+            return false;
+        }
+
+        if (!is_null($this->nationality)) {
+            return false;
+        }
+
+        if (!is_null($this->language)) {
+            return false;
+        }
+
+        if (!is_null($this->region)) {
+            return false;
+        }
+
+        if (!is_null($this->gender)) {
+            return false;
+        }
+
+        if (!is_null($this->avatar)) {
+            return false;
+        }
+
+        if (!is_null($this->versionTermsOfService)) {
+            return false;
+        }
+
+        if (!is_null($this->status)) {
+            return false;
+        }
+
+        if (!is_null($this->subStatus)) {
+            return false;
+        }
+
+        if (!is_null($this->sessionTimeout)) {
+            return false;
+        }
+
+        if (!is_null($this->dailyLimitWithoutConfirmationLogin)) {
+            return false;
+        }
+
+        if (!is_null($this->notificationFilters)) {
+            return false;
+        }
+
+        return true;
+    }
 }
diff --git a/src/Model/Generated/Object/Address.php b/src/Model/Generated/Object/Address.php
index 7a6d6197..8cc7ae0c 100644
--- a/src/Model/Generated/Object/Address.php
+++ b/src/Model/Generated/Object/Address.php
@@ -198,4 +198,40 @@ public function setProvince($province)
     {
         $this->province = $province;
     }
+
+    /**
+     * @return bool
+     */
+    public function isAllFieldNull()
+    {
+        if (!is_null($this->street)) {
+            return false;
+        }
+
+        if (!is_null($this->houseNumber)) {
+            return false;
+        }
+
+        if (!is_null($this->poBox)) {
+            return false;
+        }
+
+        if (!is_null($this->postalCode)) {
+            return false;
+        }
+
+        if (!is_null($this->city)) {
+            return false;
+        }
+
+        if (!is_null($this->country)) {
+            return false;
+        }
+
+        if (!is_null($this->province)) {
+            return false;
+        }
+
+        return true;
+    }
 }
diff --git a/src/Model/Generated/Object/Amount.php b/src/Model/Generated/Object/Amount.php
index f698f5b2..b2cd8329 100644
--- a/src/Model/Generated/Object/Amount.php
+++ b/src/Model/Generated/Object/Amount.php
@@ -67,4 +67,20 @@ public function setCurrency($currency)
     {
         $this->currency = $currency;
     }
+
+    /**
+     * @return bool
+     */
+    public function isAllFieldNull()
+    {
+        if (!is_null($this->value)) {
+            return false;
+        }
+
+        if (!is_null($this->currency)) {
+            return false;
+        }
+
+        return true;
+    }
 }
diff --git a/src/Model/Generated/Object/AnchoredObject.php b/src/Model/Generated/Object/AnchoredObject.php
index 86cac134..2edbde97 100644
--- a/src/Model/Generated/Object/AnchoredObject.php
+++ b/src/Model/Generated/Object/AnchoredObject.php
@@ -2,6 +2,7 @@
 namespace bunq\Model\Generated\Object;
 
 use bunq\exception\BunqException;
+use bunq\Model\Core\AnchorObjectInterface;
 use bunq\Model\Core\BunqModel;
 use bunq\Model\Generated\Endpoint\CardDebit;
 use bunq\Model\Generated\Endpoint\CardPinChange;
@@ -25,7 +26,7 @@
 /**
  * @generated
  */
-class AnchoredObject extends BunqModel
+class AnchoredObject extends BunqModel implements AnchorObjectInterface
 {
     /**
      * Error constants.
@@ -490,4 +491,84 @@ public function getReferencedObject()
 
         throw new BunqException(self::ERROR_NULL_FIELDS);
     }
+
+    /**
+     * @return bool
+     */
+    public function isAllFieldNull()
+    {
+        if (!is_null($this->cardDebit)) {
+            return false;
+        }
+
+        if (!is_null($this->cardPinChange)) {
+            return false;
+        }
+
+        if (!is_null($this->cardResult)) {
+            return false;
+        }
+
+        if (!is_null($this->draftPayment)) {
+            return false;
+        }
+
+        if (!is_null($this->idealMerchantTransaction)) {
+            return false;
+        }
+
+        if (!is_null($this->invoice)) {
+            return false;
+        }
+
+        if (!is_null($this->payment)) {
+            return false;
+        }
+
+        if (!is_null($this->paymentBatch)) {
+            return false;
+        }
+
+        if (!is_null($this->promotionDisplay)) {
+            return false;
+        }
+
+        if (!is_null($this->requestInquiryBatch)) {
+            return false;
+        }
+
+        if (!is_null($this->requestInquiry)) {
+            return false;
+        }
+
+        if (!is_null($this->requestResponse)) {
+            return false;
+        }
+
+        if (!is_null($this->scheduledPaymentBatch)) {
+            return false;
+        }
+
+        if (!is_null($this->scheduledPayment)) {
+            return false;
+        }
+
+        if (!is_null($this->scheduledInstance)) {
+            return false;
+        }
+
+        if (!is_null($this->shareInviteBankInquiry)) {
+            return false;
+        }
+
+        if (!is_null($this->shareInviteBankResponse)) {
+            return false;
+        }
+
+        if (!is_null($this->userCredentialPasswordIp)) {
+            return false;
+        }
+
+        return true;
+    }
 }
diff --git a/src/Model/Generated/Object/Attachment.php b/src/Model/Generated/Object/Attachment.php
index 35be5570..85ba6dbe 100644
--- a/src/Model/Generated/Object/Attachment.php
+++ b/src/Model/Generated/Object/Attachment.php
@@ -57,4 +57,20 @@ public function setContentType($contentType)
     {
         $this->contentType = $contentType;
     }
+
+    /**
+     * @return bool
+     */
+    public function isAllFieldNull()
+    {
+        if (!is_null($this->description)) {
+            return false;
+        }
+
+        if (!is_null($this->contentType)) {
+            return false;
+        }
+
+        return true;
+    }
 }
diff --git a/src/Model/Generated/Object/AttachmentMonetaryAccountPayment.php b/src/Model/Generated/Object/AttachmentMonetaryAccountPayment.php
index 691fe3da..62e69ace 100644
--- a/src/Model/Generated/Object/AttachmentMonetaryAccountPayment.php
+++ b/src/Model/Generated/Object/AttachmentMonetaryAccountPayment.php
@@ -65,4 +65,20 @@ public function setMonetaryAccountId($monetaryAccountId)
     {
         $this->monetaryAccountId = $monetaryAccountId;
     }
+
+    /**
+     * @return bool
+     */
+    public function isAllFieldNull()
+    {
+        if (!is_null($this->id)) {
+            return false;
+        }
+
+        if (!is_null($this->monetaryAccountId)) {
+            return false;
+        }
+
+        return true;
+    }
 }
diff --git a/src/Model/Generated/Object/AttachmentPublic.php b/src/Model/Generated/Object/AttachmentPublic.php
index c037d283..ac292eb0 100644
--- a/src/Model/Generated/Object/AttachmentPublic.php
+++ b/src/Model/Generated/Object/AttachmentPublic.php
@@ -82,4 +82,24 @@ public function setContentType($contentType)
     {
         $this->contentType = $contentType;
     }
+
+    /**
+     * @return bool
+     */
+    public function isAllFieldNull()
+    {
+        if (!is_null($this->uuid)) {
+            return false;
+        }
+
+        if (!is_null($this->description)) {
+            return false;
+        }
+
+        if (!is_null($this->contentType)) {
+            return false;
+        }
+
+        return true;
+    }
 }
diff --git a/src/Model/Generated/Object/AttachmentTab.php b/src/Model/Generated/Object/AttachmentTab.php
index cd685600..c6981bb7 100644
--- a/src/Model/Generated/Object/AttachmentTab.php
+++ b/src/Model/Generated/Object/AttachmentTab.php
@@ -82,4 +82,24 @@ public function setContentType($contentType)
     {
         $this->contentType = $contentType;
     }
+
+    /**
+     * @return bool
+     */
+    public function isAllFieldNull()
+    {
+        if (!is_null($this->id)) {
+            return false;
+        }
+
+        if (!is_null($this->description)) {
+            return false;
+        }
+
+        if (!is_null($this->contentType)) {
+            return false;
+        }
+
+        return true;
+    }
 }
diff --git a/src/Model/Generated/Object/Avatar.php b/src/Model/Generated/Object/Avatar.php
index 6f5c9bc5..e63a1c87 100644
--- a/src/Model/Generated/Object/Avatar.php
+++ b/src/Model/Generated/Object/Avatar.php
@@ -90,4 +90,24 @@ public function setImage($image)
     {
         $this->image = $image;
     }
+
+    /**
+     * @return bool
+     */
+    public function isAllFieldNull()
+    {
+        if (!is_null($this->uuid)) {
+            return false;
+        }
+
+        if (!is_null($this->anchorUuid)) {
+            return false;
+        }
+
+        if (!is_null($this->image)) {
+            return false;
+        }
+
+        return true;
+    }
 }
diff --git a/src/Model/Generated/Object/BudgetRestriction.php b/src/Model/Generated/Object/BudgetRestriction.php
index f2475813..3b3ee1cd 100644
--- a/src/Model/Generated/Object/BudgetRestriction.php
+++ b/src/Model/Generated/Object/BudgetRestriction.php
@@ -59,4 +59,20 @@ public function setFrequency($frequency)
     {
         $this->frequency = $frequency;
     }
+
+    /**
+     * @return bool
+     */
+    public function isAllFieldNull()
+    {
+        if (!is_null($this->amount)) {
+            return false;
+        }
+
+        if (!is_null($this->frequency)) {
+            return false;
+        }
+
+        return true;
+    }
 }
diff --git a/src/Model/Generated/Object/BunqId.php b/src/Model/Generated/Object/BunqId.php
index f3051b51..18e20112 100644
--- a/src/Model/Generated/Object/BunqId.php
+++ b/src/Model/Generated/Object/BunqId.php
@@ -40,4 +40,16 @@ public function setId($id)
     {
         $this->id = $id;
     }
+
+    /**
+     * @return bool
+     */
+    public function isAllFieldNull()
+    {
+        if (!is_null($this->id)) {
+            return false;
+        }
+
+        return true;
+    }
 }
diff --git a/src/Model/Generated/Object/BunqMeMerchantAvailable.php b/src/Model/Generated/Object/BunqMeMerchantAvailable.php
index e02da794..56b874b3 100644
--- a/src/Model/Generated/Object/BunqMeMerchantAvailable.php
+++ b/src/Model/Generated/Object/BunqMeMerchantAvailable.php
@@ -57,4 +57,20 @@ public function setAvailable($available)
     {
         $this->available = $available;
     }
+
+    /**
+     * @return bool
+     */
+    public function isAllFieldNull()
+    {
+        if (!is_null($this->merchantType)) {
+            return false;
+        }
+
+        if (!is_null($this->available)) {
+            return false;
+        }
+
+        return true;
+    }
 }
diff --git a/src/Model/Generated/Object/CardCountryPermission.php b/src/Model/Generated/Object/CardCountryPermission.php
index de24dc85..5af4e47e 100644
--- a/src/Model/Generated/Object/CardCountryPermission.php
+++ b/src/Model/Generated/Object/CardCountryPermission.php
@@ -90,4 +90,24 @@ public function setExpiryTime($expiryTime)
     {
         $this->expiryTime = $expiryTime;
     }
+
+    /**
+     * @return bool
+     */
+    public function isAllFieldNull()
+    {
+        if (!is_null($this->id)) {
+            return false;
+        }
+
+        if (!is_null($this->country)) {
+            return false;
+        }
+
+        if (!is_null($this->expiryTime)) {
+            return false;
+        }
+
+        return true;
+    }
 }
diff --git a/src/Model/Generated/Object/CardLimit.php b/src/Model/Generated/Object/CardLimit.php
index e513468e..5a96284e 100644
--- a/src/Model/Generated/Object/CardLimit.php
+++ b/src/Model/Generated/Object/CardLimit.php
@@ -121,4 +121,28 @@ public function setType($type)
     {
         $this->type = $type;
     }
+
+    /**
+     * @return bool
+     */
+    public function isAllFieldNull()
+    {
+        if (!is_null($this->id)) {
+            return false;
+        }
+
+        if (!is_null($this->dailyLimit)) {
+            return false;
+        }
+
+        if (!is_null($this->currency)) {
+            return false;
+        }
+
+        if (!is_null($this->type)) {
+            return false;
+        }
+
+        return true;
+    }
 }
diff --git a/src/Model/Generated/Object/CardMagStripePermission.php b/src/Model/Generated/Object/CardMagStripePermission.php
index 71230a01..518383a1 100644
--- a/src/Model/Generated/Object/CardMagStripePermission.php
+++ b/src/Model/Generated/Object/CardMagStripePermission.php
@@ -32,4 +32,16 @@ public function setExpiryTime($expiryTime)
     {
         $this->expiryTime = $expiryTime;
     }
+
+    /**
+     * @return bool
+     */
+    public function isAllFieldNull()
+    {
+        if (!is_null($this->expiryTime)) {
+            return false;
+        }
+
+        return true;
+    }
 }
diff --git a/src/Model/Generated/Object/CardPinAssignment.php b/src/Model/Generated/Object/CardPinAssignment.php
index f0010a10..2cc67db8 100644
--- a/src/Model/Generated/Object/CardPinAssignment.php
+++ b/src/Model/Generated/Object/CardPinAssignment.php
@@ -72,4 +72,20 @@ public function setMonetaryAccountId($monetaryAccountId)
     {
         $this->monetaryAccountId = $monetaryAccountId;
     }
+
+    /**
+     * @return bool
+     */
+    public function isAllFieldNull()
+    {
+        if (!is_null($this->type)) {
+            return false;
+        }
+
+        if (!is_null($this->monetaryAccountId)) {
+            return false;
+        }
+
+        return true;
+    }
 }
diff --git a/src/Model/Generated/Object/Certificate.php b/src/Model/Generated/Object/Certificate.php
index 190bca18..659d2121 100644
--- a/src/Model/Generated/Object/Certificate.php
+++ b/src/Model/Generated/Object/Certificate.php
@@ -40,4 +40,16 @@ public function setCertificate($certificate)
     {
         $this->certificate = $certificate;
     }
+
+    /**
+     * @return bool
+     */
+    public function isAllFieldNull()
+    {
+        if (!is_null($this->certificate)) {
+            return false;
+        }
+
+        return true;
+    }
 }
diff --git a/src/Model/Generated/Object/ChatMessageContent.php b/src/Model/Generated/Object/ChatMessageContent.php
index 7108b651..6ae43e2e 100644
--- a/src/Model/Generated/Object/ChatMessageContent.php
+++ b/src/Model/Generated/Object/ChatMessageContent.php
@@ -2,12 +2,13 @@
 namespace bunq\Model\Generated\Object;
 
 use bunq\exception\BunqException;
+use bunq\Model\Core\AnchorObjectInterface;
 use bunq\Model\Core\BunqModel;
 
 /**
  * @generated
  */
-class ChatMessageContent extends BunqModel
+class ChatMessageContent extends BunqModel implements AnchorObjectInterface
 {
     /**
      * Error constants.
@@ -200,4 +201,40 @@ public function getReferencedObject()
 
         throw new BunqException(self::ERROR_NULL_FIELDS);
     }
+
+    /**
+     * @return bool
+     */
+    public function isAllFieldNull()
+    {
+        if (!is_null($this->chatMessageContentAnchorEvent)) {
+            return false;
+        }
+
+        if (!is_null($this->chatMessageContentAttachment)) {
+            return false;
+        }
+
+        if (!is_null($this->chatMessageContentGeolocation)) {
+            return false;
+        }
+
+        if (!is_null($this->chatMessageContentStatusConversationTitle)) {
+            return false;
+        }
+
+        if (!is_null($this->chatMessageContentStatusConversation)) {
+            return false;
+        }
+
+        if (!is_null($this->chatMessageContentStatusMembership)) {
+            return false;
+        }
+
+        if (!is_null($this->chatMessageContentText)) {
+            return false;
+        }
+
+        return true;
+    }
 }
diff --git a/src/Model/Generated/Object/ChatMessageContentAnchorEvent.php b/src/Model/Generated/Object/ChatMessageContentAnchorEvent.php
index 824d660b..118621fc 100644
--- a/src/Model/Generated/Object/ChatMessageContentAnchorEvent.php
+++ b/src/Model/Generated/Object/ChatMessageContentAnchorEvent.php
@@ -42,4 +42,16 @@ public function setAnchoredObject($anchoredObject)
     {
         $this->anchoredObject = $anchoredObject;
     }
+
+    /**
+     * @return bool
+     */
+    public function isAllFieldNull()
+    {
+        if (!is_null($this->anchoredObject)) {
+            return false;
+        }
+
+        return true;
+    }
 }
diff --git a/src/Model/Generated/Object/ChatMessageContentAttachment.php b/src/Model/Generated/Object/ChatMessageContentAttachment.php
index 86884bbd..81b0d0a0 100644
--- a/src/Model/Generated/Object/ChatMessageContentAttachment.php
+++ b/src/Model/Generated/Object/ChatMessageContentAttachment.php
@@ -32,4 +32,16 @@ public function setAttachment($attachment)
     {
         $this->attachment = $attachment;
     }
+
+    /**
+     * @return bool
+     */
+    public function isAllFieldNull()
+    {
+        if (!is_null($this->attachment)) {
+            return false;
+        }
+
+        return true;
+    }
 }
diff --git a/src/Model/Generated/Object/ChatMessageContentGeolocation.php b/src/Model/Generated/Object/ChatMessageContentGeolocation.php
index 43ae6088..c3d99029 100644
--- a/src/Model/Generated/Object/ChatMessageContentGeolocation.php
+++ b/src/Model/Generated/Object/ChatMessageContentGeolocation.php
@@ -32,4 +32,16 @@ public function setGeolocation($geolocation)
     {
         $this->geolocation = $geolocation;
     }
+
+    /**
+     * @return bool
+     */
+    public function isAllFieldNull()
+    {
+        if (!is_null($this->geolocation)) {
+            return false;
+        }
+
+        return true;
+    }
 }
diff --git a/src/Model/Generated/Object/ChatMessageContentStatusConversation.php b/src/Model/Generated/Object/ChatMessageContentStatusConversation.php
index 3ba3e96e..165ee3fc 100644
--- a/src/Model/Generated/Object/ChatMessageContentStatusConversation.php
+++ b/src/Model/Generated/Object/ChatMessageContentStatusConversation.php
@@ -32,4 +32,16 @@ public function setAction($action)
     {
         $this->action = $action;
     }
+
+    /**
+     * @return bool
+     */
+    public function isAllFieldNull()
+    {
+        if (!is_null($this->action)) {
+            return false;
+        }
+
+        return true;
+    }
 }
diff --git a/src/Model/Generated/Object/ChatMessageContentStatusConversationTitle.php b/src/Model/Generated/Object/ChatMessageContentStatusConversationTitle.php
index a124407f..1fae3877 100644
--- a/src/Model/Generated/Object/ChatMessageContentStatusConversationTitle.php
+++ b/src/Model/Generated/Object/ChatMessageContentStatusConversationTitle.php
@@ -32,4 +32,16 @@ public function setTitle($title)
     {
         $this->title = $title;
     }
+
+    /**
+     * @return bool
+     */
+    public function isAllFieldNull()
+    {
+        if (!is_null($this->title)) {
+            return false;
+        }
+
+        return true;
+    }
 }
diff --git a/src/Model/Generated/Object/ChatMessageContentStatusMembership.php b/src/Model/Generated/Object/ChatMessageContentStatusMembership.php
index d4519c74..a264ddfe 100644
--- a/src/Model/Generated/Object/ChatMessageContentStatusMembership.php
+++ b/src/Model/Generated/Object/ChatMessageContentStatusMembership.php
@@ -59,4 +59,20 @@ public function setMember($member)
     {
         $this->member = $member;
     }
+
+    /**
+     * @return bool
+     */
+    public function isAllFieldNull()
+    {
+        if (!is_null($this->action)) {
+            return false;
+        }
+
+        if (!is_null($this->member)) {
+            return false;
+        }
+
+        return true;
+    }
 }
diff --git a/src/Model/Generated/Object/ChatMessageContentText.php b/src/Model/Generated/Object/ChatMessageContentText.php
index 4128ee4c..fa71b002 100644
--- a/src/Model/Generated/Object/ChatMessageContentText.php
+++ b/src/Model/Generated/Object/ChatMessageContentText.php
@@ -32,4 +32,16 @@ public function setText($text)
     {
         $this->text = $text;
     }
+
+    /**
+     * @return bool
+     */
+    public function isAllFieldNull()
+    {
+        if (!is_null($this->text)) {
+            return false;
+        }
+
+        return true;
+    }
 }
diff --git a/src/Model/Generated/Object/DraftPaymentAnchorObject.php b/src/Model/Generated/Object/DraftPaymentAnchorObject.php
index 8a7b3bbd..5b06ddf2 100644
--- a/src/Model/Generated/Object/DraftPaymentAnchorObject.php
+++ b/src/Model/Generated/Object/DraftPaymentAnchorObject.php
@@ -2,6 +2,7 @@
 namespace bunq\Model\Generated\Object;
 
 use bunq\exception\BunqException;
+use bunq\Model\Core\AnchorObjectInterface;
 use bunq\Model\Core\BunqModel;
 use bunq\Model\Generated\Endpoint\Payment;
 use bunq\Model\Generated\Endpoint\PaymentBatch;
@@ -9,7 +10,7 @@
 /**
  * @generated
  */
-class DraftPaymentAnchorObject extends BunqModel
+class DraftPaymentAnchorObject extends BunqModel implements AnchorObjectInterface
 {
     /**
      * Error constants.
@@ -74,4 +75,20 @@ public function getReferencedObject()
 
         throw new BunqException(self::ERROR_NULL_FIELDS);
     }
+
+    /**
+     * @return bool
+     */
+    public function isAllFieldNull()
+    {
+        if (!is_null($this->payment)) {
+            return false;
+        }
+
+        if (!is_null($this->paymentBatch)) {
+            return false;
+        }
+
+        return true;
+    }
 }
diff --git a/src/Model/Generated/Object/DraftPaymentEntry.php b/src/Model/Generated/Object/DraftPaymentEntry.php
index 97b1c812..532caf24 100644
--- a/src/Model/Generated/Object/DraftPaymentEntry.php
+++ b/src/Model/Generated/Object/DraftPaymentEntry.php
@@ -234,4 +234,44 @@ public function setAttachment($attachment)
     {
         $this->attachment = $attachment;
     }
+
+    /**
+     * @return bool
+     */
+    public function isAllFieldNull()
+    {
+        if (!is_null($this->id)) {
+            return false;
+        }
+
+        if (!is_null($this->amount)) {
+            return false;
+        }
+
+        if (!is_null($this->alias)) {
+            return false;
+        }
+
+        if (!is_null($this->counterpartyAlias)) {
+            return false;
+        }
+
+        if (!is_null($this->description)) {
+            return false;
+        }
+
+        if (!is_null($this->merchantReference)) {
+            return false;
+        }
+
+        if (!is_null($this->type)) {
+            return false;
+        }
+
+        if (!is_null($this->attachment)) {
+            return false;
+        }
+
+        return true;
+    }
 }
diff --git a/src/Model/Generated/Object/DraftPaymentResponse.php b/src/Model/Generated/Object/DraftPaymentResponse.php
index a648d0f3..b178f8fd 100644
--- a/src/Model/Generated/Object/DraftPaymentResponse.php
+++ b/src/Model/Generated/Object/DraftPaymentResponse.php
@@ -57,4 +57,20 @@ public function setUserAliasCreated($userAliasCreated)
     {
         $this->userAliasCreated = $userAliasCreated;
     }
+
+    /**
+     * @return bool
+     */
+    public function isAllFieldNull()
+    {
+        if (!is_null($this->status)) {
+            return false;
+        }
+
+        if (!is_null($this->userAliasCreated)) {
+            return false;
+        }
+
+        return true;
+    }
 }
diff --git a/src/Model/Generated/Object/DraftShareInviteBankEntry.php b/src/Model/Generated/Object/DraftShareInviteBankEntry.php
index 80d0bc66..c9f5ac16 100644
--- a/src/Model/Generated/Object/DraftShareInviteBankEntry.php
+++ b/src/Model/Generated/Object/DraftShareInviteBankEntry.php
@@ -90,4 +90,24 @@ public function setEndDate($endDate)
     {
         $this->endDate = $endDate;
     }
+
+    /**
+     * @return bool
+     */
+    public function isAllFieldNull()
+    {
+        if (!is_null($this->shareDetail)) {
+            return false;
+        }
+
+        if (!is_null($this->startDate)) {
+            return false;
+        }
+
+        if (!is_null($this->endDate)) {
+            return false;
+        }
+
+        return true;
+    }
 }
diff --git a/src/Model/Generated/Object/Error.php b/src/Model/Generated/Object/Error.php
index d494edff..2f73bbdd 100644
--- a/src/Model/Generated/Object/Error.php
+++ b/src/Model/Generated/Object/Error.php
@@ -57,4 +57,20 @@ public function setErrorDescriptionTranslated($errorDescriptionTranslated)
     {
         $this->errorDescriptionTranslated = $errorDescriptionTranslated;
     }
+
+    /**
+     * @return bool
+     */
+    public function isAllFieldNull()
+    {
+        if (!is_null($this->errorDescription)) {
+            return false;
+        }
+
+        if (!is_null($this->errorDescriptionTranslated)) {
+            return false;
+        }
+
+        return true;
+    }
 }
diff --git a/src/Model/Generated/Object/Geolocation.php b/src/Model/Generated/Object/Geolocation.php
index 571c9b24..6a3e85e9 100644
--- a/src/Model/Generated/Object/Geolocation.php
+++ b/src/Model/Generated/Object/Geolocation.php
@@ -107,4 +107,28 @@ public function setRadius($radius)
     {
         $this->radius = $radius;
     }
+
+    /**
+     * @return bool
+     */
+    public function isAllFieldNull()
+    {
+        if (!is_null($this->latitude)) {
+            return false;
+        }
+
+        if (!is_null($this->longitude)) {
+            return false;
+        }
+
+        if (!is_null($this->altitude)) {
+            return false;
+        }
+
+        if (!is_null($this->radius)) {
+            return false;
+        }
+
+        return true;
+    }
 }
diff --git a/src/Model/Generated/Object/Image.php b/src/Model/Generated/Object/Image.php
index 65eb0c87..ea5993cd 100644
--- a/src/Model/Generated/Object/Image.php
+++ b/src/Model/Generated/Object/Image.php
@@ -107,4 +107,28 @@ public function setWidth($width)
     {
         $this->width = $width;
     }
+
+    /**
+     * @return bool
+     */
+    public function isAllFieldNull()
+    {
+        if (!is_null($this->attachmentPublicUuid)) {
+            return false;
+        }
+
+        if (!is_null($this->contentType)) {
+            return false;
+        }
+
+        if (!is_null($this->height)) {
+            return false;
+        }
+
+        if (!is_null($this->width)) {
+            return false;
+        }
+
+        return true;
+    }
 }
diff --git a/src/Model/Generated/Object/InvoiceItem.php b/src/Model/Generated/Object/InvoiceItem.php
index 75d23ae4..4ff32ca9 100644
--- a/src/Model/Generated/Object/InvoiceItem.php
+++ b/src/Model/Generated/Object/InvoiceItem.php
@@ -232,4 +232,48 @@ public function setTotalVatInclusive($totalVatInclusive)
     {
         $this->totalVatInclusive = $totalVatInclusive;
     }
+
+    /**
+     * @return bool
+     */
+    public function isAllFieldNull()
+    {
+        if (!is_null($this->billingDate)) {
+            return false;
+        }
+
+        if (!is_null($this->typeDescription)) {
+            return false;
+        }
+
+        if (!is_null($this->typeDescriptionTranslated)) {
+            return false;
+        }
+
+        if (!is_null($this->unitVatExclusive)) {
+            return false;
+        }
+
+        if (!is_null($this->unitVatInclusive)) {
+            return false;
+        }
+
+        if (!is_null($this->vat)) {
+            return false;
+        }
+
+        if (!is_null($this->quantity)) {
+            return false;
+        }
+
+        if (!is_null($this->totalVatExclusive)) {
+            return false;
+        }
+
+        if (!is_null($this->totalVatInclusive)) {
+            return false;
+        }
+
+        return true;
+    }
 }
diff --git a/src/Model/Generated/Object/InvoiceItemGroup.php b/src/Model/Generated/Object/InvoiceItemGroup.php
index 68a0cd71..2403f379 100644
--- a/src/Model/Generated/Object/InvoiceItemGroup.php
+++ b/src/Model/Generated/Object/InvoiceItemGroup.php
@@ -182,4 +182,40 @@ public function setItem($item)
     {
         $this->item = $item;
     }
+
+    /**
+     * @return bool
+     */
+    public function isAllFieldNull()
+    {
+        if (!is_null($this->type)) {
+            return false;
+        }
+
+        if (!is_null($this->typeDescription)) {
+            return false;
+        }
+
+        if (!is_null($this->typeDescriptionTranslated)) {
+            return false;
+        }
+
+        if (!is_null($this->instanceDescription)) {
+            return false;
+        }
+
+        if (!is_null($this->productVatExclusive)) {
+            return false;
+        }
+
+        if (!is_null($this->productVatInclusive)) {
+            return false;
+        }
+
+        if (!is_null($this->item)) {
+            return false;
+        }
+
+        return true;
+    }
 }
diff --git a/src/Model/Generated/Object/Issuer.php b/src/Model/Generated/Object/Issuer.php
index 178ebc51..739b84ce 100644
--- a/src/Model/Generated/Object/Issuer.php
+++ b/src/Model/Generated/Object/Issuer.php
@@ -65,4 +65,20 @@ public function setName($name)
     {
         $this->name = $name;
     }
+
+    /**
+     * @return bool
+     */
+    public function isAllFieldNull()
+    {
+        if (!is_null($this->bic)) {
+            return false;
+        }
+
+        if (!is_null($this->name)) {
+            return false;
+        }
+
+        return true;
+    }
 }
diff --git a/src/Model/Generated/Object/LabelCard.php b/src/Model/Generated/Object/LabelCard.php
index e075d0f5..824aa79b 100644
--- a/src/Model/Generated/Object/LabelCard.php
+++ b/src/Model/Generated/Object/LabelCard.php
@@ -157,4 +157,36 @@ public function setLabelUser($labelUser)
     {
         $this->labelUser = $labelUser;
     }
+
+    /**
+     * @return bool
+     */
+    public function isAllFieldNull()
+    {
+        if (!is_null($this->uuid)) {
+            return false;
+        }
+
+        if (!is_null($this->type)) {
+            return false;
+        }
+
+        if (!is_null($this->secondLine)) {
+            return false;
+        }
+
+        if (!is_null($this->expiryDate)) {
+            return false;
+        }
+
+        if (!is_null($this->status)) {
+            return false;
+        }
+
+        if (!is_null($this->labelUser)) {
+            return false;
+        }
+
+        return true;
+    }
 }
diff --git a/src/Model/Generated/Object/LabelMonetaryAccount.php b/src/Model/Generated/Object/LabelMonetaryAccount.php
index dc3b7151..9f5f9052 100644
--- a/src/Model/Generated/Object/LabelMonetaryAccount.php
+++ b/src/Model/Generated/Object/LabelMonetaryAccount.php
@@ -232,4 +232,48 @@ public function setSwiftAccountNumber($swiftAccountNumber)
     {
         $this->swiftAccountNumber = $swiftAccountNumber;
     }
+
+    /**
+     * @return bool
+     */
+    public function isAllFieldNull()
+    {
+        if (!is_null($this->iban)) {
+            return false;
+        }
+
+        if (!is_null($this->displayName)) {
+            return false;
+        }
+
+        if (!is_null($this->avatar)) {
+            return false;
+        }
+
+        if (!is_null($this->labelUser)) {
+            return false;
+        }
+
+        if (!is_null($this->country)) {
+            return false;
+        }
+
+        if (!is_null($this->bunqMe)) {
+            return false;
+        }
+
+        if (!is_null($this->isLight)) {
+            return false;
+        }
+
+        if (!is_null($this->swiftBic)) {
+            return false;
+        }
+
+        if (!is_null($this->swiftAccountNumber)) {
+            return false;
+        }
+
+        return true;
+    }
 }
diff --git a/src/Model/Generated/Object/LabelUser.php b/src/Model/Generated/Object/LabelUser.php
index 3815d634..a0187428 100644
--- a/src/Model/Generated/Object/LabelUser.php
+++ b/src/Model/Generated/Object/LabelUser.php
@@ -144,4 +144,32 @@ public function setCountry($country)
     {
         $this->country = $country;
     }
+
+    /**
+     * @return bool
+     */
+    public function isAllFieldNull()
+    {
+        if (!is_null($this->uuid)) {
+            return false;
+        }
+
+        if (!is_null($this->avatar)) {
+            return false;
+        }
+
+        if (!is_null($this->publicNickName)) {
+            return false;
+        }
+
+        if (!is_null($this->displayName)) {
+            return false;
+        }
+
+        if (!is_null($this->country)) {
+            return false;
+        }
+
+        return true;
+    }
 }
diff --git a/src/Model/Generated/Object/MonetaryAccountProfileDrain.php b/src/Model/Generated/Object/MonetaryAccountProfileDrain.php
index f8c5b9e9..a471ab2a 100644
--- a/src/Model/Generated/Object/MonetaryAccountProfileDrain.php
+++ b/src/Model/Generated/Object/MonetaryAccountProfileDrain.php
@@ -121,4 +121,28 @@ public function setSavingsAccountAlias($savingsAccountAlias)
     {
         $this->savingsAccountAlias = $savingsAccountAlias;
     }
+
+    /**
+     * @return bool
+     */
+    public function isAllFieldNull()
+    {
+        if (!is_null($this->status)) {
+            return false;
+        }
+
+        if (!is_null($this->balancePreferred)) {
+            return false;
+        }
+
+        if (!is_null($this->balanceThresholdHigh)) {
+            return false;
+        }
+
+        if (!is_null($this->savingsAccountAlias)) {
+            return false;
+        }
+
+        return true;
+    }
 }
diff --git a/src/Model/Generated/Object/MonetaryAccountProfileFill.php b/src/Model/Generated/Object/MonetaryAccountProfileFill.php
index 24639659..26861b03 100644
--- a/src/Model/Generated/Object/MonetaryAccountProfileFill.php
+++ b/src/Model/Generated/Object/MonetaryAccountProfileFill.php
@@ -148,4 +148,32 @@ public function setIssuer($issuer)
     {
         $this->issuer = $issuer;
     }
+
+    /**
+     * @return bool
+     */
+    public function isAllFieldNull()
+    {
+        if (!is_null($this->status)) {
+            return false;
+        }
+
+        if (!is_null($this->balancePreferred)) {
+            return false;
+        }
+
+        if (!is_null($this->balanceThresholdLow)) {
+            return false;
+        }
+
+        if (!is_null($this->methodFill)) {
+            return false;
+        }
+
+        if (!is_null($this->issuer)) {
+            return false;
+        }
+
+        return true;
+    }
 }
diff --git a/src/Model/Generated/Object/MonetaryAccountSetting.php b/src/Model/Generated/Object/MonetaryAccountSetting.php
index a04d4229..fdf21441 100644
--- a/src/Model/Generated/Object/MonetaryAccountSetting.php
+++ b/src/Model/Generated/Object/MonetaryAccountSetting.php
@@ -86,4 +86,24 @@ public function setRestrictionChat($restrictionChat)
     {
         $this->restrictionChat = $restrictionChat;
     }
+
+    /**
+     * @return bool
+     */
+    public function isAllFieldNull()
+    {
+        if (!is_null($this->color)) {
+            return false;
+        }
+
+        if (!is_null($this->defaultAvatarStatus)) {
+            return false;
+        }
+
+        if (!is_null($this->restrictionChat)) {
+            return false;
+        }
+
+        return true;
+    }
 }
diff --git a/src/Model/Generated/Object/NotificationAnchorObject.php b/src/Model/Generated/Object/NotificationAnchorObject.php
index 2ba5d2b2..fc283423 100644
--- a/src/Model/Generated/Object/NotificationAnchorObject.php
+++ b/src/Model/Generated/Object/NotificationAnchorObject.php
@@ -2,18 +2,18 @@
 namespace bunq\Model\Generated\Object;
 
 use bunq\exception\BunqException;
+use bunq\Model\Core\AnchorObjectInterface;
 use bunq\Model\Core\BunqModel;
+use bunq\Model\Generated\Endpoint\BunqMeFundraiserResult;
 use bunq\Model\Generated\Endpoint\BunqMeTab;
 use bunq\Model\Generated\Endpoint\BunqMeTabResultInquiry;
 use bunq\Model\Generated\Endpoint\BunqMeTabResultResponse;
-use bunq\Model\Generated\Endpoint\ChatMessageAnnouncement;
-use bunq\Model\Generated\Endpoint\ChatMessageStatus;
-use bunq\Model\Generated\Endpoint\ChatMessageUser;
+use bunq\Model\Generated\Endpoint\ChatMessage;
 use bunq\Model\Generated\Endpoint\DraftPayment;
 use bunq\Model\Generated\Endpoint\IdealMerchantTransaction;
 use bunq\Model\Generated\Endpoint\Invoice;
 use bunq\Model\Generated\Endpoint\MasterCardAction;
-use bunq\Model\Generated\Endpoint\MonetaryAccountBank;
+use bunq\Model\Generated\Endpoint\MonetaryAccount;
 use bunq\Model\Generated\Endpoint\Payment;
 use bunq\Model\Generated\Endpoint\PaymentBatch;
 use bunq\Model\Generated\Endpoint\RequestInquiry;
@@ -25,19 +25,23 @@
 use bunq\Model\Generated\Endpoint\ShareInviteBankResponse;
 use bunq\Model\Generated\Endpoint\TabResultInquiry;
 use bunq\Model\Generated\Endpoint\TabResultResponse;
-use bunq\Model\Generated\Endpoint\UserCompany;
-use bunq\Model\Generated\Endpoint\UserPerson;
+use bunq\Model\Generated\Endpoint\User;
 
 /**
  * @generated
  */
-class NotificationAnchorObject extends BunqModel
+class NotificationAnchorObject extends BunqModel implements AnchorObjectInterface
 {
     /**
      * Error constants.
      */
     const ERROR_NULL_FIELDS = 'All fields of an extended model or object are null.';
 
+    /**
+     * @var BunqMeFundraiserResult
+     */
+    protected $bunqMeFundraiserResult;
+
     /**
      * @var BunqMeTab
      */
@@ -54,19 +58,9 @@ class NotificationAnchorObject extends BunqModel
     protected $bunqMeTabResultResponse;
 
     /**
-     * @var ChatMessageStatus
-     */
-    protected $chatMessageStatus;
-
-    /**
-     * @var ChatMessageUser
+     * @var ChatMessage
      */
-    protected $chatMessageUser;
-
-    /**
-     * @var ChatMessageAnnouncement
-     */
-    protected $chatMessageAnnouncement;
+    protected $chatMessage;
 
     /**
      * @var DraftPayment
@@ -89,9 +83,9 @@ class NotificationAnchorObject extends BunqModel
     protected $masterCardAction;
 
     /**
-     * @var MonetaryAccountBank
+     * @var MonetaryAccount
      */
-    protected $monetaryAccountBank;
+    protected $monetaryAccount;
 
     /**
      * @var Payment
@@ -149,14 +143,25 @@ class NotificationAnchorObject extends BunqModel
     protected $tabResultResponse;
 
     /**
-     * @var UserPerson
+     * @var User
      */
-    protected $userPerson;
+    protected $user;
 
     /**
-     * @var UserCompany
+     * @return BunqMeFundraiserResult
      */
-    protected $userCompany;
+    public function getBunqMeFundraiserResult()
+    {
+        return $this->bunqMeFundraiserResult;
+    }
+
+    /**
+     * @param BunqMeFundraiserResult $bunqMeFundraiserResult
+     */
+    public function setBunqMeFundraiserResult($bunqMeFundraiserResult)
+    {
+        $this->bunqMeFundraiserResult = $bunqMeFundraiserResult;
+    }
 
     /**
      * @return BunqMeTab
@@ -207,51 +212,19 @@ public function setBunqMeTabResultResponse($bunqMeTabResultResponse)
     }
 
     /**
-     * @return ChatMessageStatus
-     */
-    public function getChatMessageStatus()
-    {
-        return $this->chatMessageStatus;
-    }
-
-    /**
-     * @param ChatMessageStatus $chatMessageStatus
-     */
-    public function setChatMessageStatus($chatMessageStatus)
-    {
-        $this->chatMessageStatus = $chatMessageStatus;
-    }
-
-    /**
-     * @return ChatMessageUser
-     */
-    public function getChatMessageUser()
-    {
-        return $this->chatMessageUser;
-    }
-
-    /**
-     * @param ChatMessageUser $chatMessageUser
-     */
-    public function setChatMessageUser($chatMessageUser)
-    {
-        $this->chatMessageUser = $chatMessageUser;
-    }
-
-    /**
-     * @return ChatMessageAnnouncement
+     * @return ChatMessage
      */
-    public function getChatMessageAnnouncement()
+    public function getChatMessage()
     {
-        return $this->chatMessageAnnouncement;
+        return $this->chatMessage;
     }
 
     /**
-     * @param ChatMessageAnnouncement $chatMessageAnnouncement
+     * @param ChatMessage $chatMessage
      */
-    public function setChatMessageAnnouncement($chatMessageAnnouncement)
+    public function setChatMessage($chatMessage)
     {
-        $this->chatMessageAnnouncement = $chatMessageAnnouncement;
+        $this->chatMessage = $chatMessage;
     }
 
     /**
@@ -319,19 +292,19 @@ public function setMasterCardAction($masterCardAction)
     }
 
     /**
-     * @return MonetaryAccountBank
+     * @return MonetaryAccount
      */
-    public function getMonetaryAccountBank()
+    public function getMonetaryAccount()
     {
-        return $this->monetaryAccountBank;
+        return $this->monetaryAccount;
     }
 
     /**
-     * @param MonetaryAccountBank $monetaryAccountBank
+     * @param MonetaryAccount $monetaryAccount
      */
-    public function setMonetaryAccountBank($monetaryAccountBank)
+    public function setMonetaryAccount($monetaryAccount)
     {
-        $this->monetaryAccountBank = $monetaryAccountBank;
+        $this->monetaryAccount = $monetaryAccount;
     }
 
     /**
@@ -511,35 +484,19 @@ public function setTabResultResponse($tabResultResponse)
     }
 
     /**
-     * @return UserPerson
-     */
-    public function getUserPerson()
-    {
-        return $this->userPerson;
-    }
-
-    /**
-     * @param UserPerson $userPerson
-     */
-    public function setUserPerson($userPerson)
-    {
-        $this->userPerson = $userPerson;
-    }
-
-    /**
-     * @return UserCompany
+     * @return User
      */
-    public function getUserCompany()
+    public function getUser()
     {
-        return $this->userCompany;
+        return $this->user;
     }
 
     /**
-     * @param UserCompany $userCompany
+     * @param User $user
      */
-    public function setUserCompany($userCompany)
+    public function setUser($user)
     {
-        $this->userCompany = $userCompany;
+        $this->user = $user;
     }
 
     /**
@@ -548,6 +505,10 @@ public function setUserCompany($userCompany)
      */
     public function getReferencedObject()
     {
+        if (!is_null($this->bunqMeFundraiserResult)) {
+            return $this->bunqMeFundraiserResult;
+        }
+
         if (!is_null($this->bunqMeTab)) {
             return $this->bunqMeTab;
         }
@@ -560,16 +521,8 @@ public function getReferencedObject()
             return $this->bunqMeTabResultResponse;
         }
 
-        if (!is_null($this->chatMessageStatus)) {
-            return $this->chatMessageStatus;
-        }
-
-        if (!is_null($this->chatMessageUser)) {
-            return $this->chatMessageUser;
-        }
-
-        if (!is_null($this->chatMessageAnnouncement)) {
-            return $this->chatMessageAnnouncement;
+        if (!is_null($this->chatMessage)) {
+            return $this->chatMessage;
         }
 
         if (!is_null($this->draftPayment)) {
@@ -588,8 +541,8 @@ public function getReferencedObject()
             return $this->masterCardAction;
         }
 
-        if (!is_null($this->monetaryAccountBank)) {
-            return $this->monetaryAccountBank;
+        if (!is_null($this->monetaryAccount)) {
+            return $this->monetaryAccount;
         }
 
         if (!is_null($this->payment)) {
@@ -636,14 +589,106 @@ public function getReferencedObject()
             return $this->tabResultResponse;
         }
 
-        if (!is_null($this->userPerson)) {
-            return $this->userPerson;
+        if (!is_null($this->user)) {
+            return $this->user;
         }
 
-        if (!is_null($this->userCompany)) {
-            return $this->userCompany;
+        throw new BunqException(self::ERROR_NULL_FIELDS);
+    }
+
+    /**
+     * @return bool
+     */
+    public function isAllFieldNull()
+    {
+        if (!is_null($this->bunqMeFundraiserResult)) {
+            return false;
         }
 
-        throw new BunqException(self::ERROR_NULL_FIELDS);
+        if (!is_null($this->bunqMeTab)) {
+            return false;
+        }
+
+        if (!is_null($this->bunqMeTabResultInquiry)) {
+            return false;
+        }
+
+        if (!is_null($this->bunqMeTabResultResponse)) {
+            return false;
+        }
+
+        if (!is_null($this->chatMessage)) {
+            return false;
+        }
+
+        if (!is_null($this->draftPayment)) {
+            return false;
+        }
+
+        if (!is_null($this->idealMerchantTransaction)) {
+            return false;
+        }
+
+        if (!is_null($this->invoice)) {
+            return false;
+        }
+
+        if (!is_null($this->masterCardAction)) {
+            return false;
+        }
+
+        if (!is_null($this->monetaryAccount)) {
+            return false;
+        }
+
+        if (!is_null($this->payment)) {
+            return false;
+        }
+
+        if (!is_null($this->paymentBatch)) {
+            return false;
+        }
+
+        if (!is_null($this->requestInquiry)) {
+            return false;
+        }
+
+        if (!is_null($this->requestInquiryBatch)) {
+            return false;
+        }
+
+        if (!is_null($this->requestResponse)) {
+            return false;
+        }
+
+        if (!is_null($this->shareInviteBankInquiry)) {
+            return false;
+        }
+
+        if (!is_null($this->shareInviteBankResponse)) {
+            return false;
+        }
+
+        if (!is_null($this->scheduledPayment)) {
+            return false;
+        }
+
+        if (!is_null($this->scheduledInstance)) {
+            return false;
+        }
+
+        if (!is_null($this->tabResultInquiry)) {
+            return false;
+        }
+
+        if (!is_null($this->tabResultResponse)) {
+            return false;
+        }
+
+        if (!is_null($this->user)) {
+            return false;
+        }
+
+        return true;
     }
 }
diff --git a/src/Model/Generated/Object/NotificationFilter.php b/src/Model/Generated/Object/NotificationFilter.php
index 343ca6a4..6f408c02 100644
--- a/src/Model/Generated/Object/NotificationFilter.php
+++ b/src/Model/Generated/Object/NotificationFilter.php
@@ -112,4 +112,24 @@ public function setCategory($category)
     {
         $this->category = $category;
     }
+
+    /**
+     * @return bool
+     */
+    public function isAllFieldNull()
+    {
+        if (!is_null($this->notificationDeliveryMethod)) {
+            return false;
+        }
+
+        if (!is_null($this->notificationTarget)) {
+            return false;
+        }
+
+        if (!is_null($this->category)) {
+            return false;
+        }
+
+        return true;
+    }
 }
diff --git a/src/Model/Generated/Object/NotificationUrl.php b/src/Model/Generated/Object/NotificationUrl.php
index 5b7238d2..dfc80982 100644
--- a/src/Model/Generated/Object/NotificationUrl.php
+++ b/src/Model/Generated/Object/NotificationUrl.php
@@ -91,4 +91,28 @@ public function setObject($object)
     {
         $this->object = $object;
     }
+
+    /**
+     * @return bool
+     */
+    public function isAllFieldNull()
+    {
+        if (!is_null($this->targetUrl)) {
+            return false;
+        }
+
+        if (!is_null($this->category)) {
+            return false;
+        }
+
+        if (!is_null($this->eventType)) {
+            return false;
+        }
+
+        if (!is_null($this->object)) {
+            return false;
+        }
+
+        return true;
+    }
 }
diff --git a/src/Model/Generated/Object/PermittedDevice.php b/src/Model/Generated/Object/PermittedDevice.php
index 022ce1e1..95e99c97 100644
--- a/src/Model/Generated/Object/PermittedDevice.php
+++ b/src/Model/Generated/Object/PermittedDevice.php
@@ -57,4 +57,20 @@ public function setIp($ip)
     {
         $this->ip = $ip;
     }
+
+    /**
+     * @return bool
+     */
+    public function isAllFieldNull()
+    {
+        if (!is_null($this->description)) {
+            return false;
+        }
+
+        if (!is_null($this->ip)) {
+            return false;
+        }
+
+        return true;
+    }
 }
diff --git a/src/Model/Generated/Object/Pointer.php b/src/Model/Generated/Object/Pointer.php
index 904d3e2f..c3d31983 100644
--- a/src/Model/Generated/Object/Pointer.php
+++ b/src/Model/Generated/Object/Pointer.php
@@ -92,4 +92,24 @@ public function setName($name)
     {
         $this->name = $name;
     }
+
+    /**
+     * @return bool
+     */
+    public function isAllFieldNull()
+    {
+        if (!is_null($this->type)) {
+            return false;
+        }
+
+        if (!is_null($this->value)) {
+            return false;
+        }
+
+        if (!is_null($this->name)) {
+            return false;
+        }
+
+        return true;
+    }
 }
diff --git a/src/Model/Generated/Object/ScheduleAnchorObject.php b/src/Model/Generated/Object/ScheduleAnchorObject.php
index 33323ff6..3fa55f76 100644
--- a/src/Model/Generated/Object/ScheduleAnchorObject.php
+++ b/src/Model/Generated/Object/ScheduleAnchorObject.php
@@ -2,6 +2,7 @@
 namespace bunq\Model\Generated\Object;
 
 use bunq\exception\BunqException;
+use bunq\Model\Core\AnchorObjectInterface;
 use bunq\Model\Core\BunqModel;
 use bunq\Model\Generated\Endpoint\Payment;
 use bunq\Model\Generated\Endpoint\PaymentBatch;
@@ -9,7 +10,7 @@
 /**
  * @generated
  */
-class ScheduleAnchorObject extends BunqModel
+class ScheduleAnchorObject extends BunqModel implements AnchorObjectInterface
 {
     /**
      * Error constants.
@@ -74,4 +75,20 @@ public function getReferencedObject()
 
         throw new BunqException(self::ERROR_NULL_FIELDS);
     }
+
+    /**
+     * @return bool
+     */
+    public function isAllFieldNull()
+    {
+        if (!is_null($this->payment)) {
+            return false;
+        }
+
+        if (!is_null($this->paymentBatch)) {
+            return false;
+        }
+
+        return true;
+    }
 }
diff --git a/src/Model/Generated/Object/ScheduleInstanceAnchorObject.php b/src/Model/Generated/Object/ScheduleInstanceAnchorObject.php
index 620d799a..93046628 100644
--- a/src/Model/Generated/Object/ScheduleInstanceAnchorObject.php
+++ b/src/Model/Generated/Object/ScheduleInstanceAnchorObject.php
@@ -2,6 +2,7 @@
 namespace bunq\Model\Generated\Object;
 
 use bunq\exception\BunqException;
+use bunq\Model\Core\AnchorObjectInterface;
 use bunq\Model\Core\BunqModel;
 use bunq\Model\Generated\Endpoint\Payment;
 use bunq\Model\Generated\Endpoint\PaymentBatch;
@@ -9,7 +10,7 @@
 /**
  * @generated
  */
-class ScheduleInstanceAnchorObject extends BunqModel
+class ScheduleInstanceAnchorObject extends BunqModel implements AnchorObjectInterface
 {
     /**
      * Error constants.
@@ -74,4 +75,20 @@ public function getReferencedObject()
 
         throw new BunqException(self::ERROR_NULL_FIELDS);
     }
+
+    /**
+     * @return bool
+     */
+    public function isAllFieldNull()
+    {
+        if (!is_null($this->payment)) {
+            return false;
+        }
+
+        if (!is_null($this->paymentBatch)) {
+            return false;
+        }
+
+        return true;
+    }
 }
diff --git a/src/Model/Generated/Object/SchedulePaymentEntry.php b/src/Model/Generated/Object/SchedulePaymentEntry.php
index 3e894c7e..946c2507 100644
--- a/src/Model/Generated/Object/SchedulePaymentEntry.php
+++ b/src/Model/Generated/Object/SchedulePaymentEntry.php
@@ -189,4 +189,36 @@ public function setMerchantReference($merchantReference)
     {
         $this->merchantReference = $merchantReference;
     }
+
+    /**
+     * @return bool
+     */
+    public function isAllFieldNull()
+    {
+        if (!is_null($this->amount)) {
+            return false;
+        }
+
+        if (!is_null($this->alias)) {
+            return false;
+        }
+
+        if (!is_null($this->counterpartyAlias)) {
+            return false;
+        }
+
+        if (!is_null($this->description)) {
+            return false;
+        }
+
+        if (!is_null($this->attachment)) {
+            return false;
+        }
+
+        if (!is_null($this->merchantReference)) {
+            return false;
+        }
+
+        return true;
+    }
 }
diff --git a/src/Model/Generated/Object/ShareDetail.php b/src/Model/Generated/Object/ShareDetail.php
index f6514067..b17f9a48 100644
--- a/src/Model/Generated/Object/ShareDetail.php
+++ b/src/Model/Generated/Object/ShareDetail.php
@@ -98,4 +98,24 @@ public function setDraftPayment($draftPayment)
     {
         $this->draftPayment = $draftPayment;
     }
+
+    /**
+     * @return bool
+     */
+    public function isAllFieldNull()
+    {
+        if (!is_null($this->payment)) {
+            return false;
+        }
+
+        if (!is_null($this->readOnly)) {
+            return false;
+        }
+
+        if (!is_null($this->draftPayment)) {
+            return false;
+        }
+
+        return true;
+    }
 }
diff --git a/src/Model/Generated/Object/ShareDetailDraftPayment.php b/src/Model/Generated/Object/ShareDetailDraftPayment.php
index de24ac00..832b4f86 100644
--- a/src/Model/Generated/Object/ShareDetailDraftPayment.php
+++ b/src/Model/Generated/Object/ShareDetailDraftPayment.php
@@ -129,4 +129,28 @@ public function setViewNewEvents($viewNewEvents)
     {
         $this->viewNewEvents = $viewNewEvents;
     }
+
+    /**
+     * @return bool
+     */
+    public function isAllFieldNull()
+    {
+        if (!is_null($this->makeDraftPayments)) {
+            return false;
+        }
+
+        if (!is_null($this->viewBalance)) {
+            return false;
+        }
+
+        if (!is_null($this->viewOldEvents)) {
+            return false;
+        }
+
+        if (!is_null($this->viewNewEvents)) {
+            return false;
+        }
+
+        return true;
+    }
 }
diff --git a/src/Model/Generated/Object/ShareDetailPayment.php b/src/Model/Generated/Object/ShareDetailPayment.php
index 222abd91..ad697c27 100644
--- a/src/Model/Generated/Object/ShareDetailPayment.php
+++ b/src/Model/Generated/Object/ShareDetailPayment.php
@@ -181,4 +181,36 @@ public function setBudget($budget)
     {
         $this->budget = $budget;
     }
+
+    /**
+     * @return bool
+     */
+    public function isAllFieldNull()
+    {
+        if (!is_null($this->makePayments)) {
+            return false;
+        }
+
+        if (!is_null($this->makeDraftPayments)) {
+            return false;
+        }
+
+        if (!is_null($this->viewBalance)) {
+            return false;
+        }
+
+        if (!is_null($this->viewOldEvents)) {
+            return false;
+        }
+
+        if (!is_null($this->viewNewEvents)) {
+            return false;
+        }
+
+        if (!is_null($this->budget)) {
+            return false;
+        }
+
+        return true;
+    }
 }
diff --git a/src/Model/Generated/Object/ShareDetailReadOnly.php b/src/Model/Generated/Object/ShareDetailReadOnly.php
index 41fdc5fa..7a9fb1ba 100644
--- a/src/Model/Generated/Object/ShareDetailReadOnly.php
+++ b/src/Model/Generated/Object/ShareDetailReadOnly.php
@@ -100,4 +100,24 @@ public function setViewNewEvents($viewNewEvents)
     {
         $this->viewNewEvents = $viewNewEvents;
     }
+
+    /**
+     * @return bool
+     */
+    public function isAllFieldNull()
+    {
+        if (!is_null($this->viewBalance)) {
+            return false;
+        }
+
+        if (!is_null($this->viewOldEvents)) {
+            return false;
+        }
+
+        if (!is_null($this->viewNewEvents)) {
+            return false;
+        }
+
+        return true;
+    }
 }
diff --git a/src/Model/Generated/Object/TabTextWaitingScreen.php b/src/Model/Generated/Object/TabTextWaitingScreen.php
index 32f8b674..71d1cc82 100644
--- a/src/Model/Generated/Object/TabTextWaitingScreen.php
+++ b/src/Model/Generated/Object/TabTextWaitingScreen.php
@@ -67,4 +67,20 @@ public function setDescription($description)
     {
         $this->description = $description;
     }
+
+    /**
+     * @return bool
+     */
+    public function isAllFieldNull()
+    {
+        if (!is_null($this->language)) {
+            return false;
+        }
+
+        if (!is_null($this->description)) {
+            return false;
+        }
+
+        return true;
+    }
 }
diff --git a/src/Model/Generated/Object/TabVisibility.php b/src/Model/Generated/Object/TabVisibility.php
index 6683561e..3c8e2caa 100644
--- a/src/Model/Generated/Object/TabVisibility.php
+++ b/src/Model/Generated/Object/TabVisibility.php
@@ -94,4 +94,24 @@ public function setLocation($location)
     {
         $this->location = $location;
     }
+
+    /**
+     * @return bool
+     */
+    public function isAllFieldNull()
+    {
+        if (!is_null($this->cashRegisterQrCode)) {
+            return false;
+        }
+
+        if (!is_null($this->tabQrCode)) {
+            return false;
+        }
+
+        if (!is_null($this->location)) {
+            return false;
+        }
+
+        return true;
+    }
 }
diff --git a/src/Model/Generated/Object/TaxResident.php b/src/Model/Generated/Object/TaxResident.php
index 71468d3e..2c64c0a3 100644
--- a/src/Model/Generated/Object/TaxResident.php
+++ b/src/Model/Generated/Object/TaxResident.php
@@ -67,4 +67,20 @@ public function setTaxNumber($taxNumber)
     {
         $this->taxNumber = $taxNumber;
     }
+
+    /**
+     * @return bool
+     */
+    public function isAllFieldNull()
+    {
+        if (!is_null($this->country)) {
+            return false;
+        }
+
+        if (!is_null($this->taxNumber)) {
+            return false;
+        }
+
+        return true;
+    }
 }
diff --git a/src/Model/Generated/Object/Ubo.php b/src/Model/Generated/Object/Ubo.php
index d32aa891..222388a0 100644
--- a/src/Model/Generated/Object/Ubo.php
+++ b/src/Model/Generated/Object/Ubo.php
@@ -82,4 +82,24 @@ public function setNationality($nationality)
     {
         $this->nationality = $nationality;
     }
+
+    /**
+     * @return bool
+     */
+    public function isAllFieldNull()
+    {
+        if (!is_null($this->name)) {
+            return false;
+        }
+
+        if (!is_null($this->dateOfBirth)) {
+            return false;
+        }
+
+        if (!is_null($this->nationality)) {
+            return false;
+        }
+
+        return true;
+    }
 }
diff --git a/src/Util/InstallationUtil.php b/src/Util/InstallationUtil.php
index 6f2cd614..f7c89e11 100644
--- a/src/Util/InstallationUtil.php
+++ b/src/Util/InstallationUtil.php
@@ -190,7 +190,7 @@ private static function createAccessibleReflectionMethod(string $class, string $
      *
      * @return string[]
      */
-    private static function formatIps(string $permittedIpsInput): array
+    private static function formatIps(string $permittedIpsInput = null): array
     {
         if (is_null($permittedIpsInput)) {
             $permittedIps = [];
diff --git a/src/Util/ModelUtil.php b/src/Util/ModelUtil.php
index 5855a369..9694321e 100644
--- a/src/Util/ModelUtil.php
+++ b/src/Util/ModelUtil.php
@@ -45,6 +45,22 @@ public static function deserializeResponseArray(string $json): array
      * @throws BunqException when the model is not defined.
      */
     public static function determineModelClassNameQualified(string $model): string
+    {
+        $classNameModel = static::getModelClassNameQualifiedOrNull($model);
+
+        if (is_null($classNameModel)) {
+            throw new BunqException(self::ERROR_MODEL_NOT_DEFINED, [$model]);
+        }
+
+        return $classNameModel;
+    }
+
+    /**
+     * @param string $model
+     *
+     * @return null|string
+     */
+    public static function getModelClassNameQualifiedOrNull(string $model)
     {
         $classNameOverride = vsprintf(self::FORMAT_QUALIFIED_OVERRIDE_TYPE, [$model]);
         $classNameModel = vsprintf(self::FORMAT_QUALIFIED_MODEL_TYPE, [$model]);
@@ -57,7 +73,7 @@ public static function determineModelClassNameQualified(string $model): string
         } elseif (static::isClassSubClassOfBunqModel($classNameObject)) {
             return $classNameObject;
         } else {
-            throw new BunqException(self::ERROR_MODEL_NOT_DEFINED, [$model]);
+            return null;
         }
     }
 
diff --git a/tests/Model/Generated/Object/NotificationUrlTest.php b/tests/Model/Generated/Object/NotificationUrlTest.php
index 8f9190b4..8547fb60 100644
--- a/tests/Model/Generated/Object/NotificationUrlTest.php
+++ b/tests/Model/Generated/Object/NotificationUrlTest.php
@@ -1,12 +1,13 @@
 <?php
 namespace bunq\test\Model\Object;
 
-use bunq\Exception\BunqException;
 use bunq\Model\Core\BunqModel;
 use bunq\Model\Generated\Endpoint\BunqMeTab;
+use bunq\Model\Generated\Endpoint\ChatMessage;
 use bunq\Model\Generated\Endpoint\ChatMessageAnnouncement;
 use bunq\Model\Generated\Endpoint\DraftPayment;
 use bunq\Model\Generated\Endpoint\MasterCardAction;
+use bunq\Model\Generated\Endpoint\MonetaryAccount;
 use bunq\Model\Generated\Endpoint\MonetaryAccountBank;
 use bunq\Model\Generated\Endpoint\Payment;
 use bunq\Model\Generated\Endpoint\PaymentBatch;
@@ -37,10 +38,12 @@ class NotificationUrlTest extends BunqSdkTestBase
      */
     const GETTER_PAYMENT = 'getPayment';
     const GETTER_BUNQ_ME_TAB = 'getBunqMeTab';
+    const GETTER_CHAT_MESSAGE = 'getChatMessage';
     const GETTER_CHAT_MESSAGE_ANNOUNCEMENT = 'getChatMessageAnnouncement';
     const GETTER_DRAFT_PAYMENT = 'getDraftPayment';
     const GETTER_MASTER_CARD_ACTION = 'getMasterCardAction';
-    const GETTER_MONETARY_ACCOUNT_BANK = 'getMonetaryAccountBank';
+    const GETTER_MONETARY_ACCOUNT = 'getMonetaryAccount';
+    const GETTER_MONETARY_ACCOUNT_BANK= 'getMonetaryAccountBank';
     const GETTER_PAYMENT_BATCH = 'getPaymentBatch';
     const GETTER_REQUEST_INQUIRY = 'getRequestInquiry';
     const GETTER_REQUEST_RESPONSE = 'getRequestResponse';
@@ -100,8 +103,10 @@ public function testGetMonetaryAccountModel()
     {
         $this->executeNotificationUrlTest(
             self::JSON_PATH_MONETARY_ACCOUNT_BANK_MODEL,
-            MonetaryAccountBank::class,
-            self::GETTER_MONETARY_ACCOUNT_BANK
+            MonetaryAccount::class,
+            self::GETTER_MONETARY_ACCOUNT,
+            self::GETTER_MONETARY_ACCOUNT_BANK,
+            MonetaryAccountBank::class
         );
     }
     
@@ -199,8 +204,10 @@ public function testChatMessageAnnouncementModel()
     {
         $this->executeNotificationUrlTest(
             self::JSON_PATH_CHAT_MESSAGE_ANNOUNCEMENT_MODEL,
-            ChatMessageAnnouncement::class,
-            self::GETTER_CHAT_MESSAGE_ANNOUNCEMENT
+            ChatMessage::class,
+            self::GETTER_CHAT_MESSAGE,
+            self::GETTER_CHAT_MESSAGE_ANNOUNCEMENT,
+            ChatMessageAnnouncement::class
         );
     }
 
@@ -219,11 +226,15 @@ public function testDraftPaymentModel()
      * @param string $expectedJsonFileName
      * @param string $classNameExpected
      * @param string $referencedObjectGetterName
+     * @param string|null $subClassObjectGetterName
+     * @param string|null $subClassNameExpected
      */
     private function executeNotificationUrlTest(
         string $expectedJsonFileName,
         string $classNameExpected,
-        string $referencedObjectGetterName
+        string $referencedObjectGetterName,
+        string $subClassObjectGetterName = null,
+        string $subClassNameExpected = null
     ) {
         $jsonExpectedString = FileUtil::getFileContents($expectedJsonFileName);
         $notificationUrl = $this->getNotificationUrlFromJson($jsonExpectedString);
@@ -234,6 +245,13 @@ private function executeNotificationUrlTest(
         static::assertNotNull($model);
         static::assertNotNull($referencedModel);
         static::assertInstanceOf($classNameExpected, $referencedModel);
+
+        if (!is_null($subClassObjectGetterName)) {
+            $subClassModel = $referencedModel->$subClassObjectGetterName();
+
+            static::assertNotNull($subClassModel);
+            static::assertInstanceOf($subClassNameExpected, $subClassModel);
+        }
     }
 
     /**