Init options with default parameter values (#1699)

Author: ob-stripe

src/Stripe.net/Services/BankAccounts/BankAccountService.cs

@@ -60,17 +60,17 @@ public virtual BankAccount Get(string customerId, string bankAccountId, BankAcco
 
         public virtual StripeList<BankAccount> List(string customerId, BankAccountListOptions options = null, RequestOptions requestOptions = null)
         {
-            return this.ListNestedEntities(customerId, options, requestOptions);
+            return this.ListNestedEntities(customerId, options ?? new BankAccountListOptions(), requestOptions);
         }
 
         public virtual Task<StripeList<BankAccount>> ListAsync(string customerId, BankAccountListOptions options = null, RequestOptions requestOptions = null, CancellationToken cancellationToken = default(CancellationToken))
         {
-            return this.ListNestedEntitiesAsync(customerId, options, requestOptions, cancellationToken);
+            return this.ListNestedEntitiesAsync(customerId, options ?? new BankAccountListOptions(), requestOptions, cancellationToken);
         }
 
         public virtual IEnumerable<BankAccount> ListAutoPaging(string customerId, BankAccountListOptions options = null, RequestOptions requestOptions = null)
         {
-            return this.ListNestedEntitiesAutoPaging(customerId, options, requestOptions);
+            return this.ListNestedEntitiesAutoPaging(customerId, options ?? new BankAccountListOptions(), requestOptions);
         }
 
         public virtual BankAccount Update(string customerId, string bankAccountId, BankAccountUpdateOptions options, RequestOptions requestOptions = null)

src/Stripe.net/Services/Cards/CardService.cs

@@ -62,17 +62,17 @@ public virtual Card Get(string customerId, string cardId, CardGetOptions options
 
         public virtual StripeList<Card> List(string customerId, CardListOptions options = null, RequestOptions requestOptions = null)
         {
-            return this.ListNestedEntities(customerId, options, requestOptions);
+            return this.ListNestedEntities(customerId, options ?? new CardListOptions(), requestOptions);
         }
 
         public virtual Task<StripeList<Card>> ListAsync(string customerId, CardListOptions options = null, RequestOptions requestOptions = null, CancellationToken cancellationToken = default(CancellationToken))
         {
-            return this.ListNestedEntitiesAsync(customerId, options, requestOptions, cancellationToken);
+            return this.ListNestedEntitiesAsync(customerId, options ?? new CardListOptions(), requestOptions, cancellationToken);
         }
 
         public virtual IEnumerable<Card> ListAutoPaging(string customerId, CardListOptions options = null, RequestOptions requestOptions = null)
         {
-            return this.ListNestedEntitiesAutoPaging(customerId, options, requestOptions);
+            return this.ListNestedEntitiesAutoPaging(customerId, options ?? new CardListOptions(), requestOptions);
         }
 
         public virtual Card Update(string customerId, string cardId, CardUpdateOptions options, RequestOptions requestOptions = null)

src/Stripe.net/Services/Sources/SourceService.cs

@@ -66,17 +66,17 @@ public virtual Source Get(string sourceId, SourceGetOptions options = null, Requ
 
         public virtual StripeList<Source> List(string customerId, SourceListOptions options = null, RequestOptions requestOptions = null)
         {
-            return this.Request<StripeList<Source>>(HttpMethod.Get, $"/v1/customers/{customerId}/sources", options, requestOptions);
+            return this.Request<StripeList<Source>>(HttpMethod.Get, $"/v1/customers/{customerId}/sources", options ?? new SourceListOptions(), requestOptions);
         }
 
         public virtual Task<StripeList<Source>> ListAsync(string customerId, SourceListOptions options = null, RequestOptions requestOptions = null, CancellationToken cancellationToken = default(CancellationToken))
         {
-            return this.RequestAsync<StripeList<Source>>(HttpMethod.Get, $"/v1/customers/{customerId}/sources", options, requestOptions, cancellationToken);
+            return this.RequestAsync<StripeList<Source>>(HttpMethod.Get, $"/v1/customers/{customerId}/sources", options ?? new SourceListOptions(), requestOptions, cancellationToken);
         }
 
         public virtual IEnumerable<Source> ListAutoPaging(string customerId, SourceListOptions options = null, RequestOptions requestOptions = null)
         {
-            return this.ListRequestAutoPaging<Source>($"/v1/customers/{customerId}/sources", options, requestOptions);
+            return this.ListRequestAutoPaging<Source>($"/v1/customers/{customerId}/sources", options ?? new SourceListOptions(), requestOptions);
         }
 
         public virtual Source Update(string sourceId, SourceUpdateOptions options, RequestOptions requestOptions = null)