fix: Make first_id and last_id nullable in list endpoints in openai_dart

packages/openai_dart/lib/src/generated/schema/list_assistants_response.dart

@@ -22,10 +22,10 @@ class ListAssistantsResponse with _$ListAssistantsResponse {
     required List<AssistantObject> data,
 
     /// The ID of the first assistant in the list.
-    @JsonKey(name: 'first_id') required String firstId,
+    @JsonKey(name: 'first_id', includeIfNull: false) String? firstId,
 
     /// The ID of the last assistant in the list.
-    @JsonKey(name: 'last_id') required String lastId,
+    @JsonKey(name: 'last_id', includeIfNull: false) String? lastId,
 
     /// Whether there are more assistants to retrieve.
     @JsonKey(name: 'has_more') required bool hasMore,

packages/openai_dart/lib/src/generated/schema/list_messages_response.dart

@@ -22,10 +22,10 @@ class ListMessagesResponse with _$ListMessagesResponse {
     required List<MessageObject> data,
 
     /// The ID of the first message in the list.
-    @JsonKey(name: 'first_id') required String firstId,
+    @JsonKey(name: 'first_id', includeIfNull: false) String? firstId,
 
     /// The ID of the last message in the list.
-    @JsonKey(name: 'last_id') required String lastId,
+    @JsonKey(name: 'last_id', includeIfNull: false) String? lastId,
 
     /// Whether there are more messages to retrieve.
     @JsonKey(name: 'has_more') required bool hasMore,

packages/openai_dart/lib/src/generated/schema/list_run_steps_response.dart

@@ -22,10 +22,10 @@ class ListRunStepsResponse with _$ListRunStepsResponse {
     required List<RunStepObject> data,
 
     /// The ID of the first run step in the list.
-    @JsonKey(name: 'first_id') required String firstId,
+    @JsonKey(name: 'first_id', includeIfNull: false) String? firstId,
 
     /// The ID of the last run step in the list.
-    @JsonKey(name: 'last_id') required String lastId,
+    @JsonKey(name: 'last_id', includeIfNull: false) String? lastId,
 
     /// Whether there are more run steps to retrieve.
     @JsonKey(name: 'has_more') required bool hasMore,

packages/openai_dart/lib/src/generated/schema/list_runs_response.dart

@@ -22,10 +22,10 @@ class ListRunsResponse with _$ListRunsResponse {
     required List<RunObject> data,
 
     /// The ID of the first run in the list.
-    @JsonKey(name: 'first_id') required String firstId,
+    @JsonKey(name: 'first_id', includeIfNull: false) String? firstId,
 
     /// The ID of the last run in the list.
-    @JsonKey(name: 'last_id') required String lastId,
+    @JsonKey(name: 'last_id', includeIfNull: false) String? lastId,
 
     /// Whether there are more runs to retrieve.
     @JsonKey(name: 'has_more') required bool hasMore,

packages/openai_dart/lib/src/generated/schema/list_threads_response.dart

@@ -22,10 +22,10 @@ class ListThreadsResponse with _$ListThreadsResponse {
     required List<ThreadObject> data,
 
     /// The ID of the first thread in the list.
-    @JsonKey(name: 'first_id') required String firstId,
+    @JsonKey(name: 'first_id', includeIfNull: false) String? firstId,
 
     /// The ID of the last thread in the list.
-    @JsonKey(name: 'last_id') required String lastId,
+    @JsonKey(name: 'last_id', includeIfNull: false) String? lastId,
 
     /// Whether there are more threads to retrieve.
     @JsonKey(name: 'has_more') required bool hasMore,

packages/openai_dart/lib/src/generated/schema/list_vector_store_files_response.dart

@@ -22,10 +22,10 @@ class ListVectorStoreFilesResponse with _$ListVectorStoreFilesResponse {
     required List<VectorStoreFileObject> data,
 
     /// The ID of the first message file in the list.
-    @JsonKey(name: 'first_id') required String firstId,
+    @JsonKey(name: 'first_id', includeIfNull: false) String? firstId,
 
     /// The ID of the last message file in the list.
-    @JsonKey(name: 'last_id') required String lastId,
+    @JsonKey(name: 'last_id', includeIfNull: false) String? lastId,
 
     /// Whether there are more message files available.
     @JsonKey(name: 'has_more') required bool hasMore,

packages/openai_dart/lib/src/generated/schema/list_vector_stores_response.dart

@@ -22,10 +22,10 @@ class ListVectorStoresResponse with _$ListVectorStoresResponse {
     required List<VectorStoreObject> data,
 
     /// The ID of the first assistant file in the list.
-    @JsonKey(name: 'first_id') required String? firstId,
+    @JsonKey(name: 'first_id', includeIfNull: false) String? firstId,
 
     /// The ID of the last assistant file in the list.
-    @JsonKey(name: 'last_id') required String? lastId,
+    @JsonKey(name: 'last_id', includeIfNull: false) String? lastId,
 
     /// Whether there are more assistant files available.
     @JsonKey(name: 'has_more') required bool hasMore,