diff --git a/modules/openapi-generator/src/main/resources/dart/libraries/dio/lib.mustache b/modules/openapi-generator/src/main/resources/dart/libraries/dio/lib.mustache
index 1ac711810617..63b1ce28e031 100644
--- a/modules/openapi-generator/src/main/resources/dart/libraries/dio/lib.mustache
+++ b/modules/openapi-generator/src/main/resources/dart/libraries/dio/lib.mustache
@@ -2,6 +2,7 @@
 export 'package:{{pubName}}/{{sourceFolder}}/api.dart';
 export 'package:{{pubName}}/{{sourceFolder}}/auth/api_key_auth.dart';
 export 'package:{{pubName}}/{{sourceFolder}}/auth/basic_auth.dart';
+export 'package:{{pubName}}/{{sourceFolder}}/auth/bearer_auth.dart';
 export 'package:{{pubName}}/{{sourceFolder}}/auth/oauth.dart';
 {{#useBuiltValue}}export 'package:{{pubName}}/{{sourceFolder}}/serializers.dart';
 {{#useDateLibCore}}export 'package:{{pubName}}/{{sourceFolder}}/{{modelPackage}}/date.dart';{{/useDateLibCore}}{{/useBuiltValue}}
@@ -9,4 +10,4 @@ export 'package:{{pubName}}/{{sourceFolder}}/auth/oauth.dart';
 {{#apiInfo}}{{#apis}}export 'package:{{pubName}}/{{sourceFolder}}/{{apiPackage}}/{{classFilename}}.dart';
 {{/apis}}{{/apiInfo}}
 {{#models}}{{#model}}export 'package:{{pubName}}/{{sourceFolder}}/{{modelPackage}}/{{classFilename}}.dart';
-{{/model}}{{/models}}
\ No newline at end of file
+{{/model}}{{/models}}
diff --git a/samples/openapi3/client/petstore/dart-dio/oneof/lib/openapi.dart b/samples/openapi3/client/petstore/dart-dio/oneof/lib/openapi.dart
index d85a16fc6ad9..bdddadb4c579 100644
--- a/samples/openapi3/client/petstore/dart-dio/oneof/lib/openapi.dart
+++ b/samples/openapi3/client/petstore/dart-dio/oneof/lib/openapi.dart
@@ -5,6 +5,7 @@
 export 'package:openapi/src/api.dart';
 export 'package:openapi/src/auth/api_key_auth.dart';
 export 'package:openapi/src/auth/basic_auth.dart';
+export 'package:openapi/src/auth/bearer_auth.dart';
 export 'package:openapi/src/auth/oauth.dart';
 export 'package:openapi/src/serializers.dart';
 export 'package:openapi/src/model/date.dart';
@@ -14,3 +15,4 @@ export 'package:openapi/src/api/default_api.dart';
 export 'package:openapi/src/model/apple.dart';
 export 'package:openapi/src/model/banana.dart';
 export 'package:openapi/src/model/fruit.dart';
+
diff --git a/samples/openapi3/client/petstore/dart-dio/oneof_polymorphism_and_inheritance/lib/openapi.dart b/samples/openapi3/client/petstore/dart-dio/oneof_polymorphism_and_inheritance/lib/openapi.dart
index a124752d7bf6..80b852dd0d54 100644
--- a/samples/openapi3/client/petstore/dart-dio/oneof_polymorphism_and_inheritance/lib/openapi.dart
+++ b/samples/openapi3/client/petstore/dart-dio/oneof_polymorphism_and_inheritance/lib/openapi.dart
@@ -5,6 +5,7 @@
 export 'package:openapi/src/api.dart';
 export 'package:openapi/src/auth/api_key_auth.dart';
 export 'package:openapi/src/auth/basic_auth.dart';
+export 'package:openapi/src/auth/bearer_auth.dart';
 export 'package:openapi/src/auth/oauth.dart';
 export 'package:openapi/src/serializers.dart';
 export 'package:openapi/src/model/date.dart';
@@ -30,3 +31,4 @@ export 'package:openapi/src/model/fruit_type.dart';
 export 'package:openapi/src/model/pasta.dart';
 export 'package:openapi/src/model/pizza.dart';
 export 'package:openapi/src/model/pizza_speziale.dart';
+
diff --git a/samples/openapi3/client/petstore/dart-dio/oneof_primitive/lib/openapi.dart b/samples/openapi3/client/petstore/dart-dio/oneof_primitive/lib/openapi.dart
index 220621d6961b..cc70cf5fc6b4 100644
--- a/samples/openapi3/client/petstore/dart-dio/oneof_primitive/lib/openapi.dart
+++ b/samples/openapi3/client/petstore/dart-dio/oneof_primitive/lib/openapi.dart
@@ -5,6 +5,7 @@
 export 'package:openapi/src/api.dart';
 export 'package:openapi/src/auth/api_key_auth.dart';
 export 'package:openapi/src/auth/basic_auth.dart';
+export 'package:openapi/src/auth/bearer_auth.dart';
 export 'package:openapi/src/auth/oauth.dart';
 export 'package:openapi/src/serializers.dart';
 export 'package:openapi/src/model/date.dart';
@@ -13,3 +14,4 @@ export 'package:openapi/src/api/default_api.dart';
 
 export 'package:openapi/src/model/child.dart';
 export 'package:openapi/src/model/example.dart';
+
diff --git a/samples/openapi3/client/petstore/dart-dio/petstore_client_lib_fake-json_serializable/lib/openapi.dart b/samples/openapi3/client/petstore/dart-dio/petstore_client_lib_fake-json_serializable/lib/openapi.dart
index 0d9629c97823..a462009ebf73 100644
--- a/samples/openapi3/client/petstore/dart-dio/petstore_client_lib_fake-json_serializable/lib/openapi.dart
+++ b/samples/openapi3/client/petstore/dart-dio/petstore_client_lib_fake-json_serializable/lib/openapi.dart
@@ -5,6 +5,7 @@
 export 'package:openapi/src/api.dart';
 export 'package:openapi/src/auth/api_key_auth.dart';
 export 'package:openapi/src/auth/basic_auth.dart';
+export 'package:openapi/src/auth/bearer_auth.dart';
 export 'package:openapi/src/auth/oauth.dart';
 
 
@@ -66,3 +67,4 @@ export 'package:openapi/src/model/special_model_name.dart';
 export 'package:openapi/src/model/tag.dart';
 export 'package:openapi/src/model/test_inline_freeform_additional_properties_request.dart';
 export 'package:openapi/src/model/user.dart';
+
diff --git a/samples/openapi3/client/petstore/dart-dio/petstore_client_lib_fake/lib/openapi.dart b/samples/openapi3/client/petstore/dart-dio/petstore_client_lib_fake/lib/openapi.dart
index 8bb0e47afdb7..8b407aba3bcc 100644
--- a/samples/openapi3/client/petstore/dart-dio/petstore_client_lib_fake/lib/openapi.dart
+++ b/samples/openapi3/client/petstore/dart-dio/petstore_client_lib_fake/lib/openapi.dart
@@ -5,6 +5,7 @@
 export 'package:openapi/src/api.dart';
 export 'package:openapi/src/auth/api_key_auth.dart';
 export 'package:openapi/src/auth/basic_auth.dart';
+export 'package:openapi/src/auth/bearer_auth.dart';
 export 'package:openapi/src/auth/oauth.dart';
 export 'package:openapi/src/serializers.dart';
 export 'package:openapi/src/model/date.dart';
@@ -67,3 +68,4 @@ export 'package:openapi/src/model/special_model_name.dart';
 export 'package:openapi/src/model/tag.dart';
 export 'package:openapi/src/model/test_inline_freeform_additional_properties_request.dart';
 export 'package:openapi/src/model/user.dart';
+