fix swift mapping with int and number

samples/client/petstore/python/swagger_client/models/__init__.py

@@ -5,6 +5,7 @@ from .animal import Animal
 from .cat import Cat
 from .category import Category
 from .dog import Dog
+from .format_test import FormatTest
 from .inline_response_200 import InlineResponse200
 from .model_200_response import Model200Response
 from .model_return import ModelReturn