fixed blank space issue and updated samples

Author: HugoMario

modules/swagger-codegen/src/main/resources/python/model.mustache

@@ -7,6 +7,7 @@ import re  # noqa: F401
 
 import six
 
+
 {{#models}}
 {{#model}}
 class {{classname}}(object):

samples/client/petstore/python-asyncio/petstore_api/models/additional_properties_class.py

@@ -16,6 +16,7 @@
 
 import six
 
+
 class AdditionalPropertiesClass(object):
     """NOTE: This class is auto generated by the swagger code generator program.
 

samples/client/petstore/python-asyncio/petstore_api/models/animal.py

@@ -16,6 +16,7 @@
 
 import six
 
+
 class Animal(object):
     """NOTE: This class is auto generated by the swagger code generator program.
 

samples/client/petstore/python-asyncio/petstore_api/models/animal_farm.py

@@ -16,6 +16,7 @@
 
 import six
 
+
 class AnimalFarm(object):
     """NOTE: This class is auto generated by the swagger code generator program.
 

samples/client/petstore/python-asyncio/petstore_api/models/api_response.py

@@ -16,6 +16,7 @@
 
 import six
 
+
 class ApiResponse(object):
     """NOTE: This class is auto generated by the swagger code generator program.
 

samples/client/petstore/python-asyncio/petstore_api/models/array_of_array_of_number_only.py

@@ -16,6 +16,7 @@
 
 import six
 
+
 class ArrayOfArrayOfNumberOnly(object):
     """NOTE: This class is auto generated by the swagger code generator program.
 

samples/client/petstore/python-asyncio/petstore_api/models/array_of_number_only.py

@@ -16,6 +16,7 @@
 
 import six
 
+
 class ArrayOfNumberOnly(object):
     """NOTE: This class is auto generated by the swagger code generator program.
 

samples/client/petstore/python-asyncio/petstore_api/models/array_test.py

@@ -16,6 +16,7 @@
 
 import six
 
+
 class ArrayTest(object):
     """NOTE: This class is auto generated by the swagger code generator program.
 

samples/client/petstore/python-asyncio/petstore_api/models/capitalization.py

@@ -16,6 +16,7 @@
 
 import six
 
+
 class Capitalization(object):
     """NOTE: This class is auto generated by the swagger code generator program.
 

samples/client/petstore/python-asyncio/petstore_api/models/cat.py

@@ -16,7 +16,8 @@
 
 import six
 
-class Cat(Animal):
+
+class Cat(object):
     """NOTE: This class is auto generated by the swagger code generator program.
 
     Do not edit the class manually.