new_contents: # coding: utf-8
  
  """
  Copyright 2015 SmartBear Software
  
      Licensed under the Apache License, Version 2.0 (the "License");
      you may not use this file except in compliance with the License.
      You may obtain a copy of the License at
  
          http://www.apache.org/licenses/LICENSE-2.0
  
      Unless required by applicable law or agreed to in writing, software
      distributed under the License is distributed on an "AS IS" BASIS,
      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
      See the License for the specific language governing permissions and
      limitations under the License.
  
      Ref: https://github.com/swagger-api/swagger-codegen
  """
  
  from datetime import datetime
  from pprint import pformat
  from six import iteritems
  
  
  class FieldHandler(object):
      """
      NOTE: This class is auto generated by the swagger code generator program.
      Do not edit the class manually.
      """
      def __init__(self):
          """
          FieldHandler - a model defined in Swagger
  
          :param dict swaggerTypes: The key is attribute name
                                    and the value is attribute type.
          :param dict attributeMap: The key is attribute name
                                    and the value is json key in definition.
          """
          self.swagger_types = {
              
          }
  
          self.attribute_map = {
              
          }
  
  
      def to_dict(self):
          """
          Returns the model properties as a dict
          """
          result = {}
  
          for attr, _ in iteritems(self.swagger_types):
              value = getattr(self, attr)
              if isinstance(value, list):
                  result[attr] = list(map(
                      lambda x: x.to_dict() if hasattr(x, "to_dict") else x,
                      value
                  ))
              elif hasattr(value, "to_dict"):
                  result[attr] = value.to_dict()
  	    elif isinstance(value, datetime):
  		result[attr] = str(value.date())
              else:
                  result[attr] = value
  
          return result
  
      def to_str(self):
          """
          Returns the string representation of the model
          """
          return pformat(self.to_dict())
  
      def __repr__(self):
          """
          For `print` and `pprint`
          """
          return self.to_str()
  
subject: make sure to include the field_handler