old_contents: import json
  
  from flask import Response as SimpleResponse
  
  from .status_codes import HTTP_200_OK
  from .serializers import BaseSerializer
  
  
  class Response(SimpleResponse):
  
      def __init__(self, data, headers=None, status_code=HTTP_200_OK):
          """
          For now the content/type always will be application/json.
          We can change it to make a Web Browseable API
          """
          if isinstance(data, BaseSerializer):
              msg = (
                  'You passed a Serializer instance as data, but '
                  'probably meant to pass serialized `.data` or '
                  '`.errors`. representation.'
              )
              raise AssertionError(msg)
  
          data = json.dumps(data)
  
          content_type = "application/json"
  
          super(Response, self).__init__(
              data, headers=None, content_type=content_type, status=status_code
          )
  
new_contents: from flask import Response as SimpleResponse
  from flask import json
  
  from .status_codes import HTTP_200_OK
  from .serializers import BaseSerializer
  
  
  class Response(SimpleResponse):
  
      def __init__(self, data, headers=None, status_code=HTTP_200_OK):
          """
          For now the content/type always will be application/json.
          We can change it to make a Web Browseable API
          """
          if isinstance(data, BaseSerializer):
              msg = (
                  'You passed a Serializer instance as data, but '
                  'probably meant to pass serialized `.data` or '
                  '`.errors`. representation.'
              )
              raise AssertionError(msg)
  
          data = json.dumps(data)
  
          content_type = "application/json"
  
          super(Response, self).__init__(
              data, headers=None, content_type=content_type, status=status_code
          )
  
subject: Replace json for flask.json to manage the Response