          return STATUS_CODE_TEXT.get(self.status, '')
  
  
  class ErrorResponse(BaseException):
      """An exception representing an HttpResponse that should be returned immediately."""
      def __init__(self, status, content=None, headers={}):
          self.response = Response(status, content=content, headers=headers)
 
</s> remove         """Return reason text corresponding to our HTTP response status code.
        Provided for convenience."""
 </s> add         """
        Return reason text corresponding to our HTTP response status code.
        Provided for convenience.
        """ </s> remove     """An HttpResponse that may include content that hasn't yet been serialized."""
 </s> add     """
    An HttpResponse that may include content that hasn't yet been serialized.
    """
 </s> remove __all__ =['Response', 'ErrorResponse']
 </s> add __all__ = ('Response', 'ErrorResponse') </s> remove     Mixin class to provide request parsing behaviour.
 </s> add     Mixin class to provide request parsing behavior.
    """
    An exception representing an Response that should be returned immediately.
    Any content should be serialized as-is, without being filtered.
    """

          return STATUS_CODE_TEXT.get(self.status, '')
  
  
  class ErrorResponse(BaseException):
    """
    An exception representing an Response that should be returned immediately.
    Any content should be serialized as-is, without being filtered.
    """

      def __init__(self, status, content=None, headers={}):
          self.response = Response(status, content=content, headers=headers)
keep keep keep keep replace keep keep
 More tests, getting new serialization into resource 
djangorestframework/response.py