parameters: (self)
docstring: Returns a string that identifies this patch. Typically it would be the
      codereview server's ID for this patch.
docstring_summary: Returns a string that identifies this patch. Typically it would be the
      codereview server's ID for this patch.
docstring_tokens: Returns a string that identifies this patch . Typically it would be the codereview server s ID for this patch .
function: def GetIdentity(self):
      '''Returns a string that identifies this patch. Typically it would be the
      codereview server's ID for this patch.
      '''
      raise NotImplementedError(self.__class__)
function_tokens: def GetIdentity ( self ) : raise NotImplementedError ( self . __class__ )