code: def add_interceptor(self, interceptor):
          
          return self._encode_invoke(map_add_interceptor_codec, interceptor=self._to_data(interceptor))
docs: Adds an interceptor for this map. Added interceptor will intercept operations and execute user defined methods.
  
          :param interceptor: (object), interceptor for the map which includes user defined methods.
          :return: (str),id of registered interceptor.