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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def send_error(self, error):
 """Convenience method for writing Error frames up the wire. :param error: TChannel Error. :py:class`tchannel.errors.TChannelError`. :returns: A future that resolves when the write finishes. """


        error_message = build_raw_error_message(error)
        write_future = self.writer.put(error_message)
        write_future.add_done_callback(
            lambda f: IOLoop.current().add_callback(
                self.tchannel.event_emitter.fire(
                    EventType.after_send_error,
                    error,
                )
            )
        )
        return write_future