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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(self, event):
 # type(Event) -> bytes """Send an event to the remote. This will return the bytes to send based on the event or raise a LocalProtocolError if the event is not valid given the state. """

        data = b""
        if isinstance(event, Request):
            data += self._initiate_connection(event)
        elif isinstance(event, AcceptConnection):
            data += self._accept(event)
        elif isinstance(event, RejectConnection):
            data += self._reject(event)
        elif isinstance(event, RejectData):
            data += self._send_reject_data(event)
        else:
            raise LocalProtocolError(
                "Event {} cannot be sent during the handshake".format(event)
            )
        return data