(self)
return self.__connection_id
The address (host, port) of the server this heartbeat was sent
        to.
The address (host, port) of the server this heartbeat was sent
        to.
The address ( host port ) of the server this heartbeat was sent to .
def connection_id(self):
        """The address (host, port) of the server this heartbeat was sent
        to."""
        return self.__connection_id
def connection_id ( self ) : return self . __connection_id