def send_packet(self, packet, protocol='json', time_precision=None):
        """Send an UDP packet.

        :param packet: the packet to be sent
        :type packet: (if protocol is 'json') dict
                      (if protocol is 'line') list of line protocol strings
        :param protocol: protocol of input data, either 'json' or 'line'
        :type protocol: str
        :param time_precision: Either 's', 'm', 'ms' or 'u', defaults to None
        :type time_precision: str
        """
        if protocol == 'json':
            data = make_lines(packet, time_precision).encode('utf-8')
        elif protocol == 'line':
            data = ('\n'.join(packet) + '\n').encode('utf-8')
        self.udp_socket.sendto(data, (self._host, self._udp_port))
Send an UDP packet.

        :param packet: the packet to be sent
        :type packet: (if protocol is 'json') dict
                      (if protocol is 'line') list of line protocol strings
        :param protocol: protocol of input data, either 'json' or 'line'
        :type protocol: str
        :param time_precision: Either 's', 'm', 'ms' or 'u', defaults to None
        :type time_precision: str