code: func (conn *Conn) Kick(channel, nick string, message ...string) {
  	msg := strings.Join(message, " ")
  	if msg != "" {
  		msg = " :" + msg
  	}
  	conn.Raw(KICK + " " + channel + " " + nick + msg)
  }
docs: // Kick sends a KICK command to remove a nick from a channel.
  //     KICK channel nick [:message]