code: def send_message(self, channel, text, thread=None, reply_broadcast=None):
          
          # This doesn't want the # in the channel name
          if isinstance(channel, SlackRoomIMBase):
              channel = channel.id
          self.log.debug("Trying to send to %s: %s", channel, text)
          self.sc.rtm_send_message(channel, text, thread=thread, reply_broadcast=reply_broadcast)
docs: Sends a message to the specified channel
  
          * channel - The channel to send to.  This can be a SlackChannel object, a channel id, or a channel name
          (without the #)
          * text - String to send
          * thread - reply to the thread. See https://api.slack.com/docs/message-threading#threads_party
          * reply_broadcast - Set to true to indicate your reply is germane to all members of a channel