code: function addInboundMessageToConvo(inboundMessage) {
      if (_.last(convo.inboundMessages) !== inboundMessage) {
        fuse.logger.debug(`Add ${inboundMessage.id} to transcript`);
        convo.inboundMessages.push(inboundMessage);
        convo.transcript.push(inboundMessage);
      }
    }
docs: adds new received messages to the transcript and inboundMessages list
  
  @param {InboundMessage} inboundMessage