code: function sendToRoomId(content, roomId) {
      if (!Array.isArray(content)) {
          return sendMessage(prepareMessage(content, roomId));
      }
      else {
          return Promise.all(content.map((text) => {
              return sendMessage(prepareMessage(text, roomId));
          }));
      }
  }
docs: Prepare and send string/s to specified room ID.
  @param content Accepts message text string or array of strings.
  @param roomId  ID of the target room to use in send.
  @todo Returning one or many gets complicated with type checking not allowing
  use of a property because result may be array, when you know it's not.
  Solution would probably be to always return an array, even for single
  send. This would be a breaking change, should hold until major version.