code: function(occupantsIds, UserId) {
          var recipient = null;
          occupantsIds.forEach(function(item) {
              if(item != UserId){
                  recipient = item;
              }
          });
          return recipient;
      }
docs: Get the recipint id.
  @memberof QB.chat.helpers
  @param {Array} occupantsIds - Array of user ids.
  @param {Number} UserId - Jid or user id.
  @returns {Number} recipient - recipient id.