docs: def GroupsUsersPost(self, parameters, group_id):
          """
              Add users to a group in CommonSense.
              
              @param parameters (dictonary) - Dictionary containing the users to add.
                                      
              @return (bool) - Boolean indicating whether GroupsPost was successful.
          """
          if self.__SenseApiCall__('/groups/{group_id}/users.json'.format(group_id = group_id), 'POST', parameters = parameters):
              return True
          else:
              self.__error__ = "api call unsuccessful"
              return False