docs: def _modify_transfer(self, option, value=0):
          ''' call Apsera sdk modify an in progress eg pause/resume
              allowed values defined in enumAsperaModifyTransfer class '''
          _ret = False
          try:
              if self.is_running(True):
                  logger.info("ModifyTransfer called %d = %d" % (option, value))
                  _ret = faspmanager2.modifyTransfer(self.get_transfer_id(), option, value)
                  logger.info("ModifyTransfer returned %s" % _ret)
          except Exception as ex:
              self.notify_exception(ex)
  
          return _ret