code: def load_scheduler_plugins(self):
          
          if not self.scheduler_plugins:
              for entry_point in CINQ_PLUGINS['cloud_inquisitor.plugins.schedulers']['plugins']:
                  cls = entry_point.load()
                  self.scheduler_plugins[cls.__name__] = cls
                  if cls.__name__ == self.active_scheduler:
                      self.log.debug('Scheduler loaded: {} in module {}'.format(cls.__name__, cls.__module__))
                  else:
                      self.log.debug('Scheduler disabled: {} in module {}'.format(cls.__name__, cls.__module__))
docs: Refresh the list of available schedulers
  
          Returns:
              `list` of :obj:`BaseScheduler`