code: def register_receivers(app, config):
      
      for event_name, event_config in config.items():
          event_builders = [
              obj_or_import_string(func)
              for func in event_config.get('event_builders', [])
          ]
  
          signal = obj_or_import_string(event_config['signal'])
          signal.connect(
              EventEmmiter(event_name, event_builders), sender=app, weak=False
          )
docs: Register signal receivers which send events.