docs: def contribute_to_class(self, cls, name):
          '''
          Sets up the signal processor. Since self.model is not available
          in the constructor, we perform this operation here.
          '''
          super(BungiesearchManager, self).contribute_to_class(cls, name)
  
          from . import Bungiesearch
          from .signals import get_signal_processor
          settings = Bungiesearch.BUNGIE
          if 'SIGNALS' in settings:
              self.signal_processor = get_signal_processor()
              self.signal_processor.setup(self.model)