text: from django.contrib.auth import get_user_model
  
  
  class DefaultHookSet(object):
  
      def get_user_choices(self, user):
          return get_user_model().objects.all()
  
  
  class HookProxy(object):
      _settings = None
  
      def load_settings(self):
          if self._settings is None:
              from .conf import settings
              self._settings = settings
  
      def __getattr__(self, attr):
          self.load_settings()
          return getattr(self._settings.PINAX_MESSAGES_HOOKSET, attr)
  
  
  hookset = HookProxy()
  