code: def load_services(self, services=settings.TH_SERVICES):
          
          kwargs = {}
          for class_path in services:
              module_name, class_name = class_path.rsplit('.', 1)
              klass = import_from_path(class_path)
              service = klass(None, **kwargs)
              self.register(class_name, service)
docs: get the service from the settings