code: def before_app_first_request(self, func: Callable) -> Callable:
          
          self.record_once(lambda state: state.app.before_first_request(func))
          return func
docs: Add a before request first function to the app.
  
          This is designed to be used as a decorator, and has the same
          arguments as :meth:`~quart.Quart.before_first_request`. It is
          triggered before the first request to the app this blueprint
          is registered on. An example usage,
  
          .. code-block:: python
  
              blueprint = Blueprint(__name__)
              @blueprint.before_app_first_request
              def before_first():
                  ...