FastAPIConfig faststream.broker.fastapi.config.FastAPIConfig dataclass # FastAPIConfig( dependency_overrides_provider, application=None ) dependency_overrides_provider instance-attribute # dependency_overrides_provider application class-attribute instance-attribute # application = None set_application # set_application(app) Source code in faststream/broker/fastapi/config.py 13 14 15def set_application(self, app: "FastAPI") -> None: self.application = app self.dependency_overrides_provider = self.dependency_overrides_provider or app