TestApp faststream.TestApp # TestApp(app, run_extra_options=None) A class to represent a test application. Source code in faststream/_internal/testing/app.py 22 23 24 25 26 27 28def __init__( self, app: "Application", run_extra_options: dict[str, "SettingField"] | None = None, ) -> None: self.app = app self._extra_options = run_extra_options or {} app instance-attribute # app = app