Method get_extra_data

flow-rs/src/loader/python/envelope.rs:76–84

(&self)

    #[getter(extra_data)]
    fn get_extra_data(&self) -> Option<PyObject> {
        let envelope = self.imp.as_ref().expect(ERR_MSG);
        envelope
            .info()
            .extra_data
            .as_ref()
            .map(|x| x.downcast_ref().cloned())
            .flatten()
    }

    #[getter(msg)]
    fn get_msg(&self, py: Python) -> PyObject {