fn ensure_no_forbidden_protocol_attributes(
proto_kind: &PyMethodProtoKind,
spec: &FnSpec<'_>,
method_name: &str
) -> Result<()>
fn ensure_no_forbidden_protocol_attributes(
proto_kind: &PyMethodProtoKind,
spec: &FnSpec<'_>,
method_name: &str
) -> Result<()>