{"ast_node_type":"other","tokens":[{"end":87,"kind":"keyword","start":0,"text":"Some(sym::NonNull)"}]}
                            Some(sym::NonNull) => Some(InvalidReceiverTyHint::NonNull),
                            Some(sym::RcWeak | sym::ArcWeak) => Some(InvalidReceiverTyHint::Weak),
                            _ => None,