{"ast_node_type":"other","tokens":[{"end":69,"kind":"keyword","start":0,"text":"PlaceElem::Field(Either::Right(TupleFieldId"}]}
                        PlaceElem::Field(Either::Right(TupleFieldId {
                    (0..subst.len(Interner)).map(|i| {
                            tuple: TupleId(!0), // Dummy as it is unused