{"ast_node_type":"variable","tokens":[{"end":46,"kind":"keyword","start":0,"text":"let"}]}
        let HirId { owner, local_id } = *self;
    fn to_fingerprint(&self, tcx: TyCtxt<'tcx>) -> Fingerprint {
        let def_path_hash = tcx.def_path_hash(owner.to_def_id());