{"ast_node_type":"variable","tokens":[{"end":62,"kind":"keyword","start":0,"text":"let"}]}
                let variant_id = self.tcx.parent(ctor_def_id);
            Res::Def(DefKind::Ctor(CtorOf::Variant, ..), ctor_def_id) => {
                let enum_id = self.tcx.parent(variant_id);