{"ast_node_type":"other","tokens":[{"end":76,"kind":"keyword","start":0,"text":"search_stack.extend(iter::zip(elem_tys,"}]}
                    search_stack.extend(iter::zip(elem_tys, *elem_hir_tys));
                (&ty::Tuple(elem_tys), hir::TyKind::Tup(elem_hir_tys)) => {
                }