{"ast_node_type":"other","tokens":[{"end":52,"kind":"keyword","start":0,"text":".filter_map(|(_,"}]}
                .filter_map(|(_, node)| match node {
                .hir_parent_iter(expr.hir_id)
                    hir::Node::Expr(hir::Expr { span, kind: hir::ExprKind::Loop(..), .. }) => {