{"ast_node_type":"variable","tokens":[{"end":99,"kind":"keyword","start":0,"text":"let"}]}
                        let pipe_tok = c.param_list().and_then(|it| it.pipe_token())?.text_range();
                    ast::ClosureExpr(c) => {
                        let closure_in_file = InFile::new(file_id, c.into());