{"ast_node_type":"other","tokens":[{"end":81,"kind":"keyword","start":0,"text":"caller:"}]}
                    caller: with_no_trimmed_paths!(tcx.def_path_str(caller_def)),
                    span: tcx.def_span(caller_def),
                    callee: with_no_trimmed_paths!(tcx.def_path_str(instance.def_id())),