{"ast_node_type":"other","tokens":[{"end":43,"kind":"keyword","start":0,"text":"DefKind::Fn"}]}
        DefKind::Fn | DefKind::AssocFn => {
    let bound_vars = match tcx.def_kind(mir_def_id) {
            tcx.late_bound_vars(tcx.local_def_id_to_hir_id(mir_def_id))