{"ast_node_type":"function","tokens":[{"end":87,"kind":"keyword","start":0,"text":"pub"}]}
    pub fn hir_get_fn_output(self, def_id: LocalDefId) -> Option<&'tcx FnRetTy<'tcx>> {
        Some(&self.opt_hir_owner_node(def_id)?.fn_decl()?.output)