{"ast_node_type":"other","tokens":[{"end":82,"kind":"keyword","start":0,"text":"Self::TyParam(def_id,"}]}
            Self::TyParam(def_id, _) => tcx.hir_ty_param_name(def_id).to_string(),
            Self::Trait(def_id) => tcx.def_path_str(def_id),
            Self::SelfTyAlias => kw::SelfUpper.to_string(),