{"ast_node_type":"other","tokens":[{"end":68,"kind":"keyword","start":0,"text":"match"}]}
    match tcx.hir_node_by_def_id(def_id).expect_opaque_ty().origin {
fn opaque_ty_origin<'tcx>(tcx: TyCtxt<'tcx>, def_id: LocalDefId) -> hir::OpaqueTyOrigin<DefId> {
        hir::OpaqueTyOrigin::FnReturn { parent, in_trait_or_impl } => {