{"ast_node_type":"other","tokens":[{"end":74,"kind":"keyword","start":0,"text":"duplicate_entries:"}]}
    duplicate_entries: Vec<(OpaqueTypeKey<'tcx>, OpaqueHiddenType<'tcx>)>,
    opaque_types: FxIndexMap<OpaqueTypeKey<'tcx>, OpaqueHiddenType<'tcx>>,
}