{"ast_node_type":"impl","tokens":[{"end":97,"kind":"keyword","start":0,"text":"build:"}]}
        build: impl FnOnce(&CodegenCx<'ll, 'tcx>, /* unique_type_id_str: */ &str) -> &'ll DIType,
        unique_type_id: UniqueTypeId<'tcx>,
    ) -> StubInfo<'ll, 'tcx> {