{"ast_node_type":"impl","tokens":[{"end":86,"kind":"keyword","start":0,"text":"members:"}]}
    members: impl FnOnce(&CodegenCx<'ll, 'tcx>, &'ll DIType) -> SmallVec<&'ll DIType>,
    stub_info: StubInfo<'ll, 'tcx>,
    generics: impl FnOnce(&CodegenCx<'ll, 'tcx>) -> SmallVec<Option<&'ll DIType>>,