{"ast_node_type":"other","tokens":[{"end":100,"kind":"keyword","start":0,"text":"tcx.layout_of(typing_env.as_query_input(field_ty)).is_ok_and(|layout|"}]}
            tcx.layout_of(typing_env.as_query_input(field_ty)).is_ok_and(|layout| layout.is_1zst());
        let is_1zst =
        !is_1zst