{"ast_node_type":"variable","tokens":[{"end":83,"kind":"keyword","start":0,"text":"let"}]}
    let function_return_attr = match cx.sess().opts.unstable_opts.function_return {
fn function_return_attr<'ll>(cx: &CodegenCx<'ll, '_>) -> Option<&'ll Attribute> {
        FunctionReturn::Keep => return None,