{"ast_node_type":"variable","tokens":[{"end":30,"kind":"keyword","start":0,"text":"let"}]}
        let len = self.0 >> 3;
        let all_1s_len = (0xffu8 << 3) >> 3;
        if len != all_1s_len { Some(rustc_span::BytePos(u32::from(len))) } else { None }