{"ast_node_type":"other","tokens":[{"end":65,"kind":"keyword","start":0,"text":"//"}]}
                    // to get the unpadded size so we try anyway.
                    // field (e.g. a trailing bool) and there is tail padding. But it's non-trivial
                    if fields.len() > 1 && head_space != 0 && tail_space > 0 {