{"ast_node_type":"other","tokens":[{"end":77,"kind":"keyword","start":0,"text":"seq.tts.iter().fold(LockstepIterSize::Unconstrained,"}]}
            seq.tts.iter().fold(LockstepIterSize::Unconstrained, |size, tt| {
        TokenTree::Sequence(_, seq) => {
                size.with(lockstep_iter_size(tt, interpolations, repeats))