{"ast_node_type":"other","tokens":[{"end":33,"kind":"keyword","start":0,"text":"trace!(?start,"}]}
            trace!(?start, ?end);
        let largest_niche = discriminants.max_by_key(|&(start, end)| {
            // If this is a wraparound range, the niche size is `MAX - abs(diff)`, as the diff between