{"ast_node_type":"other","tokens":[{"end":92,"kind":"keyword","start":0,"text":"//"}]}
    // than (a) starting with an empty string, or (b) computing the exact capacity required.
    // This is a guess at the needed capacity that works well in practice. It is slightly faster
    // `8` works well because it's about the right size and jemalloc's size classes are all