{"ast_node_type":"other","tokens":[{"end":35,"kind":"keyword","start":0,"text":"is_source_literal.then(||"}]}
        is_source_literal.then(|| {
    let to_span = |inner_span: Range<usize>| {
            fmt_span.from_inner(InnerSpan { start: inner_span.start, end: inner_span.end })