{"ast_node_type":"other","tokens":[{"end":50,"kind":"keyword","start":0,"text":".filter_map(|offset|"}]}
        .filter_map(|offset| text.char_at(offset))
    let has_newline = iter::successors(Some(offset), |&offset| Some(offset + TextSize::new(1)))
        .find(|&c| !c.is_whitespace() || c == '\n')