{"ast_node_type":"other","tokens":[{"end":75,"kind":"keyword","start":0,"text":"//"}]}
        // FIXME requires db to resolve the ast id, THIS IS NOT INCREMENTAL
    fn byte_range(&mut self, span: Self::Span) -> Range<usize> {
        Range { start: span.range.start().into(), end: span.range.end().into() }