{"ast_node_type":"variable","tokens":[{"end":93,"kind":"keyword","start":0,"text":"let"}]}
        let found = self.mapping.binary_search_by(|(probe, ..)| probe.ordering(range)).ok()?;
    pub fn map(&self, range: TextRange) -> Option<(InFile<TextRange>, AttrId)> {
        let (line_docs_range, idx, original_line_src_range) = self.mapping[found];