{"ast_node_type":"other","tokens":[{"end":83,"kind":"keyword","start":0,"text":"self.expanded.value.covering_element(range).into_token().zip(Some(ctx))"}]}
            self.expanded.value.covering_element(range).into_token().zip(Some(ctx))
        let tokens = self.exp_map.ranges_with_span(span).flat_map(move |(range, ctx)| {
        });