{"ast_node_type":"other","tokens":[{"end":60,"kind":"keyword","start":0,"text":"sm.span_to_snippet(first_span.to(last_span))"}]}
                sm.span_to_snippet(first_span.to(last_span))
                let last_span = last.span.find_ancestor_inside(expr.span).unwrap_or(last.span);
            }