{"ast_node_type":"other","tokens":[{"end":77,"kind":"keyword","start":0,"text":"Self::RealSpanMap(span_map)"}]}
            Self::RealSpanMap(span_map) => SpanMapRef::RealSpanMap(span_map),
            Self::ExpansionSpanMap(span_map) => SpanMapRef::ExpansionSpanMap(span_map),
        }