{"ast_node_type":"other","tokens":[{"end":87,"kind":"keyword","start":0,"text":"Self::ExpansionSpanMap(span_map)"}]}
            Self::ExpansionSpanMap(span_map) => SpanMapRef::ExpansionSpanMap(span_map),
        match self {
            Self::RealSpanMap(span_map) => SpanMapRef::RealSpanMap(span_map),