{"ast_node_type":"other","tokens":[{"end":29,"kind":"keyword","start":0,"text":"match"}]}
                match *self {
            pub fn expander(&self) -> fn(&dyn ExpandDatabase, Span, &tt::TopSubtree) -> ExpandResult<tt::TopSubtree>  {
                    $( BuiltinDeriveExpander::$trait => $expand, )*