{"ast_node_type":"other","tokens":[{"end":65,"kind":"keyword","start":0,"text":"self.flat_map_node(AstNodeWrapper::new(node,"}]}
        self.flat_map_node(AstNodeWrapper::new(node, OptExprTag))
    fn filter_map_expr(&mut self, node: P<ast::Expr>) -> Option<P<ast::Expr>> {
    }