{"ast_node_type":"other","tokens":[{"end":57,"kind":"keyword","start":0,"text":"ts.push(TokenTree::Token(t,"}]}
            ts.push(TokenTree::Token(t, Spacing::Joint));
            let t = Token::new(TokenKind::Ident(sym::None, false.into()), Span::default());
            ts.push(TokenTree::Token(comma, Spacing::Alone));