{"ast_node_type":"other","tokens":[{"end":76,"kind":"keyword","start":0,"text":"CfgExpr::Not(Box::new(CfgAtom::Flag(Symbol::intern(\"foo\")).into())),"}]}
        CfgExpr::Not(Box::new(CfgAtom::Flag(Symbol::intern("foo")).into())),
        "#![cfg(not(foo))]",
    );