{"ast_node_type":"other","tokens":[{"end":20,"kind":"keyword","start":0,"text":"type"}]}
type FinalizeFn<S> =
    Box<dyn for<'sess, 'a> Fn(&mut AcceptContext<'_, 'sess, S>, &ArgParser<'a>) + Send + Sync>;
    Box<dyn Send + Sync + Fn(&mut FinalizeContext<'_, '_, S>) -> Option<AttributeKind>>;