pub fn fold_cluster_alter_option<F, T: AstInfo, T2: AstInfo>(
folder: &mut F,
node: ClusterAlterOption<T>,
) -> ClusterAlterOption<T2>
pub fn fold_cluster_alter_option<F, T: AstInfo, T2: AstInfo>(
folder: &mut F,
node: ClusterAlterOption<T>,
) -> ClusterAlterOption<T2>