foldNamedToData

inline fun <T : Any, R : Any> Iterable<NamedData<T>>.foldNamedToData(initial: R, coroutineContext: CoroutineContext = EmptyCoroutineContext, meta: Meta = Meta.EMPTY, crossinline block: suspend (result: R, data: NamedValueWithMeta<T>) -> R): Data<R>

Fold a Iterable of named data into a single Data