What about adding: ```fun <T, R> Pair<Ite...

# stdlib

[CLOVIS]

What about adding:

fun <T, R> Pair<Iterable<T>, Iterable<T>>.mapEach(transform: (T) -> R): Pair<Iterable<R>, Iterable<R>> {
    val (left, right) = this
    return left.map(transform) to right.map(transform)
}

The use-case would be mapping after a call to .partition :

…
    .partition { it.isSuccessful }
    .mapEach { it.id }

I find that it's something I do relatively often

[CLOVIS]

first and second , but yeah that's the same function

[CLOVIS]

Not really, I just did the deconstruction by habit

[CLOVIS]

well, the point isn't the exact way to implement this function, but to discuss whether it should exist