collect

In std/collections.

fn collect<T>(self: Collection<T>, n: Int) : List<List<T>>
fn collect<T>(self: Stream<T>, n: Int) : Stream<List<T>>

Consecutive elements in batches of n, in order; the last batch may be shorter: [1, 2, 3, 4, 5] | collect(2) is [[1, 2], [3, 4], [5]]. n is at least 1. xs | collect(n) | emit is xs.