Pull Sources
Pull sources are just iterables.
range#
range(start, end, step = 1) => Iterable
Creates an iterable of numbers from the start to (not including) the end by the step (optional, only positive because the sign will be chosen depending on whether the start is or isn't less than the end).
[...range(2, 5)]; // [2, 3, 4][...range(2, 5, 2)]; // [2, 4][...range(5, 2)]; // [5, 4, 3]