The Iterable mixin provides convenince methods to collection classes
that provide an #each method that returns an Iterator over the collection.
Same as each.cycle.
Same as each.cycle(n).
Must return an Iterator over the elements in this collection.
Same as each.cons(count).
Same as each.slice(count).
Same as each.with_index(offset).
Same as each.with_object(obj).
Same as each.cycle.
Same as each.cycle(n).
Must return an Iterator over the elements in this collection.
Same as each.cons(count).
Same as each.slice(count).
Same as each.with_index(offset).
Same as each.with_object(obj).