    "Sort the given elements according to their
     [[natural order|Comparable]], returning a new
     [[sequence|Sequential]].

     Note that [[Iterable.sort]] may be used to sort any stream
     according to a given comparator function."
    see (`interface Comparable`,
         `function Iterable.sort`)
    shared Element[] sort<Element>({Element*} elements)
            given Element satisfies Comparable<Element> {
        value array = Array(elements);
        if (array.empty) {
            return [];
        }
        else {
            array.sortInPlace(byIncreasing(identity<Element>));
            return ArraySequence(array);
        }
    }