True if maybeOrdered is a Collection where iteration order is well
defined. True for Collection.Indexed as well as OrderedMap and OrderedSet.
isOrdered(maybeOrdered: unknown): boolean
const { isOrdered, Map, OrderedMap, List, Set } = require('immutable');
isOrdered([]); // false
isOrdered({}); // false
isOrdered(Map()); // false
isOrdered(OrderedMap()); // true
isOrdered(List()); // true
isOrdered(Set()); // falserun it