export default class ArrayExtension<T> {
    [n: number]: T;
    length: Array<T>["length"];
    sort: Array<T>["sort"];
    constructor();
    /**
     * @DJSProtofy
     *
     * @returns `undefined` when array is `empty` and amount is `undefined`
     * @returns `array` when amount is `number`
     */
    random(amount?: number, allowDuplicates?: boolean): T | T[];
    /** @DJSProtofy */
    shuffle(): T[];
    /** @DJSProtofy */
    toSet(): Set<T>;
    [Symbol.iterator](): ArrayIterator<T>;
}