interface Array<T> {
    /**
     * Returns an object whose properties have the value 'true'
     * when they will be absent when used in a 'with' statement.
     */
    [Symbol.unscopables](): {
        copyWithin: boolean;
        entries: boolean;
        fill: boolean;
        find: boolean;
        findIndex: boolean;
        keys: boolean;
        values: boolean;
    };
}