declare function arrayFromPolyfill(source: any, mapFn?: any, thisArg?: any): any;
declare const arrayFrom: {
    <T>(arrayLike: ArrayLike<T>): T[];
    <T, U>(arrayLike: ArrayLike<T>, mapfn: (v: T, k: number) => U, thisArg?: any): U[];
    <T>(iterable: Iterable<T> | ArrayLike<T>): T[];
    <T, U>(iterable: Iterable<T> | ArrayLike<T>, mapfn: (v: T, k: number) => U, thisArg?: any): U[];
} | typeof arrayFromPolyfill;
export { arrayFrom as default, arrayFromPolyfill, };