import { Easing } from './../easing';
import { DeepPartial } from '../deep-partial';
export declare function tweening<T>(target: T, end: DeepPartial<T>, easing: Easing): Tweening<T>;
export type Tweening<T> = (progress: number) => T;
export declare function tweenInternal<T>(start: T, end: DeepPartial<T>, progress: number, easingFunction: Easing, writeTo: T): T;