declare type easingFunc = (percent: number) => number;
export declare type AnimationEasing = keyof typeof easing | easingFunc | 'spline';
declare const easing: {
    linear(k: number): number;
    quadraticIn(k: number): number;
    quadraticOut(k: number): number;
    quadraticInOut(k: number): number;
    cubicIn(k: number): number;
    cubicOut(k: number): number;
    cubicInOut(k: number): number;
    quarticIn(k: number): number;
    quarticOut(k: number): number;
    quarticInOut(k: number): number;
    quinticIn(k: number): number;
    quinticOut(k: number): number;
    quinticInOut(k: number): number;
    sinusoidalIn(k: number): number;
    sinusoidalOut(k: number): number;
    sinusoidalInOut(k: number): number;
    exponentialIn(k: number): number;
    exponentialOut(k: number): number;
    exponentialInOut(k: number): number;
    circularIn(k: number): number;
    circularOut(k: number): number;
    circularInOut(k: number): number;
    elasticIn(k: number): number;
    elasticOut(k: number): number;
    elasticInOut(k: number): number;
    backIn(k: number): number;
    backOut(k: number): number;
    backInOut(k: number): number;
    bounceIn(k: number): number;
    bounceOut(k: number): number;
    bounceInOut(k: number): number;
};
export default easing;