/**
 * Defines a custom animation timing curve by using the cubic-bezier function.
 * Possible values are numeric values from 0 to 1
 */
export declare class CubicBezierAnimationCurve {
    x1: number;
    y1: number;
    x2: number;
    y2: number;
    constructor(x1: number, y1: number, x2: number, y2: number);
}