/**
 * ease function
 * @param x absolute progress of the animation in bounds 0 (beginning) and 1 (end)
 */
export declare function easeInOutSine(x: number): number;
/**
 * JS-реализация cubic bezier
 *
 * Алгебраический метод решения взят из PRа {@link https://github.com/gre/bezier-easing/pull/57}
 */
export declare function cubicBezier(mX1: number, mY1: number, mX2: number, mY2: number): typeof LinearEasing;
declare function LinearEasing(x: number): number;
export {};
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