/**
 * Based on:
 * https://stackoverflow.com/questions/7348009/y-coordinate-for-a-given-x-cubic-bezier
 * https://math.stackexchange.com/questions/26846/is-there-an-explicit-form-for-cubic-b%C3%A9zier-curves
 * TODO: Reduce rounding error
 */
export declare class Point {
    x: number;
    y: number;
    constructor(x: number, y: number);
}
/**
 * Given a cubic-bezier curve, get the x value (time) given
 * the y value (progression).
 * Ex: cubic-bezier(0.32, 0.72, 0, 1);
 * P0: (0, 0)
 * P1: (0.32, 0.72)
 * P2: (0, 1)
 * P3: (1, 1)
 */
export declare const getTimeGivenProgression: (p0: Point, p1: Point, p2: Point, p3: Point, progression: number) => number;