export type InterpolationFunction = (v: number[], k: number) => number;
/**
 * Interpolation functions for tweening through arrays of values.
 * Used when a tween target property is an array (e.g. a path of waypoints).
 *
 * Available functions:
 * - `Linear` — straight-line interpolation between consecutive values
 * - `Bezier` — smooth Bezier curve through all values
 * - `CatmullRom` — smooth Catmull-Rom spline through all values (best for paths)
 * @example
 * // tween through waypoints using CatmullRom spline
 * new me.Tween(obj).to({ x: [100, 200, 300, 400] }, {
 *     duration: 2000,
 *     interpolation: me.Tween.Interpolation.CatmullRom,
 * }).start();
 * @see {@link Tween}
 * @category Tweens
 */
export declare const Interpolation: {
    /**
     * Piecewise linear interpolation between consecutive array values.
     * @param v - array of values
     * @param k - interpolation factor (0 to 1)
     */
    Linear: (v: number[], k: number) => number;
    /**
     * Smooth Bezier curve interpolation through all array values.
     * @param v - array of values
     * @param k - interpolation factor (0 to 1)
     */
    Bezier: (v: number[], k: number) => number;
    /**
     * Smooth Catmull-Rom spline interpolation — best for path-following tweens.
     * @param v - array of values
     * @param k - interpolation factor (0 to 1)
     */
    CatmullRom: (v: number[], k: number) => number;
};
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