import { EasingType } from "../types";
/**
* The dot product of a1 and a2 for the b1 and b2.
* @memberof Dot
* @function dot
* @param {String|Number|PropertyObject} a1 value1
* @param {String|Number|PropertyObject} a2 value2
* @param {Number} b1 b1 ratio
* @param {Number} b2 b2 ratio
* @return {String} Not Array, Not Separator, Only Number & Unit
* @return {PropertyObject} Array with Separator.
* @example
dot(1, 3, 0.3, 0.7);
// => 1.6
*/
export declare function dot(a1: any, a2: any, b1: number, b2: number): any;
export declare function dotValue(time: number, prevTime: number, nextTime: number, prevValue: any, nextValue: any, easing?: EasingType): any;