export interface IelementTransform {
    sx: number;
    sy: number;
    tx: number;
    ty: number;
    r?: number;
    skeyx?: number;
    skeyy?: number;
}
export interface ICSSElementTransform {
    scaleX?: number;
    scaleY?: number;
    translateX?: number;
    translateY?: number;
    rotate?: number;
    skewX?: number;
    skewY?: number;
}
export declare type transfromParams = {
    tx: number;
    ty: number;
    sx: number;
    sy: number;
    r: number;
    k: number;
};
export declare class Helpers {
    static browser_prefixes: string[];
    static printFixedNumber(x: any): string;
    static constructCssObject(elementTransform: IelementTransform): ICSSElementTransform;
    static constructEasingCss(input: Array<number>): string;
    static constructBezierArray(input: Array<number> | string | undefined): number[];
    static constructEasingFunction(input: Array<number> | string | undefined, dur: any): (t: any) => number;
    static constructZoomRootCssTransform(trans: string, duration?: number, easing?: Array<number>): {};
    static constructResetZoomRootCssTransform(): {};
    static interpolateArrays(st: any, et: any, pos: any): {};
    static roundNumber(number: any, precision: any): number;
    static matrixCompose(ia: IelementTransform): string;
    static matrixComposeCSS(ia: ICSSElementTransform): string;
    static getElementTransform: (elem: any) => any;
    static forEachPrefix: (func: any, includeNoPrefix?: boolean) => void;
    static constructTransformation(elem: any): any;
    static getElemTransform(elem: any): IelementTransform;
    static cubicBezierAtTime(t: any, p1x: any, p1y: any, p2x: any, p2y: any, duration: any): number;
}