export declare class Matrix {
    constructor(a?: number, b?: number, c?: number, d?: number, e?: number, f?: number);
    a: number;
    b: number;
    c: number;
    d: number;
    e: number;
    f: number;
    translate(x: number, y: number): Matrix;
    rotate(corner: number): Matrix;
    scale(xscale: number, yscale?: number | null): Matrix;
    skewX(corner: number): Matrix;
    skewY(corner: number): Matrix;
    multiply(m: Matrix): Matrix;
}