/**
 * A mock implementation of DOMRect for testing purposes
 */
export declare class MockDOMRect implements DOMRect {
    readonly bottom: number;
    readonly height: number;
    readonly left: number;
    readonly right: number;
    readonly top: number;
    readonly width: number;
    readonly x: number;
    readonly y: number;
    toJSON(): any;
    constructor(width: number, height: number, x?: number, y?: number);
}