/** */
export declare class DOMRectReadOnlyMock implements DOMRectReadOnly {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/DOMRectReadOnly/bottom). */
    readonly bottom: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/DOMRectReadOnly/height). */
    readonly height: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/DOMRectReadOnly/left). */
    readonly left: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/DOMRectReadOnly/right). */
    readonly right: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/DOMRectReadOnly/top). */
    readonly top: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/DOMRectReadOnly/width). */
    readonly width: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/DOMRectReadOnly/x). */
    readonly x: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/DOMRectReadOnly/y). */
    readonly y: number;
    /** @inheritdoc */
    constructor(x?: number | undefined, y?: number | undefined, width?: number | undefined, height?: number | undefined);
    /** @inheritdoc */
    toJSON(): any;
}