type GetDOMRect = (element: HTMLElement) => DOMRectReadOnly | undefined | void;
export declare function disableResizeObserverForCurrentTest(): void;
export declare function setDefaultElementSize({ height, width, }: {
    height: number;
    width: number;
}): void;
export declare function setElementSizeFunction(value: GetDOMRect): void;
export declare function setElementSize({ element, height, width, }: {
    element: HTMLElement;
    height: number;
    width: number;
}): void;
export declare function simulateUnsupportedEnvironmentForTest(): void;
export declare function mockResizeObserver(): () => void;
export {};