export declare function getAutoSizeDuration(size: number | string): number;
export declare function getElementHeight(el: React.RefObject<HTMLElement> | {
    current?: {
        scrollHeight: number;
    };
}): string | number;
export declare function getElementWidth(el: React.RefObject<HTMLElement> | {
    current?: {
        scrollWidth: number;
    };
}): string | number;