/// <reference types="react" />
import type { CnOSSImageUploadProps } from '../types';
export declare const useItemStyle: (props: CnOSSImageUploadProps) => {
    containerRef: import("react").MutableRefObject<HTMLDivElement>;
    itemStyle?: undefined;
} | {
    containerRef: import("react").MutableRefObject<HTMLDivElement>;
    itemStyle: {
        width: number;
        height: number;
    };
};