import { LoadingState } from '../../types';
export declare function getLoadingStateMap(length: number): Map<number, LoadingState>;
/**
 * @param size The length of images to load. It is greater than 0.
 * @param stateMap The map of each image loading state({ 0: 'success', 1: 'loading', ... }).
 *  The size of it equals to size.
 * @param value The count of loaded images. It is greater than 1.
 * @returns The map of each image loading state.
 */
export declare function updateLoadedStates({ size, stateMap, value, }: {
    size: number;
    stateMap: Map<number, LoadingState>;
    value: number;
}): Map<number, LoadingState>;