import { type UmbImagingResizeModel } from './types.js';
interface BatchedItem {
    unique: string;
    url?: string;
}
type FetchFn = (uniques: Array<string>, model?: UmbImagingResizeModel) => Promise<{
    data?: Array<BatchedItem>;
    error?: unknown;
}>;
/**
 * Batches individual imaging resize requests together.
 * Multiple calls within the same event loop turn are collected and sent as a single API request,
 * grouped by resize model configuration (width/height/mode/format).
 * @param {string} unique - The media item unique identifier
 * @param {UmbImagingResizeModel | undefined} imagingModel - The resize configuration
 * @param {FetchFn} fetchFn - The function to call with batched uniques
 * @returns {Promise<string | undefined>} A promise resolving to the URL for this specific unique, or undefined if not found
 */
export declare function batchImagingRequest(unique: string, imagingModel: UmbImagingResizeModel | undefined, fetchFn: FetchFn): Promise<string | undefined>;
/**
 * Clears all cached imaging URLs for the given unique identifier.
 * Call this when a media item is saved or deleted to ensure fresh URLs are fetched.
 * @param {string} unique - The media item unique identifier to clear from cache
 */
export declare function clearImagingCache(unique: string): void;
/**
 * Clears the entire imaging URL cache.
 * @internal
 */
export declare function clearAllImagingCache(): void;
export {};