/**
 * Sharp implementation of the dependency-free ImageOptimizationEngine.
 *
 * @module extensions/ext-image-sharp
 */
import "../_dnt.polyfills.js";
import type { ExtensionFactory } from "veryfront/extensions";
import { type ImageOptimizationEngine, type ImageOptimizationRequest, type ImageOptimizationResult } from "veryfront/extensions/image";
/** Native image decoder, resizer, and encoder supplied by this extension. */
export declare class SharpImageOptimizationEngine implements ImageOptimizationEngine {
    #private;
    readonly cacheIdentity: string;
    constructor();
    optimize(request: ImageOptimizationRequest): Promise<ImageOptimizationResult>;
}
declare const factory: ExtensionFactory;
export default factory;
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