import { ImagesConfig } from './types';
export type ResizingProperties = {
    isRelative: boolean;
    imageUrl: URL;
    options: {
        width: number;
        quality: number;
        format: string | undefined;
    };
};
/**
 * Derives the properties to use for image resizing from the incoming request, respecting the
 * images configuration spec from the  build output config.
 *
 * https://vercel.com/docs/build-output-api/v3/configuration#images
 *
 * @param request Incoming request.
 * @param config Images configuration from the build output.
 * @returns Resizing properties if the request is valid, otherwise undefined.
 */
export declare const getResizingProperties: (request: Request, config?: ImagesConfig) => ResizingProperties | undefined;
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