import { Logger } from "@empiricalrun/shared-types/chat-agent";
export interface FetchedImage {
    buffer: ArrayBuffer;
    contentType: string | null;
}
/**
 * Fetch a remote image, using Cloudflare's image transform URL to downscale
 * large images on the fly. Falls back to a direct fetch if the transform
 * request fails (e.g. unsupported format, CF feature not enabled).
 *
 * Returns both the image buffer and the actual content type from the response,
 * since CF transforms may convert the format (e.g. PNG → JPEG).
 */
export declare function fetchAndDownscaleImage(sourceUrl: string, logger: Logger): Promise<FetchedImage>;
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