/**
 * Resize an image (provided as a buffer) and upload it to S3.
 * @param {Buffer} fileBuffer - Image file as a buffer.
 * @param {number} width - Desired width.
 * @param {number} height - Desired height.
 * @param {string} outputKey - S3 object key (filename).
 * @returns {Promise<string>} - Returns the CloudFront URL of the uploaded file.
 */
export declare function resizeAndUpload(fileBuffer: Buffer, width: number, height: number, outputKey: string): Promise<{
    url: string;
    message: string;
}>;