/**
 * Deploys a VTEX CMS extension by preparing and uploading the necessary files.
 *
 * @param extension - The name of the extension to deploy, or `undefined` to deploy all extensions.
 * @param options - Deployment options.
 * @param options.y - Optional flag to auto-confirm prompts.
 * @param options.yes - Flag to auto-confirm prompts.
 * @param site - The VTEX CMS site identifier. Defaults to `VTEX_CMS_DEFAULT_SITE`.
 * @returns A promise that resolves when the deployment process is complete.
 */
export declare const deploy: (extension: string | undefined, options: {
    y?: boolean;
    yes: boolean;
}, site?: string) => Promise<void>;