export interface PackageOptions {
    /**
     * Output filename.
     */
    readonly outFile?: string;
}
export declare function pack(options?: PackageOptions): Promise<string>;
/**
 * Check if a file exists at a specific path with the given permissions
 * @param filePath The path to the file
 * @param permissions The permissions to check for. Defaults to checking for existence, readability, and writability.
 */
export declare function exists(filePath: string, permissions?: number): Promise<boolean>;