/**
 * Metadata key for storing roles in the decorator.
 */
export declare const ROLES_KEY = "roles";
/**
 * Decorator to set required roles for a route or controller.
 * @param roles List of role names required to access the resource.
 * @returns Custom metadata decorator for role-based access control.
 */
export declare const Roles: (...roles: string[]) => import("@nestjs/common").CustomDecorator<string>;