/**
 * Marks a method to subscribe to a custom event emitted on the container.
 * The decorated method will receive the published payload.
 *
 * Example:
 * @Container()
 * class AuditService {
 *   @Subscriber('user.created')
 *   onUserCreated(payload: any) { ... }
 * }
 */
export declare function Subscriber(event: string): (target: any, propertyKey: string | symbol, _descriptor: PropertyDescriptor) => void;