/**
 * Notifications Channel Controller
 *
 * Handles IN_APP notification streaming - broadcasts new notifications to users.
 * Only supports notification:created event - when a new notification is created,
 * it's broadcasted to the user's channel based on userId.
 *
 * NOTE: This controller handles IN_APP notifications only.
 * Email, SMS, and Push are handled by @plyaz/notifications package.
 *
 * Flow:
 * 1. Backend creates notification with user_id
 * 2. Backend emits notification:created via CoreEventManager
 * 3. This controller broadcasts to user:notifications:{userId}
 * 4. User's connected clients receive and display the notification
 */
import { BaseChannelController } from '../../../events/streaming/channels/BaseChannelController';
import type { StreamBroadcasterInterface } from '@plyaz/types/core';
/**
 * NotificationsChannelController - Broadcasts new notifications to users
 *
 * Channel:
 * - `user:notifications:{userId}` - User subscribes to receive their notifications
 */
export declare class NotificationsChannelController extends BaseChannelController {
    constructor();
    /**
     * Initialize event subscriptions.
     * Listens to notification:created and broadcasts to user's channel.
     */
    initialize(broadcaster: StreamBroadcasterInterface): void;
    /**
     * Override handlesChannel to match notification patterns.
     */
    handlesChannel(channel: string): boolean;
}
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