/**
 * Topic Subscriber for iframe communication
 * Manages subscriptions to topics and receives events from the host window
 */
import type { TopicDefinition, TopicSubscriptionCallback } from "./types";
export declare class TopicSubscriber {
    private subscriptions;
    private topics;
    private origin;
    private debug;
    private useGlobalDebug;
    private boundHandleMessage;
    private subscriptionIdCounter;
    private mockMode;
    private detectionTimeout;
    constructor(options?: {
        origin?: string;
        debug?: boolean;
    });
    private initDetection;
    private switchToMockMode;
    private isDebugEnabled;
    /**
     * Request the list of available topics from the host
     */
    private requestTopics;
    /**
     * Subscribe to a topic with a callback
     * Returns a subscription ID that can be used to unsubscribe
     */
    subscribe<T = any>(topic: string, callback: TopicSubscriptionCallback<T>): string;
    /**
     * Unsubscribe from a topic using subscription ID
     */
    unsubscribe(topic: string, subscriptionId: string): boolean;
    /**
     * Unsubscribe all callbacks for a topic
     */
    unsubscribeAll(topic: string): number;
    /**
     * Get list of available topics
     */
    getTopics(): Promise<TopicDefinition[]>;
    /**
     * Notify host about subscription changes
     */
    private notifySubscription;
    /**
     * Handle incoming messages from host
     */
    private handleMessage;
    /**
     * Handle incoming topic event and dispatch to callbacks
     */
    private handleTopicEvent;
    /**
     * Cleanup and destroy the subscriber
     */
    destroy(): void;
}