/** Listener registry returned by {@link createSubscriberSet}. */
export interface SubscriberSet<Args extends unknown[] = []> {
    /** Register a listener; returns its unsubscribe function. */
    subscribe(listener: (...args: Args) => void): () => void;
    /** Invoke every listener; a throwing listener never stops the others. */
    notify(...args: Args): void;
    /** Number of registered listeners. */
    readonly size: number;
    /** Remove all listeners. */
    clear(): void;
}
/**
 * Create a subscriber set: the canonical subscribe/notify observable used
 * across modules. Notification iterates a snapshot, so a listener that
 * unsubscribes (itself or others) mid-notify is safe, and listener errors are
 * isolated (routed to `onListenerError` when provided, otherwise swallowed).
 */
export declare function createSubscriberSet<Args extends unknown[] = []>(onListenerError?: (error: unknown) => void): SubscriberSet<Args>;
//# sourceMappingURL=subscriber-set.d.ts.map