import type { InstanceAiEvent } from '@n8n/api-types';
import type { InstanceAiEventBus, StoredEvent } from '@n8n/instance-ai';
export declare class InProcessEventBus implements InstanceAiEventBus {
    private readonly emitter;
    private readonly store;
    private readonly sizeBytes;
    private readonly nextId;
    constructor();
    publish(threadId: string, event: InstanceAiEvent): void;
    subscribe(threadId: string, handler: (storedEvent: StoredEvent) => void): () => void;
    getEventsAfter(threadId: string, afterId: number): StoredEvent[];
    getEventsForRun(threadId: string, runId: string): InstanceAiEvent[];
    getEventsForRuns(threadId: string, runIds: string[]): InstanceAiEvent[];
    getNextEventId(threadId: string): number;
    clearThread(threadId: string): void;
    clear(): void;
    private evictIfNeeded;
    private getOrCreateStore;
}