export type LoopEventName = "attempt.started" | "worker.spawned" | "worker.idle" | "verify.done" | "rollover" | "loop.done" | "loop.max_attempts" | "loop.paused" | "loop.resumed" | "loop.stopped" | "loop.error" | "worker.question";
export type LoopEventPayload = {
    sessionId: string;
    attempt?: number;
    workerSessionId?: string;
    verdict?: string;
    details?: string;
    reason?: string;
    questionId?: string;
    question?: string;
    error?: string;
};
export type LoopEventHandler = (payload: LoopEventPayload) => void;
export declare class LoopEventBus {
    private readonly handlers;
    on(event: LoopEventName, handler: LoopEventHandler): () => void;
    emit(event: LoopEventName, payload: LoopEventPayload): void;
}
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