import type { EventTransport } from './types.js';
import type { BaseEvent } from './base-event.js';
/**
 * Non-transactional fan-out event bus
 */
export declare class EventBus {
    private readonly transports;
    private readonly logger;
    constructor(transports: readonly EventTransport[]);
    /**
     * Fan-out an event to all configured transports. Each transport is isolated:
     * one failure is logged and won't break the others.
     */
    produceEvent<TPayload extends object>(event: BaseEvent<TPayload>): Promise<void>;
    produceEventSafely<TPayload extends object>(event: BaseEvent<TPayload>): void;
    getEnabledTransportNames(): readonly string[];
}
/**
 * Create EventBus instance using env configuration.
 */
export declare function createEventBusFromEnv(env?: NodeJS.ProcessEnv): EventBus;
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