/**
 * Optional base class for events.
 *
 * Events do not need to extend this class — plain classes work. Extending `Event`
 * provides propagation control and tracing metadata.
 */
export declare abstract class Event {
    /**
     * Halt propagation to remaining listeners after current one.
     */
    propagationStopped: boolean;
    /**
     * UTC timestamp of when the event was created.
     */
    readonly dispatchedAt: Date;
    /**
     * Unique ID for tracing/logging.
     */
    readonly eventId: string;
    /**
     * If true, dispatch is deferred until current DB transaction commits.
     *
     * Note: transaction integration is best-effort and framework-dependent.
     */
    afterCommit: boolean;
    /**
     * Stop propagation to remaining listeners.
     */
    stopPropagation(): void;
}
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