import { Type } from '@nestjs/common';
import { IEvent } from './event.interface';
export interface EventIdProvider<EventBase extends IEvent = IEvent> {
    /**
     * Retrieves the unique identifier for the given event instance.
     * Returns null if the event is not associated with any handler.
     *
     * @param event - The event type for which to retrieve the ID.
     * @returns The unique identifier for the event, or null if not connected to any handler.
     */
    getEventId(event: Type<EventBase>): string | null;
}