import { type ExperienceData, type SubscribeCallback, type UFOGlobalEventStreamEvent, type UFOGlobalEventStreamExperiencePayload, type UFOGlobalEventStreamSubscribe, type UFOGlobalEventStreamUnsubscribe } from '../types';
export type GlobalEventStream = {
    __buffer_only__: boolean;
    push(event: UFOGlobalEventStreamEvent): void;
};
declare global {
    var __UFO_GLOBAL_EVENT_STREAM__: any;
}
export declare const getGlobalEventStream: () => GlobalEventStream;
export declare const setGlobalEventStream: (eventStream: GlobalEventStream) => void;
export declare const subscribeEvent: (experienceId: string, callback: SubscribeCallback) => UFOGlobalEventStreamSubscribe;
export declare const unsubscribeEvent: (experienceId: string, callback: SubscribeCallback) => UFOGlobalEventStreamUnsubscribe;
export declare const experiencePayloadEvent: (data: ExperienceData) => UFOGlobalEventStreamExperiencePayload;