export type BusEventType = 'open' | 'close' | 'submit' | 'trigger';
export interface BusEvent {
    type: BusEventType;
    payload?: {
        flowId?: string;
        eventName?: string;
    };
}
export type BusListener = (event: BusEvent) => void;
declare class EventBus {
    private listeners;
    on(listener: BusListener): () => void;
    emit(event: BusEvent): void;
    clear(): void;
}
export declare const eventBus: EventBus;
export {};
//# sourceMappingURL=EventBus.d.ts.map