/**
 * A reactive event bus for cross-component communication.
 *
 * @param key - A unique key identifying the event bus channel
 */
export declare function useEventBus<T = any>(key: string | symbol): UseEventBusReturn<T>;
export declare interface UseEventBusReturn<T = any> {
  on: (listener: EventBusListener<T>) => () => void
  once: (listener: EventBusListener<T>) => () => void
  emit: (event: T) => void
  off: (listener: EventBusListener<T>) => void
  reset: () => void
}
export type EventBusListener<T = any> = (_event: T) => void;