declare const _useEventBus: {
    emit: (key: string, data?: any) => void;
    on: (key: string, callback: (data?: any) => void) => void;
    off: (key: string, callback: (data?: any) => void) => void;
};
export declare const useEventBus: {
    emit: (key: string, data?: any) => void;
    on: (key: string, callback: (data?: any) => void) => void;
    off: (key: string, callback: (data?: any) => void) => void;
};
export default _useEventBus;