import { EventPayload, SubjectPayload } from '@empathyco/x-bus';
import { XEventPayload, XEventsTypes } from '../wiring/events.types';
import { WireMetadata } from '../wiring/wiring.types';
/**
 * Composable which injects the current location, returns the `on` and `emit` functions
 * using the bus and applying component metadata. Also unsubscribe from events when components is
 * unmounted.
 *
 * @remarks This composable tries to use the `XPlugin` bus and catches the exception thrown
 * by the `XPlugin` if it was not instantiated and uses the default `xBus` as fallback.
 *
 * @returns An object with the `on` and `emit` functions.
 * @public
 */
export declare function useXBus(): {
    on: <Event_1 extends keyof XEventsTypes, Metadata extends boolean>(event: Event_1, withMetadata: Metadata) => {
        subscribe: (callback: (payload: Metadata extends true ? SubjectPayload<EventPayload<XEventsTypes, Event_1>, WireMetadata> : EventPayload<XEventsTypes, Event_1>) => void) => void;
    };
    emit: <Event_2 extends keyof XEventsTypes>(event: Event_2, payload?: XEventPayload<Event_2> | undefined, metadata?: Omit<WireMetadata, 'moduleName'>) => Promise<import("@empathyco/x-bus").EmittedData<XEventsTypes, Event_2, WireMetadata>>;
};
//# sourceMappingURL=use-x-bus.d.ts.map