import { EventEmitter } from '@distributedlab/tools';
import { ProviderEventBusEvents } from './enums';
import type { ProviderEventCallback, ProviderEventMap, ProviderEventPayload } from './types';
export declare class ProviderEventBus {
    #private;
    get emitter(): EventEmitter<ProviderEventMap>;
    emit(event: ProviderEventBusEvents, payload: ProviderEventPayload): void;
    onInitiated(cb: ProviderEventCallback): void;
    onConnect(cb: ProviderEventCallback): void;
    onDisconnect(cb: ProviderEventCallback): void;
    onAccountChanged(cb: ProviderEventCallback): void;
    onChainChanged(cb: ProviderEventCallback): void;
    clearHandlers(): void;
}