/*!
 * Copyright 2021 WPPConnect Team
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
import { EventEmitter } from './EventEmitter';
/** @whatsapp WAWebBackendEventBusTypes.flow */
export declare const BackendEvent: {
    readonly APP_STATE_SYNC_COMPLETED: 'app_state_sync_completed';
    readonly LOGOUT: 'logout';
    readonly REFRESH_QR: 'refresh_qr';
    readonly STARTING_LOGOUT: 'starting_logout';
    readonly ON_INITIAL_CHAT_SYNCED: 'on_initial_chat_synced';
    readonly ON_RECENT_CHAT_HISTORY_SYNCED: 'on_recent_chat_history_synced';
    readonly ON_FULL_CHAT_HISTORY_SYNCED: 'on_full_chat_history_synced';
    readonly ON_CRITICAL_SYNC_DONE: 'on_critical_sync_done';
    readonly NEW_HISTORY_SYNC_CHUNK_PROCESSED: 'new_history_sync_chunk_processed';
    readonly STORAGE_INITIALIZATION_ERROR: 'storage_initialization_error';
    readonly SOCKET_STREAM_DISCONNECTED: 'socket_stream_disconnected';
    readonly OPEN_SOCKET_STREAM: 'open_socket_stream';
    readonly RECONNECT_SOCKET: 'reconnect_socket';
    readonly SET_SOCKET_STATE: 'set_socket_state';
    readonly UPDATE_STATUS_PRIVACY_SETTINGS: 'update_status_privacy_settings';
    readonly ACCOUNT_TEMPORARILY_BANNED: 'account_temporarily_banned';
    readonly ACCOUNT_SYNC_FOR_PRIVACY: 'account_sync_for_privacy';
    readonly UNEXPECTED_LOGOUT_MODAL: 'unexpected_logout_modal';
    readonly INITIAL_LOAD_READY: 'initial_load_ready';
    readonly MAIN_STREAM_MODE_READY: 'main_stream_mode_ready';
    readonly SERVICE_UNAVAILABLE_503: 'service_unavailable_503';
    readonly OFFLINE_PROCESS_READY: 'offline_process_ready';
    readonly OFFLINE_DELIVERY_END: 'offline_delivery_end';
    readonly OFFLINE_DELIVERY_STATE_RESET: 'offline_delivery_state_reset';
    readonly ON_AB_PROPS_UPDATE: 'on_ab_props_update';
    readonly AB_PROPS_LOADED: 'ab_props_loaded';
};
export type BackendEventName = (typeof BackendEvent)[keyof typeof BackendEvent];
/** @whatsapp WAWebBackendEventBus */
export declare class BackendEventBusClass extends EventEmitter {
    isMainStreamReadyMd: boolean;
    isOfflineDeliveryEnd: boolean;
    onStorageInitializationError(handler: () => void): this;
    triggerStorageInitializationError(error?: any): void;
}
/** @whatsapp WAWebBackendEventBus */
export declare const BackendEventBus: BackendEventBusClass;