/// <reference types="@yandex-int/messenger.utils/@types" />
import { ChannelOutgoing, ToSchema, RequestTransportCallback } from '@yandex-int/messenger.channels';
import { ClientApi, WidgetApi } from '@yandex-int/messenger.sdk';
import { Event } from '@yandex-int/messenger.utils';
import { WidgetEvents } from '../../__codegen__/WidgetEvents';
import { WidgetHandlers } from '../../__codegen__/WidgetHandlers';
declare type ScopeParams = {
    [ClientApi.API_SCOPE]: ClientApi.InitParams;
};
declare function channelFactory(channelId: string, transportFactory: (callback: RequestTransportCallback) => void, initParams: ClientApi.InitParams): ChannelOutgoing<ToSchema<WidgetApi.WidgetHandlers>, ToSchema<ClientApi.ClientHandlers>, ToSchema<ClientApi.ClientEvents>, {}, ToSchema<ClientApi.ClientObservers>, ScopeParams, void>;
declare type ChannelType = ReturnType<typeof channelFactory>;
export interface CloseEvent {
    isCriticalError: boolean;
    error: Maybe<Error>;
}
export declare class WidgetTransport<E extends Partial<WidgetEvents> = Partial<WidgetEvents>, H extends Partial<WidgetHandlers> = Partial<WidgetHandlers>> {
    private widgetId;
    private channelTransportFactory;
    private initParams;
    private events;
    private handlers;
    private channelInstance;
    /**
     * Вызывается при внутренней перезагрузке дочернего окна,
     * например при авторизации
     */
    readonly onReloaded: Event<void>;
    /**
     * Вызывается при закрытии транспорта
     */
    readonly onClose: Event<CloseEvent>;
    constructor(widgetId: string, channelTransportFactory: (callback: RequestTransportCallback) => void, initParams: ClientApi.InitParams, events: E, handlers: H);
    get channel(): ChannelType;
    destroy(): void;
    isConnectionClosed(): boolean;
    private handleConnectionEstablished;
    private handleClose;
    private handleEvent;
    private handleRequest;
}
export {};