import { iot, mqtt5 } from 'aws-iot-device-sdk-v2/dist/browser';
import { IotaError } from '../validators/error';
export interface IotaCredentials {
    readonly credentials: Credentials;
    readonly connectionClientId: string;
}
export interface Credentials {
    readonly accessKeyId?: string;
    readonly secretKey?: string;
    readonly sessionToken?: string;
    readonly expiration?: Date;
}
export type ChannelProviderParams = {
    credentials: IotaCredentials;
    iotEndpoint?: string;
    region?: string;
};
export type PrepareRequestParams = {
    queryId: string;
    correlationId?: string;
    audience?: string;
};
export type IotaChannelRequest = {
    correlationId: string;
    payload: {
        request: string;
        client_id: string;
    };
};
export type IotaChannelRequestCallbackFunction = (err: IotaError | null, data: IotaChannelRequest | null) => void;
export declare class ChannelProvider {
    iotEndpoint: string;
    region: string;
    iotaConfigBuilder?: iot.AwsIotMqtt5ClientConfigBuilder;
    iotaClient?: mqtt5.Mqtt5Client;
    topicName?: string;
    constructor(params?: ChannelProviderParams);
    getClient(): mqtt5.Mqtt5Client;
    getTopicName(): string;
    initialize(credentials: IotaCredentials): Promise<void>;
    private startClient;
    private createConfigBuilder;
    private startMqttClient;
    private subscribeToTopic;
    private getRequest;
    prepareRequest(params: PrepareRequestParams): Promise<IotaChannelRequest>;
    prepareRequestWithCallback(params: PrepareRequestParams, callback: IotaChannelRequestCallbackFunction): void;
    private addDebugListeners;
}