import { Logger } from '@nestjs/common';
import { ClientProxy, ReadPacket, WritePacket, Serializer, OutgoingEvent, OutgoingRequest } from '@nestjs/microservices';
import { SnsSqsOptions } from '../../interfaces/sns-sqs-options.interface';
import { SQSClient } from '../../sqs-client/sqs-client';
import { QueueName } from '../../sqs-client/sqs.types';
export declare class SnsSqsClient extends ClientProxy {
    protected readonly options?: SnsSqsOptions;
    protected readonly logger: Logger;
    protected readonly subscriptionsCount: Map<string, number>;
    protected sqsClient: SQSClient;
    protected serializer: Serializer<OutgoingEvent | (OutgoingRequest & {
        responseQueueName: QueueName;
    }), any>;
    private clientId;
    constructor(options?: SnsSqsOptions);
    onModuleDestroy(): Promise<void>;
    protected publish(partialPacket: ReadPacket, callback: (packet: WritePacket) => any): () => void;
    protected dispatchEvent(packet: ReadPacket): Promise<any>;
    connect(): Promise<any>;
    close(): Promise<void>;
    private createSubscriptionHandler;
    private unsubscribeFromQueue;
    private handleError;
}