import { EnqueuedJob, PluginsServerConfig } from '../../../types';
import { S3Wrapper } from '../../../utils/db/s3-wrapper';
import { JobQueueBase } from '../job-queue-base';
export declare class S3Queue extends JobQueueBase {
    serverConfig: PluginsServerConfig;
    s3Wrapper: S3Wrapper | null;
    constructor(serverConfig: PluginsServerConfig);
    connectProducer(): Promise<void>;
    enqueue(retry: EnqueuedJob): Promise<void>;
    disconnectProducer(): void;
    readState(): Promise<boolean>;
    connectS3(): Promise<void>;
    private listObjects;
    private getS3Wrapper;
    private testS3Connection;
}