import { GetQueueAttributesCommandOutput, SQSClient } from '@aws-sdk/client-sqs';
import { BackgroundEntry } from '../background-entry';
import { BackgroundAwsConfig } from '../../config/background/background-aws-config';
import { InternalBackgroundEntry } from '../internal-background-entry';
import { AbstractBackgroundManager } from './abstract-background-manager';
import { SNSClient } from '@aws-sdk/client-sns';
/**
 * Handles all submission of work to the background processing system.
 *
 * Note that this does NOT validate the input, it just passes it along.  This is
 * because it creates a circular reference to the processors if we try since they
 * define the type and validation.
 */
export declare class AwsSqsSnsBackgroundManager extends AbstractBackgroundManager {
    private _awsConfig;
    private _sqs;
    private _sns;
    constructor(_awsConfig: BackgroundAwsConfig, _sqs: SQSClient, _sns: SNSClient);
    get backgroundManagerName(): string;
    get awsConfig(): BackgroundAwsConfig;
    get sqs(): SQSClient;
    get sns(): SNSClient;
    addEntryToQueue<T>(entry: BackgroundEntry<T>, fireStartMessage?: boolean): Promise<string>;
    fireImmediateProcessRequest<T>(entry: BackgroundEntry<T>): Promise<string>;
    fireStartProcessingRequest(): Promise<string>;
    fetchApproximateNumberOfQueueEntries(): Promise<number>;
    fetchCurrentQueueAttributes(): Promise<GetQueueAttributesCommandOutput>;
    writeMessageToSnsTopic(message: string): Promise<string>;
    takeEntryFromBackgroundQueue(): Promise<InternalBackgroundEntry<any>[]>;
}