import type { StorageService, StorageServiceConfig, UploadResponse, UploadFileParams } from './types';
export declare class Storage implements StorageService {
    /**
     * Configuration passed in by consumer (with defaults)
     */
    private readonly config;
    private readonly storageNodeSelector;
    private readonly logger;
    constructor(config: StorageServiceConfig);
    /**
     * Upload a file to a validator
     */
    uploadFile({ file, onProgress, metadata }: UploadFileParams): {
        start: () => Promise<UploadResponse>;
        abort: (shouldTerminate?: boolean) => void;
    };
    getUploadStatus(uploadId: string): Promise<UploadResponse>;
    /**
     * Generates a preview for a track at the given second offset
     * @param {Object} params
     * @param {string} params.cid - The CID of the track to generate a preview for
     * @param {number} params.secondOffset - The offset in seconds to start the preview from
     * @returns {Promise<string>} The CID of the generated preview
     */
    generatePreview({ cid, secondOffset }: {
        cid: string;
        secondOffset: number;
    }): Promise<any>;
    /**
     * Works for both track transcode and image resize jobs
     * @param id ID of the transcode/resize job
     * @param maxPollingMs millis to stop polling and error if job is not done
     * @returns successful job info, or throws error if job fails / times out
     */
    private pollProcessingStatus;
    /**
     * Gets the task progress given the task type and id associated with the job
     * @param id the id of the transcoding or resizing job
     * @returns the status, and the success or failed response if the job is complete
     */
    private getProcessingStatus;
}