export declare class IPFSFetcherService {
    private readonly baseUrl;
    private processedCids;
    private cidToFilename;
    private readonly maxRetries;
    private readonly rateLimitDelay;
    private provider;
    private readonly cidHexConverter;
    private readonly schemaManifestService;
    constructor(gatewayUrl?: string, rpcUrl?: string);
    private loadSchemaManifest;
    private isValidCid;
    private fetchContent;
    private replaceCidsWithPaths;
    private processCidRecursive;
    fetchData(initialCid: string, baseDir?: string): Promise<string>;
    fetchFromTransaction(transactionHash: string, baseDir?: string): Promise<void>;
    private processNestedCids;
    /**
     * Fetch data from IPFS and save it as a ZIP file
     * @param initialCid The initial CID to fetch
     * @param outputZip Path to the output ZIP file
     */
    fetchDataToZip(initialCid: string, outputZip: string): Promise<void>;
    /**
     * Fetch data from transaction and save it as a ZIP file
     * @param transactionHash The transaction hash to fetch from
     * @param outputZip Path to the output ZIP file
     */
    fetchFromTransactionToZip(transactionHash: string, outputZip: string): Promise<void>;
    /**
     * Recursively add a directory to a ZIP file
     * @param zip The AdmZip instance
     * @param dirPath The directory path to add
     * @param zipPath The path inside the ZIP file
     */
    private addDirectoryToZip;
}
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