import { IDecentralizedStorage, IDelegatedFsOptions, ILocalDataManager, ISigner } from './interfaces';
/**
 * Delegated file system.
 */
export declare class DelegatedFs {
    localDataManager: ILocalDataManager;
    decentralizedStorage: IDecentralizedStorage;
    authServiceAddress: string;
    readonly KEY_RESULT_DATA = "result-data";
    readonly KEY_USER_APP_DATA_ITEM = "user-app-data-item";
    private options;
    constructor(localDataManager: ILocalDataManager, decentralizedStorage: IDecentralizedStorage, authServiceAddress: string, options?: IDelegatedFsOptions);
    /**
     * Signs the data with the nonce and returns the signature.
     * @param data Data
     * @param nonce Nonce
     * @param signer Signer
     */
    static getDataSignature(data: string, nonce: number, signer: ISigner): Promise<string>;
    /**
     * Returns the text to sign for the delegated address.
     * @param userAddress User address
     * @param userDelegatedAddress User delegated address
     * @param applicationAddress Application address
     * @param errorText Error text
     */
    static getDelegatedText(userAddress: string, userDelegatedAddress: string, applicationAddress: string, errorText?: string): string;
    /**
     * Creates a signature for the delegated address.
     * @param userAddress User address
     * @param userDelegatedAddress User delegated address
     * @param applicationAddress Application address
     * @param signer Signer
     * @param errorText Error text
     */
    static createDelegateSignature(userAddress: string, userDelegatedAddress: string, applicationAddress: string, signer: ISigner, errorText?: string): Promise<string>;
}