import InitialState from './InitialState';
/**
 * Class describing a storage item for saving and loading
 * DID metadata and keys.
 */
export default class StorageItem {
    readonly name: string;
    readonly initialState: InitialState;
    readonly keys: any[];
    /**
     * Storage item version.
     */
    readonly version: string;
    /**
     * Date indicating the date and time
     * the storage was created.
     */
    readonly created: Date;
    /**
     * Flag indicating whether the DID has been
     * published to the network.
     */
    published: boolean;
    /**
     * Constructs a new instance on the @see StorageItem class.
     * @param name of the DID.
     * @param initialState of the DID.
     * @param keys associated with the DID.
     */
    constructor(name: string, initialState: InitialState, keys: any[]);
    /**
     * Checks if the specified storage item exists.
     * @param directory from which to load the storage item.
     * @param name of the storage item to load.
     */
    static exists(directory: string, name: string): boolean;
    /**
     * Loads the DID with @param name from the specified directory.
     * @param directory from which to load the DID.
     * @param name of the DID to load.
     */
    static load(directory: string, name: string): Promise<StorageItem>;
    /**
     * Saves the instance of the DID to specified directory
     * as a json file.
     * @param directory to save the DID to.
     */
    save(directory: string): Promise<void>;
}