import { IFormatSettings } from './lib';
export interface ISerializableState {
    /**
     * Serialize the state of the object in a base64 string,
     * depending on formating settings this could be an encrypted state
     */
    serializeState(settings: IFormatSettings): Promise<string>;
}
/**
 *
 * @param {unknown} obj
 * @param {string} methodName
 * @return {boolean}
 */
export declare function hasMethod(obj: unknown, methodName: string): boolean;
/**
 * Check if a object implements IDisposableAsync interface
 * @param {unknown} obj
 * @return {boolean}
 */
export declare function isDisposableAsync(obj: unknown): boolean;
/**
 * Checks if an object implements the IDisposable interface
 * @param {unknown} obj
 * @return {boolean}
 */
export declare function isDisposable(obj: unknown): boolean;
/**
 *
 * @param {string} json
 * @param {IFormatSettings} settings
 */
export declare function encrypt(json: string, settings: IFormatSettings): Promise<string>;
/**
 *
 * @param {string} base64CipherText
 * @param {IFormatSettings} settings
 * @return {Promise<void>}
 */
export declare function decrypt(base64CipherText: string, settings: IFormatSettings): Promise<string>;