export declare const mochaAsync: (fn: any) => (done: any) => void;
export declare const sleep: (ms: any) => Promise<unknown>;
export declare const errorHelper: (fn: Function) => Promise<boolean>;
/**
 * passkey for unit tests. if the environment variable is not set it is using the default passkey.
 *
 * @export
 * @returns {string}
 */
export declare function getPasskeyForUnitTest(): string;