import { CookieAuth, IAuthentication } from "@c8y/client";
import { C8yAuthOptions } from "../shared/auth";
import { C8yClient } from "../shared/c8yclient";
/**
 * Helper to normalize any given arguments and Cypress `prevSubject`.
 *
 * When chaining commands, Cypress will pass result from previous subject
 * (parent) as first argument. In case of optional `prevSubject` Cypress will pass
 * `null` as first argument if previous command did not yield a result value.
 *
 * Depending on the hierarchy of chained commands, the structure of the
 * `prevSubject` argument will be different.
 *
 * Supported options
 * 1. [<prevSubject>, arguments]
 * 2. {"<index>": [<prevSubject>, arguments], "<index>": arguments }
 *
 * Structure of 2) depends on the command chainer.
 */
export declare function normalizedArguments(args: any[] | any): any[];
/**
 * Get `normalizedArguments` and insert auth options from
 * env variables at the beginning of the arguments.
 */
export declare function normalizedArgumentsWithAuth(args: any[]): any[];
export declare function normalizedC8yclientArguments(args: any[]): any[];
export declare function getCookieAuthFromEnv(): CookieAuth | undefined;
export declare function getXsrfToken(): any;
export declare function getAuthOptionsFromEnv(): C8yAuthOptions | undefined;
export declare function getAuthOptions(...args: any[]): C8yAuthOptions | undefined;
export declare function userAliasFromArgs(...args: any[]): string | undefined;
/**
 * Gets and implementation of IAuthentication from the given auth options.
 */
export declare function getC8yClientAuthentication(auth: C8yAuthOptions | string | IAuthentication | undefined): IAuthentication | undefined;
export declare function persistAuth(auth: C8yAuthOptions): void;
export declare function tenantFromBasicAuth(auth: {
    user: string;
}): string | undefined;
export declare function getSystemVersionFromEnv(): string | undefined;
export declare function getShellVersionFromEnv(): string | undefined;
/**
 * Tries to get the base URL from environment variables. The following
 * environment variables are checked in order:
 * - C8Y_BASEURL
 * - C8Y_BASE_URL
 *
 * @returns Base URL from environment variables.
 */
export declare function getBaseUrlFromEnv(): string | undefined;
export declare function storeClient(client: C8yClient): void;
export declare function restoreClient(): C8yClient | undefined;
export declare function resetClient(): void;
export declare function throwError(message: string): never;