import { z } from 'zod';
declare const autoLoginSchema: z.ZodObject<{
    /**
     * The URL of the NATS server to connect to.
     */
    natsUrl: z.ZodString;
    /**
     * The username to use when connecting to the NATS server.
     */
    username: z.ZodString;
    /**
     * The password to use when connecting to the NATS server.
     */
    password: z.ZodString;
}, "strip", z.ZodTypeAny, {
    natsUrl: string;
    username: string;
    password: string;
}, {
    natsUrl: string;
    username: string;
    password: string;
}>;
/**
 * Attempt to auto-login using credentials stored in sessionStorage.
 *
 * The credentials will automatically be cleared if they are invalid, the
 * session ends, or {@link logout} is called.
 *
 * Credentials are automatically stored updated by {@link login} and
 * {@link logout}.
 *
 * @returns true if auto-login was successful, false otherwise
 */
export declare function attemptAutoLogin(): Promise<boolean>;
/**
 * Sets credentials with which to auto-login.
 *
 * If an auto-login attempt fails, the credentials will be cleared for the remainder of the session and a login form
 * shown to the user. If the user logs in successfully, the credentials will be updated.
 *
 * ### Security Warning
 *
 * Use this function only if user authentication is handled by a separate system. Calling this function in
 * your application means your NATS credentials will be hard-coded into your application, which is a security risk.
 *
 * @param credentials - The credentials to store
 * @deprecated No, this won't be removed anytime soon. You can ignore this warning if you're aware of the security
 * implications.
 */
export declare function setAutoLoginCredentials(credentials: z.input<typeof autoLoginSchema>): void;
/**
 * @internal
 * Clear auto-login credentials from sessionStorage.
 */
export declare function clearAutoLogin(): void;
export {};