/**
 * Custom storage adapter for AWS Amplify that persists to file system.
 * Used for CLI to maintain sessions between invocations.
 */
export declare const createFileStorage: () => {
    setItem: (key: string, value: string) => Promise<void>;
    getItem: (key: string) => Promise<string | null>;
    removeItem: (key: string) => Promise<void>;
    clear: () => Promise<void>;
};
/**
 * Clears all stored session data.
 */
export declare const clearSession: () => Promise<void>;