/**
 * Demo API key generation for CyborgDB.
 *
 * This module provides functionality to generate temporary demo API keys
 * from the CyborgDB demo API service.
 */
/**
 * Generate a temporary demo API key from the CyborgDB demo API service.
 *
 * This function generates a temporary API key that can be used for demo purposes.
 * The endpoint can be configured via the CYBORGDB_DEMO_ENDPOINT environment variable.
 *
 * @param description - Optional description for the demo API key.
 *                      Defaults to "Temporary demo API key" if not provided.
 * @returns Promise resolving to the generated demo API key.
 * @throws Error if the demo API key could not be generated.
 *
 * @example
 * ```typescript
 * import { getDemoApiKey, Client } from 'cyborgdb';
 * const demoKey = await getDemoApiKey();
 * const client = new Client("https://your-instance.com", demoKey);
 * ```
 */
export declare function getDemoApiKey(description?: string): Promise<string>;