/**
 * Loads environment variables from the root project's .env file
 * This allows the lib to access API keys from the main project's .env
 */
export declare function loadRootEnv(): void;
/**
 * Gets an environment variable with fallback pattern
 * @param key The environment variable key
 * @param defaultValue Optional default value
 * @returns The environment variable value, fallback, or default
 */
export declare function getEnvVar(key: string, defaultValue?: string): string | undefined;