export declare let lastLoadedEnvFiles: string[];
/**
 * Loads and expands environment variables in a prioritized order
 *
 * 1. Main .env file (.env)
 * 2. Local environment overrides (.env.local)
 * 3. Environment-specific (.env.{NODE_ENV})
 * 5. Environment-specific local (.env.{NODE_ENV}.local)
 */
export declare function loadEnvironmentVariables(): string[];