/**
 * Provider → environment variable resolution (no credentials module dependency).
 * Keys align with pi-ai KnownProvider + @earendil-works/pi-ai getEnvApiKey where applicable.
 */
export declare const PROVIDER_ENV_MAP: Record<string, string[]>;
/**
 * Get API key from environment variables for a provider
 */
export declare function getApiKeyFromEnv(provider: string): string | undefined;
