/**
 * SDK Version - centralized to ensure consistency across all headers
 *
 * This version must be updated when publishing a new release.
 * It's used in:
 * - User-Agent header: oilpriceapi-node/{version}
 * - X-Client-Version header
 * - Package.json (should match)
 */
export declare const SDK_VERSION = "1.2.6";
/**
 * SDK identifier used in User-Agent and X-Api-Client headers
 */
export declare const SDK_NAME = "oilpriceapi-node";
/**
 * Build the full User-Agent string
 */
export declare function buildUserAgent(): string;