import type { LicenseKeyFormat } from './types';
/**
 * Tells which format a license key is in, without validating it. The
 * entitlement key carries no leading tag - it starts with prose and ends with
 * the bracketed machine-readable block - so the formats have to be told apart
 * in one place, and this is it.
 *
 * The answer is about SHAPE only. An "entitlement" result means "read this with
 * the entitlement reader", not "this key is valid".
 *
 * @param {string} licenseKey The license key to inspect.
 * @returns {LicenseKeyFormat}
 */
export declare function detectLicenseKeyFormat(licenseKey: unknown): LicenseKeyFormat;
/**
 * Tells whether a license key has the shape of an entitlement key. This is the
 * cheap routing test taken before any parsing - a legacy key pays two string
 * scans for it.
 *
 * @param {string} licenseKey The license key to test.
 * @returns {boolean}
 */
export declare function isEntitlementKey(licenseKey: unknown): boolean;