import { SemanticVersion } from '../../utils/version/isSemanticVersion.js';
/**
 * The URL of the CKBox CDN.
 */
export declare const CKBOX_CDN_URL = "https://cdn.ckbox.io";
/**
 * A version of a file on the CKBox CDN.
 */
export type CKBoxCdnVersion = SemanticVersion;
/**
 * Creates a URL to a file on the CKBox CDN.
 *
 * @param bundle The name of the bundle.
 * @param file The name of the file.
 * @param version The version of the file.
 * @returns A function that accepts the version of the file and returns the URL.
 *
 * ```ts
 * const url = createCKBoxCdnUrl( 'ckbox', 'ckbox.js', '2.5.1' );
 *
 * expect( url ).to.be.equal( 'https://cdn.ckbox.io/ckbox/2.5.1/ckbox.js' );
 * ```
 */
export declare function createCKBoxCdnUrl(bundle: string, file: string, version: CKBoxCdnVersion): string;