/**
 * Utilities to modify URLs.
 */
export declare class UrlUtils {
    /**
     * Ensures there is only one trailing slash if this is a segment or a URL without a query or hash.
     *
     * With this method you can easily combine multiple segments together without having to worry about adding slashes.
     *
     * E.g.
     *
     * const url = host + UrlUtils.ensureTrailingSlash(segment1) + UrlUtils.ensureTrailingSlash(segment2)
     *
     * @param {string} urlString
     * @returns {string}
     */
    static ensureTrailingSlash(urlString: string): string;
}