/** addUrlParamsWithoutOverwriting will add query parameters to a url if the url does not already include the new
 * parameter
 *
 * An error will be thrown if the inputUrl is invalid. See
 * https://developer.mozilla.org/en-US/docs/Web/API/URL/URL#exceptions
 *
 * @param inputUrl string | URL - URL to add params to. Throws if this URL is invalid
 * @param inputParams string | string[][] | Record<string, string> | URLSearchParams | undefined - Parameters to add
 * @returns URL
 */
export declare const addUrlParamsWithoutOverwriting: (inputUrl: ConstructorParameters<typeof URL>[0], inputParams: ConstructorParameters<typeof URLSearchParams>[0]) => URL;