type TError = unknown;
export interface ErrorRouteSynchronizerProps {
    errorUrlParamName: string;
    /**
     * the error page will be shown if the identity of the error object changes
     * (even if the error type and message are exactly the same)
     */
    error: TError;
}
/**
 * A React component that adds a URL search param (usually `error`) if the `error`
 * prop is non-null. If the `error` prop is null, the URL search param is removed.
 *
 * Usually, the `error` prop will come from the Redux store. This allows you to display
 * an error page whenever an error occurs anywhere in your application.
 *
 * ### Test Cases
 *
 * 1. When an error occurs, the error param is added to the URL and the error page is
 *    displayed.
 * 2. When the URL contains the error param and user refreshes the page, the error
 *    param is removed and the error page is not displayed.
 * 3. When the user is on the error page and clicks back, they are returned to the page
 *    they were on when the error occurred.
 * 4. This tests the errorKey functionality.
 *    a. Error occurs, and error page is displayed.
 *    b. User navigates to some other page.
 *    c. Another error occurs. Make sure the error page is displayed.
 */
export declare function ErrorRouteSynchronizer({ errorUrlParamName, error, }: ErrorRouteSynchronizerProps): null;
export {};