/**
 * Throw a not implemented exception.
 */
export declare const typeError: (message: string) => () => never;
/**
 * Data required for rendering a page.
 */
export interface PageData {
    props: object;
    formData: object | undefined;
}
/**
 * Allow access to server-side props on the client and server.
 */
export declare const PageDataContext: import("react").Context<PageData>;