import { ComponentType } from 'react';
/**
 * Drop in replacement for React.lazy that also supports preloading.
 *
 * Must be used to be able to call `preloadAll()` on the server.
 *
 * @example const LazyComponent = lazyWithPreload(() => import('./Component'));
 */
export declare function lazy<T extends ComponentType<any>>(factory: () => Promise<{
    default: T;
}>): import("react-lazy-with-preload").PreloadableComponent<T>;
/**
 * Preload all detected lazy() components.
 *
 * Can be used on the server to resolve all lazy imports before rendering to avoid the Suspense loading state to be triggered on the first render.
 */
export declare function preloadAll(): Promise<void>;