import { IBundleLoader } from "./IBundleLoader";
export interface OnlineBundleLoaderOptions {
    /**
     * The duration in ms determining how long an item
     * will stay in in-memory cache
     */
    cacheDuration?: number;
    /**
     * The patch version. If not specified, the latest
     * will be used.
     */
    patchVersion?: string;
    /**
     * The endpoint to use for fetching the files.
     */
    endpoint?: URL;
    /**
     * Whether once downloaded bundles will be cached as files.
     * Default: true.
     */
    cacheFile?: boolean;
    /**
     * The absolute path to a cache folder where files will be cached.
     *
     * @remarks The folder will be created if it not exists
     * @remarks Only used when `cacheFile` is true
     */
    cacheDir?: string;
}
/**
 * Loads bundles from the content.ggpk from the web
 */
export declare class OnlineBundleLoader implements IBundleLoader {
    private readonly _weakCache;
    /**
     * To turn on debug information for this entity, add `Loader:*`
     * to the `DEBUG` environment variable
     */
    private readonly _debug;
    private _options;
    private _state;
    constructor(options: OnlineBundleLoaderOptions);
    get Options(): Readonly<Required<OnlineBundleLoaderOptions>>;
    updateOptions(options: Partial<OnlineBundleLoaderOptions>): void;
    fetchFile(filePath: string): Promise<ArrayBuffer>;
    private _optionsWithDefaults;
    private buildUrl;
    private _fetchFile;
    private _cache;
    private _fetchFromCache;
    private _tryLoadFromFile;
}