import { AssetFetcher } from '../types/asset-fetcher';
import { Theme } from '../types/theme';

export declare class DefaultAssetFetcher implements AssetFetcher {
    private themes;
    private cache;
    private onCache?;
    constructor();
    setOnFetchFromCache(cb: (url: string) => Promise<string>): void;
    addTheme(theme: Theme): void;
    load(): Promise<void>;
    resolve(file: string): string;
    private fetchCachedExt;
    private fetchCached;
    fetch(file: string): Promise<any>;
    fetchHbs(file: string, _: string, cb: (e: any | null, data?: string) => void): void;
}