export interface ExternalInfo {
    url: string;
    globalName?: string;
    urlTransformer?: string;
    includeImports?: string | string[];
}
export interface Externals {
    [key: string]: ExternalInfo;
}
export type ModuleExternalInfo = Omit<ExternalInfo, 'urlTransformer'> & {
    urlTransformer: (url: string) => string;
};
export interface ModuleExternals {
    [key: string]: ModuleExternalInfo;
}
type GuaranteedCache = Pick<Cache, 'match' | 'put' | 'add'>;
type CacheLike = Partial<Cache> & GuaranteedCache;
export declare class CachedExternal {
    url: string;
    loading: boolean;
    failed: boolean;
    error?: any;
    loaded: boolean;
    private response;
    private cachePromise?;
    private retries;
    private readyListener?;
    static MAX_RETRIES: number;
    constructor(url: string);
    getCache(forceStatic?: boolean): Promise<CacheLike>;
    getContent(): Promise<string | undefined>;
    setContent(content: string): Promise<void>;
    waitForLoad(): Promise<Response | undefined>;
    waitForReady(): Promise<void>;
    loadResponse(forceStatic?: boolean): Promise<Response | undefined>;
    load(): Promise<void>;
}
export declare const EXTERNALS_MODULE_NAME: "externalsModule";
export declare const SYNCED_EXTERNALS_MODULE_NAME: "syncedExternals";
export {};