import type { FastifyInstance } from "fastify";
interface WebpackManifestEntrypoints {
    [index: string]: {
        assets?: {
            css?: string[];
            js: string[];
        };
    };
}
export interface WebpackManifest {
    entrypoints: WebpackManifestEntrypoints;
    [index: string]: WebpackManifestEntrypoints | string;
}
/** Doodad that can generate asset urls from the webpack manifest */
export declare class AssetManager {
    readonly server: FastifyInstance;
    manifestPath: string;
    manifestCache: WebpackManifest | null;
    constructor(server: FastifyInstance);
    reloadManifest(): Promise<WebpackManifest>;
    expireManifestCache(): void;
    url: (asset: string) => Promise<string>;
    entrypointTags: (entrypoint: string, only?: "css" | "js") => Promise<string>;
    stylesheetTag: (href: string) => string;
    scriptTag: (src: string) => string;
    jsSources: (entrypoint: string) => Promise<string[] | "<!-- No webpack manifest found, but not raising cause in test mode -->">;
    private buildURL;
}
export {};