/** Playground for quickly spinning up new ideas without the overhead of the whole project. */
export declare function browserPlay(opts?: {
    /** Default: `"./"` */
    rootDir?: string;
    /** Default: `"playground/web"` */
    playgroundDir?: string;
    /** Be careful this dir gets cleaned out on start. Default: `".temp/web"` */
    outCacheDir?: string;
    /** Default: `"index.tsx"` */
    entryFile?: string;
    /** Default: `['index.html', 'fav.ico']` */
    copyFiles?: string[];
    /** Default: `3333` */
    port?: number;
    /** Playground will create some starter files to speed things up, if you want to specify
     * a different set of starter files you can point to a directory that will be copied from.
     * Eg: `"./playground-init"`.
     */
    starterFilesDir?: string;
    /** Other dirs that on change should trigger a build. */
    watchOtherDirs?: string[];
    /** Setting this to true will delete all files in `playgroundDir` and replace with new starter files. */
    overwrite?: boolean;
}): Promise<void>;