/**
 * utils around puppeteer
 *
 * @module
 */
import { Browser, InstalledBrowser } from "@puppeteer/browsers";
import { type LaunchOptions as PuppeteerLaunchOptions, type SupportedBrowser as PuppeteerSupportedBrowser } from "puppeteer-core";
export type SupportedBrowser = `${PuppeteerSupportedBrowser}@${string}`;
export type LaunchOptions = Omit<PuppeteerLaunchOptions, "browser" | "executablePath"> & {
    browser: SupportedBrowser;
};
/**
 * makes sure the given browser is installed and returns it.
 */
export declare const ensureBrowserInstalled: (browser: SupportedBrowser, opts?: {
    cacheDir?: string;
}) => Promise<InstalledBrowser>;
/**
 * try to launch the browser as determined by the env BROWSER variable
 */
export declare const getBrowser: (launchOpts?: Partial<LaunchOptions>, opts?: {
    cacheDir?: string;
}) => Promise<import("puppeteer-core").Browser & {
    product: Browser;
}>;