import { ChildProcess } from 'child_process';
/**
 * Finds an unused port dynamically on localhost.
 */
export declare function getFreePort(): Promise<number>;
export interface BrowserInfo {
    name: string;
    path: string;
    type: 'chrome' | 'edge' | 'brave' | 'chromium';
}
/**
 * Detects chromium-based browsers installed on the system.
 */
export declare function getAvailableBrowsers(): BrowserInfo[];
/**
 * Creates a clean temporary directory for the browser profile.
 */
export declare function createTempProfileDir(): string;
/**
 * Launches a browser in the background with remote debugging enabled.
 */
export declare function launchBrowser(browserPath: string, port: number, tempDir: string, startUrl?: string): ChildProcess;
/**
 * Connects to the browser via CDP on the given port and waits for the REVEL_SESSION cookie.
 */
export declare function waitForLoginCookie(port: number, childProc?: ChildProcess, timeoutMs?: number): Promise<string>;