import type { BrowserProvider, OpenOutcome, ActOutcome } from '../provider.js';
import type { ActInput, BrowserConfig, BrowserProviderState, CloseInput, ExtractInput, ExtractResult, ObserveInput, OpenInput, RenderInput, RenderResult, ScreenshotInput, ScreenshotResult } from '../types.js';
export declare class PlaywrightProvider implements BrowserProvider {
    readonly name = "playwright";
    private readonly config;
    private readonly launcher;
    private readonly sessions;
    constructor(config: BrowserConfig);
    open(input: OpenInput): Promise<OpenOutcome>;
    observe(input: ObserveInput): Promise<import('../types.js').BrowserObservation>;
    act(input: ActInput): Promise<ActOutcome>;
    render(input: RenderInput): Promise<RenderResult>;
    screenshot(input: ScreenshotInput): Promise<ScreenshotResult>;
    extract(_input: ExtractInput): Promise<ExtractResult>;
    close(input: CloseInput): Promise<void>;
    describe(sessionId: string): BrowserProviderState | null;
    shutdown(): Promise<void>;
    private ensureSessionState;
    private updateSessionFromObservation;
    private captureScreenshot;
}