export interface BrowserHandle {
    /** Remote document — chain DOM calls directly */
    document: any;
    /** Remote window object */
    window: any;
    /** Navigate to a URL (triggers page reload, reconnect after) */
    navigate(url: string): Promise<{
        navigated: string;
    }>;
    /** Convert page/element DOM to markdown with links */
    getPageMarkdown(selector?: string): Promise<{
        markdown: string;
        length: number;
    } | {
        error: string;
    }>;
    /** Get visible text of an element or page */
    getVisibleText(selector?: string): Promise<{
        text: string;
        length: number;
    } | {
        error: string;
    }>;
    /** Take a screenshot. String = selector, object = options (preset, format, quality, scale, maxWidth) */
    screenshot(selectorOrOpts?: string | {
        selector?: string;
        preset?: 'viewport' | 'element' | 'full' | 'thumb' | 'hd';
        format?: 'png' | 'jpeg';
        quality?: number;
        scale?: number;
        maxWidth?: number;
    }): Promise<{
        data: string;
        width: number;
        height: number;
    } | {
        error: string;
    }>;
    /** Click an element by CSS selector */
    click(selector: string): Promise<{
        clicked: string;
        tag: string;
    } | {
        error: string;
    }>;
    /** Fill an input by CSS selector */
    fill(selector: string, value: string): Promise<{
        filled: string;
        value: string;
    } | {
        error: string;
    }>;
    /** Run JS in the browser via eval */
    eval(expression: string): Promise<string>;
}
export interface GatewayConnection {
    /** How many browsers are connected */
    getBrowserCount(): Promise<number>;
    /** List connected browsers */
    getBrowserList(): Promise<Array<{
        connId: string;
        browserId: string | null;
        serverId: string | null;
    }>>;
    /** List registered project server IDs */
    listProjects(): Promise<string[]>;
    /** Get a project-scoped browser handle. No arg = latest project. */
    getProject(serverId?: string): BrowserHandle;
    /** Subscribe to real-time event stream */
    subscribeEvents(browserId?: string): Promise<ReadableStream>;
    /** Close the connection (no auto-reconnect) */
    close(): void;
}
export declare function connect(url: string): Promise<GatewayConnection>;
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