export declare function extract_page_content(params?: {
    root_selector?: string;
    root_element?: HTMLElement;
    max_url_length?: number;
    max_content_length?: number;
    min_image_area?: number;
    ignored_tags?: string[];
    key_attributes?: string[];
}): string;
export declare function mark_screenshot_highlight_elements(screenshot: {
    imageBase64: string;
    imageType: "image/jpeg" | "image/png";
}, area_map: Record<string, {
    x: number;
    y: number;
    width: number;
    height: number;
}>, client_rect: {
    width: number;
    height: number;
}): Promise<string>;
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