/**
 * Talor SERP engine constants and utilities.
 */
export declare const DEFAULT_ENGINE = "google";
export declare const SUPPORTED_ENGINES: readonly ["google", "google_finance", "google_finance_markets", "google_flights", "google_hotels", "google_images", "google_jobs", "google_lens", "google_local", "google_maps", "google_news", "google_patents", "google_patents_details", "google_play", "google_play_books", "google_play_games", "google_play_movies", "google_play_product", "google_scholar", "google_scholar_author", "google_scholar_cite", "google_shopping", "google_trends", "google_videos", "google_web", "bing", "bing_images", "bing_maps", "bing_news", "bing_shopping", "bing_videos", "yandex", "duckduckgo"];
export type EngineKey = (typeof SUPPORTED_ENGINES)[number];
export declare const ENGINE_CATEGORIES: Record<string, EngineKey[]>;
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