import type { Plugin } from "vite";
export declare const USER_AGENT_STUB_ID = "\0cfni:user-agent-stub";
export declare const USER_AGENT_STUB_CODE = "\nexport function isBot(input) {\n    if (!input) return false;\n    return /Googlebot|Mediapartners-Google|AdsBot-Google|googleweblight|Storebot-Google|Google-PageRenderer|Google-InspectionTool|Bingbot|BingPreview|Slurp|DuckDuckBot|baiduspider|yandex|sogou|LinkedInBot|bitlybot|tumblr|vkShare|quora link preview|facebookexternalhit|facebookcatalog|Twitterbot|applebot|redditbot|Slackbot|Discordbot|WhatsApp|SkypeUriPreview|ia_archiver|GPTBot/i.test(\n        input\n    );\n}\n\nexport function userAgentFromString(input) {\n    return {\n        ua: input ?? \"\",\n        browser: { name: undefined, version: undefined, major: undefined },\n        cpu: { architecture: undefined },\n        device: { model: undefined, type: undefined, vendor: undefined },\n        engine: { name: undefined, version: undefined },\n        os: { name: undefined, version: undefined },\n        isBot: input === undefined ? false : isBot(input),\n    };\n}\n\nexport function userAgent(context) {\n    const headers = context?.headers;\n    const ua = headers?.get ? headers.get(\"user-agent\") : undefined;\n    return userAgentFromString(ua ?? undefined);\n}\n\nexport default {\n    isBot,\n    userAgent,\n    userAgentFromString,\n};\n";
export declare function userAgentStubPlugin(): Plugin;