Added types to youtube-dl flags.

Flag info pulled from 'youtube-dl --help' (version 2021.06.06)

src/index.d.ts

@@ -90,10 +90,163 @@ declare module 'youtube-dl-exec' {
         _filename: string
     }
 
-    export default function(url: string, flags?: unknown, options?: Options<string>): Promise<YtResponse>;
-    export function raw(url: string, flags?: unknown, options?: Options<string>): ExecaChildProcess;
+    type YtFlags = {
+        help?: boolean,
+        version?: boolean,
+        update?: boolean,
+        ignoreErrors?: boolean,
+        abortOnError?: boolean,
+        dumpUserAgent?: boolean,
+        listExtractors?: boolean,
+        extractorDescriptions?: boolean,
+        forceGenericExtractor?: boolean,
+        defaultSearch?: string,
+        igonreConfig?: boolean,
+        configLocation?: string,
+        flatPlaylist?: boolean,
+        markWatched?: boolean,
+        noColor?: boolean,
+        proxy?: string,
+        socketTimeout?: number,
+        sourceAddress?: string,
+        forceIpv4?: boolean,
+        forceIpv6?: boolean,
+        geoVerificationProxy?: string,
+        geoBypass?: boolean,
+        geoBypassCountry?: string,
+        geoBypassIpBlock?: string,
+        playlistStart?: number,
+        playlistEnd?: number | 'last',
+        playlistItems?: string,
+        matchTitle?: string,
+        rejectTitle?: string,
+        maxDownloads?: number,
+        minFilesize?: string,
+        maxFilesize?: string,
+        date?: string,
+        datebefore?: string,
+        dateafter?: string,
+        minViews?: number,
+        maxViews?: number,
+        matchFilter?: string,
+        noPlaylist?: boolean,
+        yesPlaylist?: boolean,
+        ageLimit?: number,
+        dowloadArchive?: string,
+        includeAds?: boolean,
+        limitRate?: string,
+        retries?: number | 'infinite',
+        skipUnavailableFragments?: boolean,
+        abortOnUnavailableFragment?: boolean,
+        keepFragments?: boolean,
+        bufferSize?: string,
+        noResizeBuffer?: boolean,
+        httpChunkSize?: string,
+        playlistReverse?: boolean,
+        playlistRandom?: boolean,
+        xattrSetFilesize?: boolean,
+        hlsPreferNative?: boolean,
+        hlsPreferFfmpeg?: boolean,
+        hlsUseMpegts?: boolean,
+        externalDownloader?: string,
+        externalDownloaderArgs?: string,
+        batchFile?: string,
+        id?: boolean,
+        output?: string,
+        outputNaPlaceholder?: string,
+        autonumberStart?: number,
+        restrictFilenames?: boolean,
+        noOverwrites?: boolean,
+        continue?: boolean,
+        noPart?: boolean,
+        noMtime?: boolean,
+        writeDescription?: boolean,
+        writeInfoJson?: boolean,
+        writeAnnotations?: boolean,
+        loadInfoJson?: string,
+        cookies?: string,
+        cacheDir?: string,
+        noCacheDir?: boolean,
+        rmCacheDir?: boolean,
+        writeThumbnail?: boolean,
+        writeAllThumbnails?: boolean,
+        listThumbnails?: boolean,
+        quiet?: boolean,
+        noWarnings?: boolean,
+        simulate?: boolean,
+        skipDownload?: boolean,
+        getUrl?: boolean,
+        getTitle?: boolean,
+        getId?: boolean,
+        getThumbnail?: boolean,
+        getDuration?: boolean,
+        getFilename?: boolean,
+        getFormat?: boolean,
+        dumpJson?: boolean,
+        dumpSingleJson?: boolean,
+        printJson?: boolean,
+        newline?: boolean,
+        noProgress?: boolean,
+        consoleTitle?: boolean,
+        verbose?: boolean,
+        dumpPages?: boolean,
+        writePages?: boolean,
+        printTraffic?: boolean,
+        callHome?: boolean,
+        encoding?: string,
+        noCheckCertificate?: boolean,
+        preferInsecure?: boolean,
+        userAgent?: string,
+        referer?: string,
+        addHeader?: string,
+        bidiWorkaround?: boolean,
+        sleepInterval?: number,
+        maxSleepInterval?: number,
+        format?: string,
+        allFormats?: boolean,
+        preferFreeFormats?: boolean,
+        listFormats?: boolean,
+        youtubeSkipDashManifest?: boolean,
+        mergeOutputFormat?: string,
+        writeSub?: boolean,
+        writeAutoSub?: boolean,
+        allSubs?: boolean,
+        listSubs?: boolean,
+        subFormat?: string,
+        subLang?: string,
+        username?: string,
+        password?: string,
+        twofactor?: string,
+        netrc?: boolean,
+        videoPassword?: string,
+        apMso?: string,
+        apUsername?: string,
+        apPassword?: string,
+        apListMso?: boolean,
+        extractAudio?: boolean,
+        audioFormat?: string,
+        audioQuality?: number,
+        recodeVideo?: string,
+        postprocessorArgs?: string,
+        keepVideo?: boolean,
+        noPostOverwrites?: boolean,
+        embedSubs?: boolean,
+        embedThumbnail?: boolean,
+        addMetadata?: boolean,
+        metadataFromFile?: string,
+        xattrs?: boolean,
+        fixup?: string,
+        preferAvconv?: boolean,
+        preferFfmpeg?: boolean,
+        ffmpegLocation?: string,
+        exec?: string,
+        convertSubs?: string
+    }
+
+    export default function(url: string, flags?: YtFlags, options?: Options<string>): Promise<YtResponse>;
+    export function raw(url: string, flags?: YtFlags, options?: Options<string>): ExecaChildProcess;
     export function create(binaryPath?: string): {
-        (url: string, flags?: unknown, options?: Options<string>): Promise<YtResponse>;
-        raw(url: string, flags?: unknown, options?: Options<string>): ExecaChildProcess;
+        (url: string, flags?: YtFlags, options?: Options<string>): Promise<YtResponse>;
+        raw(url: string, flags?: YtFlags, options?: Options<string>): ExecaChildProcess;
     }
 }