How to use BrowserContextChannel class of Microsoft.Playwright.Transport.Channels package

...114                _defaultTimeout = value;115                Channel.SetDefaultTimeoutNoReplyAsync(value).IgnoreException();116            }117        }118        internal BrowserContextChannel Channel { get; }119        internal List<Page> PagesList { get; } = new();120        internal Page OwnerPage { get; set; }121        internal List<Worker> ServiceWorkersList { get; } = new();122        internal bool IsChromium => _initializer.IsChromium;123        internal BrowserNewContextOptions Options { get; set; }124        public Task AddCookiesAsync(IEnumerable<Cookie> cookies) => Channel.AddCookiesAsync(cookies);125        public Task AddInitScriptAsync(string script = null, string scriptPath = null)126        {127            if (string.IsNullOrEmpty(script))128            {129                script = ScriptsHelper.EvaluationScript(script, scriptPath);130            }131            return Channel.AddInitScriptAsync(script);132        }...

...30using Microsoft.Playwright.Helpers;31using Microsoft.Playwright.Transport.Protocol;32namespace Microsoft.Playwright.Transport.Channels33{34    internal class BrowserContextChannel : Channel<BrowserContext>35    {36        public BrowserContextChannel(string guid, Connection connection, BrowserContext owner) : base(guid, connection, owner)37        {38        }39        internal event EventHandler Close;40        internal event EventHandler<BrowserContextPageEventArgs> Page;41        internal event EventHandler<BrowserContextPageEventArgs> BackgroundPage;42        internal event EventHandler<WorkerChannelEventArgs> ServiceWorker;43        internal event EventHandler<BindingCallEventArgs> BindingCall;44        internal event EventHandler<RouteEventArgs> Route;45        internal event EventHandler<BrowserContextChannelRequestEventArgs> Request;46        internal event EventHandler<BrowserContextChannelRequestEventArgs> RequestFinished;47        internal event EventHandler<BrowserContextChannelRequestEventArgs> RequestFailed;48        internal event EventHandler<BrowserContextChannelResponseEventArgs> Response;49        internal override void OnMessage(string method, JsonElement? serverParams)50        {51            switch (method)52            {53                case "close":54                    Close?.Invoke(this, EventArgs.Empty);55                    break;56                case "bindingCall":57                    BindingCall?.Invoke(58                        this,59                        new() { BindingCall = serverParams?.GetProperty("binding").ToObject<BindingCallChannel>(Connection.DefaultJsonSerializerOptions).Object });60                    break;61                case "route":62                    var route = serverParams?.GetProperty("route").ToObject<RouteChannel>(Connection.DefaultJsonSerializerOptions).Object;63                    var request = serverParams?.GetProperty("request").ToObject<RequestChannel>(Connection.DefaultJsonSerializerOptions).Object;64                    Route?.Invoke(65                        this,66                        new() { Route = route, Request = request });67                    break;68                case "page":69                    Page?.Invoke(70                        this,71                        new() { PageChannel = serverParams?.GetProperty("page").ToObject<PageChannel>(Connection.DefaultJsonSerializerOptions) });72                    break;73                case "crBackgroundPage":74                    BackgroundPage?.Invoke(75                        this,76                        new() { PageChannel = serverParams?.GetProperty("page").ToObject<PageChannel>(Connection.DefaultJsonSerializerOptions) });77                    break;78                case "crServiceWorker":79                    ServiceWorker?.Invoke(80                        this,81                        new() { WorkerChannel = serverParams?.GetProperty("worker").ToObject<WorkerChannel>(Connection.DefaultJsonSerializerOptions) });82                    break;83                case "request":84                    Request?.Invoke(this, serverParams?.ToObject<BrowserContextChannelRequestEventArgs>(Connection.DefaultJsonSerializerOptions));85                    break;86                case "requestFinished":87                    RequestFinished?.Invoke(this, serverParams?.ToObject<BrowserContextChannelRequestEventArgs>(Connection.DefaultJsonSerializerOptions));88                    break;89                case "requestFailed":90                    RequestFailed?.Invoke(this, serverParams?.ToObject<BrowserContextChannelRequestEventArgs>(Connection.DefaultJsonSerializerOptions));91                    break;92                case "response":93                    Response?.Invoke(this, serverParams?.ToObject<BrowserContextChannelResponseEventArgs>(Connection.DefaultJsonSerializerOptions));94                    break;95            }96        }97        internal Task<PageChannel> NewPageAsync()98            => Connection.SendMessageToServerAsync<PageChannel>(99                Guid,100                "newPage",101                null);102        internal Task CloseAsync() => Connection.SendMessageToServerAsync(Guid, "close");103        internal Task PauseAsync()104            => Connection.SendMessageToServerAsync(Guid, "pause", null);105        internal Task SetDefaultNavigationTimeoutNoReplyAsync(float timeout)106            => Connection.SendMessageToServerAsync<PageChannel>(107                Guid,...

...78                Guid,79                "launch",80                args);81        }82        internal Task<BrowserContextChannel> LaunchPersistentContextAsync(83            string userDataDir,84            bool? headless = default,85            string channel = default,86            string executablePath = default,87            IEnumerable<string> args = default,88            Proxy proxy = default,89            string downloadsPath = default,90            string tracesDir = default,91            bool? chromiumSandbox = default,92            bool? handleSIGINT = default,93            bool? handleSIGTERM = default,94            bool? handleSIGHUP = default,95            float? timeout = default,96            IEnumerable<KeyValuePair<string, string>> env = default,97            bool? devtools = default,98            float? slowMo = default,99            bool? acceptDownloads = default,100            bool? ignoreHTTPSErrors = default,101            bool? bypassCSP = default,102            ViewportSize viewportSize = default,103            ScreenSize screenSize = default,104            string userAgent = default,105            float? deviceScaleFactor = default,106            bool? isMobile = default,107            bool? hasTouch = default,108            bool? javaScriptEnabled = default,109            string timezoneId = default,110            Geolocation geolocation = default,111            string locale = default,112            IEnumerable<string> permissions = default,113            IEnumerable<KeyValuePair<string, string>> extraHTTPHeaders = default,114            bool? offline = default,115            HttpCredentials httpCredentials = default,116            ColorScheme? colorScheme = default,117            ReducedMotion? reducedMotion = default,118            ForcedColors? forcedColors = default,119            string recordHarPath = default,120            bool? recordHarOmitContent = default,121            Dictionary<string, object> recordVideo = default,122            IEnumerable<string> ignoreDefaultArgs = default,123            bool? ignoreAllDefaultArgs = default,124            string baseUrl = default,125            bool? strictSelectors = default)126        {127            var channelArgs = new Dictionary<string, object>128            {129                { "userDataDir", userDataDir },130                { "headless", headless },131                { "channel", channel },132                { "executablePath", executablePath },133                { "args", args },134                { "downloadsPath", downloadsPath },135                { "tracesDir", tracesDir },136                { "proxy", proxy },137                { "chromiumSandbox", chromiumSandbox },138                { "handleSIGINT", handleSIGINT },139                { "handleSIGTERM", handleSIGTERM },140                { "handleSIGHUP", handleSIGHUP },141                { "timeout", timeout },142                { "env", env.Remap() },143                { "devtools", devtools },144                { "slowMo", slowMo },145                { "acceptDownloads", acceptDownloads },146                { "ignoreHTTPSErrors", ignoreHTTPSErrors },147                { "bypassCSP", bypassCSP },148                { "strictSelectors", strictSelectors },149            };150            if (viewportSize?.Width == -1)151            {152                channelArgs.Add("noDefaultViewport", true);153            }154            else155            {156                channelArgs.Add("viewport", viewportSize);157            }158            channelArgs.Add("screensize", screenSize);159            channelArgs.Add("userAgent", userAgent);160            channelArgs.Add("deviceScaleFactor", deviceScaleFactor);161            channelArgs.Add("isMobile", isMobile);162            channelArgs.Add("hasTouch", hasTouch);163            channelArgs.Add("javaScriptEnabled", javaScriptEnabled);164            channelArgs.Add("timezoneId", timezoneId);165            channelArgs.Add("geolocation", geolocation);166            channelArgs.Add("locale", locale);167            channelArgs.Add("permissions", permissions);168            channelArgs.Add("extraHTTPHeaders", extraHTTPHeaders.Remap());169            channelArgs.Add("offline", offline);170            channelArgs.Add("httpCredentials", httpCredentials);171            channelArgs.Add("colorScheme", colorScheme);172            channelArgs.Add("reducedMotion", reducedMotion);173            if (!string.IsNullOrEmpty(recordHarPath))174            {175                channelArgs.Add("recordHar", new176                {177                    Path = recordHarPath,178                    OmitContent = recordHarOmitContent.GetValueOrDefault(false),179                });180            }181            if (recordVideo != null)182            {183                channelArgs.Add("recordVideo", recordVideo);184            }185            channelArgs.Add("ignoreDefaultArgs", ignoreDefaultArgs);186            channelArgs.Add("ignoreAllDefaultArgs", ignoreAllDefaultArgs);187            channelArgs.Add("baseURL", baseUrl);188            channelArgs.Add("forcedColors", forcedColors);189            return Connection.SendMessageToServerAsync<BrowserContextChannel>(Guid, "launchPersistentContext", channelArgs);190        }191        internal Task<JsonElement> ConnectOverCDPAsync(string endpointURL, IEnumerable<KeyValuePair<string, string>> headers = default, float? slowMo = default, float? timeout = default)192        {193            var channelArgs = new Dictionary<string, object>194            {195                { "endpointURL", endpointURL },196                { "headers", headers.Remap() },197                { "slowMo", slowMo },198                { "timeout", timeout },199            };200            return Connection.SendMessageToServerAsync<JsonElement>(Guid, "connectOverCDP", channelArgs);201        }202        internal Task<JsonPipeChannel> ConnectAsync(string wsEndpoint = default, IEnumerable<KeyValuePair<string, string>> headers = default, float? slowMo = default, float? timeout = default)203        {...

...45                    Closed?.Invoke(this, EventArgs.Empty);46                    break;47            }48        }49        internal Task<BrowserContextChannel> NewContextAsync(50            bool? acceptDownloads = null,51            bool? bypassCSP = null,52            ColorScheme? colorScheme = null,53            ReducedMotion? reducedMotion = null,54            ForcedColors? forcedColors = null,55            float? deviceScaleFactor = null,56            IEnumerable<KeyValuePair<string, string>> extraHTTPHeaders = null,57            Geolocation geolocation = null,58            bool? hasTouch = null,59            HttpCredentials httpCredentials = null,60            bool? ignoreHTTPSErrors = null,61            bool? isMobile = null,62            bool? javaScriptEnabled = null,63            string locale = null,64            bool? offline = null,65            IEnumerable<string> permissions = null,66            Proxy proxy = null,67            bool? recordHarOmitContent = null,68            string recordHarPath = null,69            Dictionary<string, object> recordVideo = null,70            string storageState = null,71            string storageStatePath = null,72            string timezoneId = null,73            string userAgent = null,74            ViewportSize viewportSize = default,75            ScreenSize screenSize = default,76            string baseUrl = default,77            bool? strictSelectors = default)78        {79            var args = new Dictionary<string, object>80            {81                { "acceptDownloads", acceptDownloads },82                { "bypassCSP", bypassCSP },83                { "colorScheme", colorScheme },84                { "reducedMotion", reducedMotion },85                { "deviceScaleFactor", deviceScaleFactor },86            };87            if (extraHTTPHeaders != null)88            {89                args["extraHTTPHeaders"] = extraHTTPHeaders.Select(kv => new HeaderEntry { Name = kv.Key, Value = kv.Value }).ToArray();90            }91            args.Add("geolocation", geolocation);92            args.Add("hasTouch", hasTouch);93            args.Add("httpCredentials", httpCredentials);94            args.Add("ignoreHTTPSErrors", ignoreHTTPSErrors);95            args.Add("isMobile", isMobile);96            args.Add("javaScriptEnabled", javaScriptEnabled);97            args.Add("locale", locale);98            args.Add("offline", offline);99            args.Add("permissions", permissions);100            args.Add("proxy", proxy);101            args.Add("strictSelectors", strictSelectors);102            args.Add("forcedColors", forcedColors);103            if (!string.IsNullOrEmpty(recordHarPath))104            {105                args.Add("recordHar", new106                {107                    Path = recordHarPath,108                    OmitContent = recordHarOmitContent,109                });110            }111            if (recordVideo != null)112            {113                args.Add("recordVideo", recordVideo);114            }115            if (!string.IsNullOrEmpty(storageStatePath))116            {117                if (!File.Exists(storageStatePath))118                {119                    throw new PlaywrightException($"The specified storage state file does not exist: {storageStatePath}");120                }121                storageState = File.ReadAllText(storageStatePath);122            }123            if (!string.IsNullOrEmpty(storageState))124            {125                args.Add("storageState", JsonSerializer.Deserialize<StorageState>(storageState, Helpers.JsonExtensions.DefaultJsonSerializerOptions));126            }127            args.Add("timezoneId", timezoneId);128            args.Add("userAgent", userAgent);129            if (viewportSize?.Width == -1)130            {131                args.Add("noDefaultViewport", true);132            }133            else134            {135                args.Add("viewport", viewportSize);136                args.Add("screen", screenSize);137            }138            args.Add("baseURL", baseUrl);139            return Connection.SendMessageToServerAsync<BrowserContextChannel>(140                Guid,141                "newContext",142                args);143        }144        internal Task CloseAsync() => Connection.SendMessageToServerAsync<BrowserContextChannel>(Guid, "close", null);145        internal Task StartTracingAsync(IPage page, bool screenshots, string path, IEnumerable<string> categories)146        {147            var args = new Dictionary<string, object>148            {149                ["screenshots"] = screenshots,150                ["path"] = path,151                ["page"] = page,152                ["categories"] = categories,153            };154            return Connection.SendMessageToServerAsync(Guid, "crStartTracing", args);155        }156        internal async Task<string> StopTracingAsync()157            => (await Connection.SendMessageToServerAsync(Guid, "crStopTracing", null).ConfigureAwait(false))?.GetProperty("binary").ToString();158    }...

1using System;2using System.Threading.Tasks;3using Microsoft.Playwright;4using Microsoft.Playwright.Transport.Channels;5{6    {7        static async Task Main(string[] args)8        {9            using var playwright = await Playwright.CreateAsync();10            var browser = await playwright.Chromium.LaunchAsync();11            var context = await browser.NewContextAsync();12            var channel = context.Channel;13            var browserContextChannel = new BrowserContextChannel(channel.Connection, channel.Guid);14            await browserContextChannel.CloseAsync();15            await browser.CloseAsync();16        }17    }18}19However, when I try to use the CloseAsync() method of the BrowserContextChannel class, I get the following error:20However, when I try to use the CloseAsync() method of the BrowserContextChannel class, I get the following error:

1using Microsoft.Playwright;2using Microsoft.Playwright.Transport.Channels;3using System;4using System.Threading.Tasks;5{6    {7        static async Task Main(string[] args)8        {9            var playwright = await Playwright.CreateAsync();10            var browser = await playwright.Chromium.LaunchAsync();11            var context = await browser.NewContextAsync();12            var channel = context.Channel;13            var browserContextChannel = (BrowserContextChannel)channel;14            var cookies = await browserContextChannel.GetCookiesAsync();15            foreach (var cookie in cookies)16            {17                Console.WriteLine(cookie.Name);18                Console.WriteLine(cookie.Value);19            }

1using Microsoft.Playwright.Transport.Channels;2using System;3using System.Threading.Tasks;4{5    static async Task Main(string[] args)6    {7        var browser = await Playwright.CreateAsync();8        var context = await browser.NewContextAsync();9        var page = await context.NewPageAsync();10        await page.ScreenshotAsync("google.png");11        await context.CloseAsync();12        await browser.CloseAsync();13    }14}

1using Microsoft.Playwright;2using Microsoft.Playwright.Transport.Channels;3using System.Threading.Tasks;4{5    {6        static async Task Main(string[] args)7        {8            using var playwright = await Playwright.CreateAsync();9            await using var browser = await playwright.Chromium.LaunchAsync();10            BrowserContextChannel browserContextChannel = await browser.NewContextAsync();11            BrowserContext browserContext = browserContextChannel.Object;12            await browserContext.CloseAsync();13        }14    }15}

1using Microsoft.Playwright;2using Microsoft.Playwright.Transport.Channels;3using System.Threading.Tasks;4{5    {6        static async Task Main(string[] args)7        {8            var playwright = await Playwright.CreateAsync();9            var browser = await playwright.Chromium.LaunchAsync();10            var context = await browser.NewContextAsync();11            var channel = context.Channel;12            await browser.CloseAsync();13        }14    }15}

1using Microsoft.Playwright.Transport.Channels;2using System.Threading.Tasks;3{4{5static async Task Main(string[] args)6{7var playwright = await Playwright.CreateAsync();8var browser = await playwright.Chromium.LaunchAsync();9var context = await browser.NewContextAsync();10var page = await context.NewPageAsync();11await page.ScreenshotAsync("screenshot.png");12await browser.CloseAsync();13}14}15}16The type or namespace name 'BrowserContextChannel' could not be found (are you missing a using directive or an assembly reference?)

1using Microsoft.Playwright.Transport.Channels;2using Microsoft.Playwright.Transport;3using Microsoft.Playwright.Transport.Protocol;4using System;5using System.Threading.Tasks;6using System.Threading;7using System.IO;8using System.Text.Json;9using Microsoft.Playwright;10using Microsoft.Playwright.Transport.Channels;11{12    {13        static async Task Main(string[] args)14        {15            var playwright = await Playwright.CreateAsync();16            var browser = await playwright.Chromium.LaunchAsync(new BrowserTypeLaunchOptions17            {18                Args = new[] { "--disable-features=IsolateOrigins,site-per-process" }19            });20            var page = await browser.NewPageAsync();21            var browserContextChannel = new BrowserContextChannel(page.BrowserContext);22            var browserContextTransport = new BrowserContextTransport(browserContextChannel);23            var browserContext = new BrowserContext(browserContextTransport);24            var page2 = await browserContext.NewPageAsync();25            await page2.ScreenshotAsync(new PageScreenshotOptions26            {27            });

1var browserContextChannel = new BrowserContextChannel(browserContext);2var page = await browserContextChannel.NewPageAsync();3var title = await page.TitleAsync();4var browserContextChannel = new BrowserContextChannel(browserContext);5var page = await browserContextChannel.NewPageAsync();6var title = await page.TitleAsync();7var browserContextChannel = new BrowserContextChannel(browserContext);8var page = await browserContextChannel.NewPageAsync();9var title = await page.TitleAsync();10var browserContextChannel = new BrowserContextChannel(browserContext);11var page = await browserContextChannel.NewPageAsync();12var title = await page.TitleAsync();13var browserContextChannel = new BrowserContextChannel(browserContext);14var page = await browserContextChannel.NewPageAsync();15var title = await page.TitleAsync();