How to use Cleanup method of PuppeteerSharp.Page class

Best Puppeteer-sharp code snippet using PuppeteerSharp.Page.Cleanup

BrowserUtils.cs

Source:BrowserUtils.cs Github

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...104 } else {105 return await page.PdfDataAsync(options);106 }107 } finally {108 await Cleanup(page);109 }110 } finally {111 Cleanup(browser);112 }113 }114 private Task InjectCustomStylesAsync(Page page, ref PdfOptions options) {115 /*116 * It seems that Puppeteer is not overriding the page styles from the print stylesheet.117 * As a workaround, we inject a <style> tag with the @page overrides at the end of <head>.118 * This issue might be eventually resolved in Puppeteer, and seems to be tracked by https://github.com/GoogleChrome/puppeteer/issues/393119 */120 string overrides = string.Empty;121 if (!options.PreferCSSPageSize && options.Width != null && options.Height != null) {122 overrides += $"size: {options.Width} {options.Height}; ";123 }124 if (options.MarginOptions.Top != null) {125 overrides += $"margin-top: {options.MarginOptions.Top}; ";126 }127 if (options.MarginOptions.Right != null) {128 overrides += $"margin-right: {options.MarginOptions.Right}; ";129 }130 if (options.MarginOptions.Bottom != null) {131 overrides += $"margin-bottom: {options.MarginOptions.Bottom}; ";132 }133 if (options.MarginOptions.Left != null) {134 overrides += $"margin-left: {options.MarginOptions.Left}; ";135 }136 if (!string.IsNullOrEmpty(overrides)) {137 /* Change the options so that Puppeteer respects our overrides */138 options.PreferCSSPageSize = true;139 options.Width = options.Height = null;140 options.MarginOptions = new MarginOptions();141 /* We must add the <style> tag at the end of <body> to make sure it is not overriden */142 string pageOverrides = "@page { " + overrides + "}";143 return page.EvaluateExpressionAsync($"const style = document.createElement('style'); style.innerHTML = '{pageOverrides}'; document.head.appendChild(style);");144 } else {145 return Task.CompletedTask;146 }147 }148 public async Task<byte[]> ScreenshotPNG(string url, IEnumerable<CookieParam> cookies, ViewPortOptions viewport, ScreenshotOptions options, RevisionInfo revision) {149 LaunchOptions launchOptions = new LaunchOptions() {150 ExecutablePath = revision.ExecutablePath,151 Args = BrowserArgs,152 Headless = true,153 DefaultViewport = viewport,154 Timeout = 0155 };156 browser = await Puppeteer.LaunchAsync(launchOptions);157 try {158 var page = await browser.NewPageAsync();159 try {160 NavigationOptions navigationOptions = new NavigationOptions() {161 Timeout = 0162 };163 string originalUserAgent = await browser.GetUserAgentAsync();164 await page.SetUserAgentAsync($"{originalUserAgent} {USER_AGENT_SUFFIX}");165 if (cookies.Any()) {166 await page.SetCookieAsync(cookies.ToArray());167 }168 await page.GoToAsync(url, navigationOptions);169 return await page.ScreenshotDataAsync(options);170 } finally {171 await Cleanup(page);172 }173 } finally {174 Cleanup(browser);175 }176 }177 public bool UserAgentMatches(string userAgent) {178 return userAgent.EndsWith($" {USER_AGENT_SUFFIX}");179 }180 private async Task Cleanup(Page page) {181 await page.CloseAsync();182 }183 private void Cleanup(PuppeteerSharp.Browser browser) {184 browser.Disconnect();185 Dispose();186 }187 public void Dispose() {188 if (browser != null) {189 ProcessUtils.KillProcessTree(browser.Process);190 }191 }192 }193}...

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PuppeteerBrowser.cs

Source:PuppeteerBrowser.cs Github

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1using PuppeteerSharp;2using System;3namespace HlidacStatu.Util.WebShot4{5 public class PuppeteerBrowser : IDisposable6 {7 static PuppeteerBrowser()8 {9 new BrowserFetcher().DownloadAsync(BrowserFetcher.DefaultRevision).Wait();10 }11 public static Devmasters.Core.Logging.Logger logger = new Devmasters.Core.Logging.Logger("HlidacStatu.Util.Webshots");12 private static readonly PuppeteerBrowser theOnlyInstance = new PuppeteerBrowser("theOnlyInstance");13 public static PuppeteerBrowser TheOnlyStaticInstance14 {15 get16 {17 return theOnlyInstance;18 }19 }20 PuppeteerSharp.Browser browser = null;21 PuppeteerSharp.Page page = null;22 int width = 00;23 int height = 0;24 public string Name { get; set; } = null;25 public PuppeteerBrowser(string name = null)26 : this(1920, 1080, name)27 {28 }29 public PuppeteerBrowser(int displaywidth, int displayheight, string name = null)30 {31 this.width = displaywidth;32 this.height = displayheight;33 this.Name = "PuppeteerBrowser-" + (name ?? Devmasters.Core.TextUtil.GenRandomString(10));34 Init();35 }36 private void Init()37 {38 logger.Debug($"{this.Name}: Initiating PuppeteerBrowser");39 var chromeBinaryFileName = Devmasters.Core.Util.Config.GetConfigValue("ChromeBinaryFullPath");40 var launchOptions = new LaunchOptions()41 {42 Headless = true,43 DefaultViewport = new ViewPortOptions()44 {45 DeviceScaleFactor = 1,46 IsLandscape = false,47 HasTouch = false,48 IsMobile = false,49 Height = this.height,50 Width = this.width,51 }52 };53 if (!string.IsNullOrEmpty(chromeBinaryFileName))54 launchOptions.ExecutablePath = chromeBinaryFileName;55 this.browser = Puppeteer.LaunchAsync(launchOptions).Result;56 this.page = browser.NewPageAsync().Result;57 logger.Info($"{this.Name}: Initiated PuppeteerBrowser");58 }59 object browserLock = new object();60 public PuppeteerSharp.Page Page()61 {62 return this.page;63 }64 public void WarmUp()65 {66 logger.Debug($"{this.Name}: Warming up");67 this.page.GoToAsync("https://www.google.com").Wait();68 }69 internal void RecreatedChrome()70 {71 logger.Info($"{this.Name}: Recreating PuppeteerBrowser");72 lock (browserLock)73 {74 this.page.Dispose();75 this.browser.CloseAsync().Wait();76 }77 System.Threading.Thread.Sleep(500);78 Init();79 }80 #region IDisposable Support81 private bool disposedValue = false; // To detect redundant calls82 protected virtual void Dispose(bool disposing)83 {84 logger.Info($"{this.Name}: Disposing PuppeteerBrowser Instance");85 if (!disposedValue)86 {87 if (disposing)88 {89 // TODO: dispose managed state (managed objects).90 }91 logger.Debug($"{this.Name}: Closing PuppeteerBrowser");92 this.browser.CloseAsync().Wait();93 logger.Debug($"{this.Name}: Closed PuppeteerBrowser");94 // TODO: free unmanaged resources (unmanaged objects) and override a finalizer below.95 // TODO: set large fields to null.96 disposedValue = true;97 }98 }99 // TODO: override a finalizer only if Dispose(bool disposing) above has code to free unmanaged resources.100 ~PuppeteerBrowser()101 {102 // Do not change this code. Put cleanup code in Dispose(bool disposing) above.103 Dispose(false);104 }105 // This code added to correctly implement the disposable pattern.106 public void Dispose()107 {108 // Do not change this code. Put cleanup code in Dispose(bool disposing) above.109 Dispose(true);110 // TODO: uncomment the following line if the finalizer is overridden above.111 GC.SuppressFinalize(this);112 }113 #endregion114 }115}...

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PuppeteerSharpRepoSpecs.cs

Source:PuppeteerSharpRepoSpecs.cs Github

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...15 {16 Headless = true17 }).Await();18 };19 Cleanup after = () => Browser.CloseAsync().Await();20 class When_searching_for_the_repo_on_GitHub21 {22 It should_be_the_first_search_result = () =>23 {24 Page page = Browser.NewPageAsync().Await();25 page.GoToAsync("https://github.com/").Await();26 page.QuerySelectorAsync("h1").ShouldHaveContent("Where the world builds software");27 ElementHandle input = page.QuerySelectorAsync("input.header-search-input").Await();28 if (input.IsHidden()) page.ClickAsync(".octicon-three-bars").Await();29 page.TypeAsync("input.header-search-input", "Puppeteer Sharp").Await();30 page.Keyboard.PressAsync("Enter").Await();31 page.WaitForNavigationAsync().Await();32 ElementHandle[] repositories = page.QuerySelectorAllAsync(".repo-list-item").Await();33 repositories.Length.ShouldBeGreaterThan(0);...

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PuppeteerSharpRepoTests.cs

Source:PuppeteerSharpRepoTests.cs Github

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...17 {18 Headless = true19 });20 }21 [TestCleanup]22 public async Task TestCleanup()23 {24 await Browser.CloseAsync();25 }26 [TestMethod]27 public async Task Should_be_first_search_result_on_GitHub()28 {29 var page = await Browser.NewPageAsync();30 await page.GoToAsync("https://github.com/");31 var h1 = await page.QuerySelectorAsync("h1");32 await h1.ShouldHaveContentAsync("Where the world builds software");33 var input = await page.QuerySelectorAsync("input.header-search-input");34 if (await input.IsHiddenAsync()) await page.ClickAsync(".octicon-three-bars");35 await page.TypeAsync("input.header-search-input", "Puppeteer Sharp");36 await page.Keyboard.PressAsync("Enter");...

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BaseUIFixture.cs

Source:BaseUIFixture.cs Github

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1using FluentAssertions;2using Microsoft.Extensions.Hosting;3using Newtonsoft.Json;4using Newtonsoft.Json.Linq;5using NUnit.Framework;6using NUnit.Framework.Internal;7using PuppeteerSharp;8using PuppeteerSharp.Input;9using System;10using System.Collections.Generic;11using System.IO;12using System.Linq;13using System.Text;14using System.Threading;15using System.Threading.Tasks;16namespace E13.Common.Nunit.UI17{18 public abstract class BaseUIFixture : LaunchSettingsFixture, IDisposable19 {20 protected static readonly bool InMemory = Environment.GetEnvironmentVariable("InMemory").DefaultParse(false);21 protected static readonly string TestGoodUserName = Environment.GetEnvironmentVariable("TestGoodUserName");22 protected static readonly string TestDisabledUserName = Environment.GetEnvironmentVariable("TestDisabledUserName");23 protected static readonly string TestInvalidUserName = Environment.GetEnvironmentVariable("TestInvalidUserName");24 protected static readonly string TestPassword = Environment.GetEnvironmentVariable("TestPassword");25 private readonly CancellationTokenSource CancelSource;26 private readonly Func<IHostBuilder> BuilderFunc;27 private readonly int PageWidth;28 private readonly int PageHeight;29 protected Browser Browser { get; set; }30 protected Page Page { get; set; }31 protected BaseUIFixture(int w, int h, Func<IHostBuilder> builderFunc)32 {33 PageWidth = w;34 PageHeight = h;35 BuilderFunc = builderFunc;36 CancelSource = new CancellationTokenSource();37 }38 [SetUp]39 public void SetUp()40 {41 // print out the directory the screens are saved to for ease of navigating locally42 WriteLine($"Screens Directory: {PageExtensions.ScreensDirectory}");43 }44 [OneTimeSetUp]45 public void OneTimeSetUp()46 {47 // Init the InMemory server if required48 49 if (InMemory)50 BuilderFunc().RunConsoleAsync(CancelSource.Token);51 new BrowserFetcher().DownloadAsync(BrowserFetcher.DefaultChromiumRevision).Wait();52 Browser = Puppeteer.LaunchAsync(new LaunchOptions53 {54 Headless = true,55 IgnoreHTTPSErrors = true,56 }).Result;57 Page = Browser.NewPageAsync().Result;58 Page.SetViewportAsync(new ViewPortOptions { Width = PageWidth, Height = PageHeight });59 }60 protected static void WriteLine(string s) 61 => TestContext.WriteLine(s);62 #region IDisposable Support63 private bool disposedValue = false; // To detect redundant calls64 protected virtual void Dispose(bool disposing)65 {66 if (!disposedValue)67 {68 if (disposing)69 {70 Browser.CloseAsync().Wait();71 CancelSource.Cancel();72 CancelSource.Dispose();73 }74 // TODO: free unmanaged resources (unmanaged objects) and override a finalizer below.75 // TODO: set large fields to null.76 disposedValue = true;77 }78 }79 [OneTimeTearDown]80 // This code added to correctly implement the disposable pattern.81 public void Dispose()82 {83 // Do not change this code. Put cleanup code in Dispose(bool disposing) above.84 Dispose(true);85 GC.SuppressFinalize(this);86 }87 #endregion88 }89}...

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PdfGenerator.cs

Source:PdfGenerator.cs Github

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1using System;2using System.Threading.Tasks;3using Microsoft.Extensions.Logging;4using PuppeteerSharp;5namespace EMBC.PDFGenerator.Utilities.PdfGenerator6{7 public interface IPdfGenerator : IDisposable8 {9 public Task<byte[]> Generate(string source);10 }11 public class PdfGenerator : IPdfGenerator, IDisposable12 {13 private readonly RevisionInfo puppeteerInfo;14 private readonly ILogger<PdfGenerator> logger;15 private readonly Browser browser;16 private bool disposedValue;17 public PdfGenerator(RevisionInfo puppeteerInfo, ILogger<PdfGenerator> logger)18 {19 this.puppeteerInfo = puppeteerInfo;20 this.logger = logger;21 logger.LogInformation("Using Puppeteer from {0}", puppeteerInfo.ExecutablePath);22 browser = Puppeteer.LaunchAsync(new LaunchOptions23 {24 Headless = true,25 ExecutablePath = puppeteerInfo.ExecutablePath,26 Args = new[] { "--disable-dev-shm-usage", "--no-sandbox", "--no-first-run", "--disable-gpu", "--disable-setuid-sandbox", "--disable-accelerated-2d-canvas", "--no-zygote" },27 Timeout = TimeSpan.FromSeconds(10).Milliseconds,28 LogProcess = true,29 DumpIO = true,30 }).GetAwaiter().GetResult();31 logger.LogInformation("Created Puppeteer browser version {0}", browser.GetVersionAsync().GetAwaiter().GetResult());32 }33 public async Task<byte[]> Generate(string source)34 {35 using var page = await browser.NewPageAsync();36 logger.LogInformation("Created Puppeteer page");37 await page.SetContentAsync(source);38 var content = await page.PdfDataAsync(new PdfOptions { PrintBackground = true });39 logger.LogInformation("Generated pdf with size {0}", content.Length);40 await page.CloseAsync();41 return content;42 }43 protected virtual void Dispose(bool disposing)44 {45 if (!disposedValue)46 {47 if (disposing)48 {49 // TODO: dispose managed state (managed objects)50 browser.Dispose();51 logger.LogInformation("Browser closed");52 }53 // TODO: free unmanaged resources (unmanaged objects) and override finalizer54 // TODO: set large fields to null55 disposedValue = true;56 }57 }58 // // TODO: override finalizer only if 'Dispose(bool disposing)' has code to free unmanaged resources59 // ~PdfGenerator()60 // {61 // // Do not change this code. Put cleanup code in 'Dispose(bool disposing)' method62 // Dispose(disposing: false);63 // }64 public void Dispose()65 {66 // Do not change this code. Put cleanup code in 'Dispose(bool disposing)' method67 Dispose(disposing: true);68 GC.SuppressFinalize(this);69 }70 }71}...

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AbstractScraper.cs

Source:AbstractScraper.cs Github

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1using PuppeteerSharp;2using System;3using System.Collections.Generic;4using System.Threading.Tasks;5namespace KenshiScraper6{7 abstract class AbstractScraper : IDisposable8 {9 protected Browser browser;10 protected Page page;11 public async Task DownloadChromium()12 {13 var fetcher = new BrowserFetcher();14 await fetcher.DownloadAsync();15 }16 public abstract Task<IEnumerable<Article>> ScrapeAsync(IEnumerable<Article> articles);17 protected async Task Initialize()18 {19 if (browser == null || page == null)20 {21 await DownloadChromium();22 browser = await Puppeteer.LaunchAsync(new LaunchOptions() { Headless = false });23 var pages = await browser.PagesAsync();24 page = pages[0];25 }26 }27 protected async Task<string> ExtractPropertyAsync(ElementHandle handle, string nodeProperty)28 {29 return await handle.EvaluateFunctionAsync<string>($"t => t.{nodeProperty}");30 }31 protected async Task<string> ExtractPropertyAsync(ElementHandle handle, string cssSelector, string nodeProperty)32 {33 var queried = await handle.QuerySelectorAsync(cssSelector);34 return await ExtractPropertyAsync(queried, nodeProperty);35 }36 #region IDisposable Support37 private bool disposedValue = false; // To detect redundant calls38 protected virtual void Dispose(bool disposing)39 {40 if (!disposedValue)41 {42 if (disposing)43 {44 // TODO: dispose managed state (managed objects).45 }46 page.Dispose();47 browser.Dispose();48 disposedValue = true;49 }50 }51 // TODO: override a finalizer only if Dispose(bool disposing) above has code to free unmanaged resources.52 // ~AbstractScraper()53 // {54 // // Do not change this code. Put cleanup code in Dispose(bool disposing) above.55 // Dispose(false);56 // }57 // This code added to correctly implement the disposable pattern.58 public void Dispose()59 {60 // Do not change this code. Put cleanup code in Dispose(bool disposing) above.61 Dispose(true);62 // TODO: uncomment the following line if the finalizer is overridden above.63 // GC.SuppressFinalize(this);64 }65 #endregion66 }67}...

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BasicScreenshot.cs

Source:BasicScreenshot.cs Github

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...27 await page.ScreenshotAsync($"{screenshotDir}/tmp_screenshot.png").ConfigureAwait(false);28 Console.WriteLine("Screenshot grabbed!");29 return $"{screenshotDir}/tmp_screenshot.png";30 }31 public async Task Cleanup(Page page)32 {33 if (page == null) throw new ArgumentNullException(nameof(page), "No chromium instance passed");34 await page.CloseAsync().ConfigureAwait(false);35 if (File.Exists($"{screenshotDir}/tmp_screenshot.png")) File.Delete($"{screenshotDir}/tmp_screenshot.png");36 Console.WriteLine("Temporary files wiped. Page destroyed.");37 }38 }39}...

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Cleanup

Using AI Code Generation

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1using System;2using System.Threading.Tasks;3using PuppeteerSharp;4{5 {6 static async Task Main(string[] args)7 {

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Cleanup

Using AI Code Generation

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1using System;2using System.Threading.Tasks;3using PuppeteerSharp;4{5 {6 static async Task Main(string[] args)7 {8 {9 };10 using (var browser = await Puppeteer.LaunchAsync(options))11 {12 using (var page = await browser.NewPageAsync())13 {14 await page.ScreenshotAsync("google.png");15 }16 }17 }18 }19}20using System;21using System.Threading.Tasks;22using PuppeteerSharp;23{24 {25 static async Task Main(string[] args)26 {27 {28 };29 using (var browser = await Puppeteer.LaunchAsync(options))30 {31 using (var page = await browser.NewPageAsync())32 {33 await page.ScreenshotAsync("google.png");34 }35 }36 }37 }38}39using System;40using System.Threading.Tasks;41using PuppeteerSharp;42{43 {44 static async Task Main(string[] args)45 {46 {47 };48 using (var browser = await Puppeteer.LaunchAsync(options))49 {50 using (var page = await browser.NewPageAsync())51 {52 await page.ScreenshotAsync("google.png");53 }54 }55 }56 }57}58using System;59using System.Threading.Tasks;60using PuppeteerSharp;61{62 {63 static async Task Main(string[] args)64 {65 {66 };67 using (var browser = await Puppeteer.LaunchAsync(options))68 {69 using (var page = await browser.NewPageAsync())70 {71 await page.GoToAsync("https

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Cleanup

Using AI Code Generation

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1var browser = await Puppeteer.LaunchAsync(new LaunchOptions2 {3 Args = new string[] { "--no-sandbox" }4 });5 var page = await browser.NewPageAsync();6 await page.ScreenshotAsync("google.png");7 await page.CleanupAsync();8var browser = await Puppeteer.LaunchAsync(new LaunchOptions9 {10 Args = new string[] { "--no-sandbox" }11 });12 var page = await browser.NewPageAsync();13 await page.ScreenshotAsync("google.png");14 await page.CloseAsync();15var browser = await Puppeteer.LaunchAsync(new LaunchOptions16 {17 Args = new string[] { "--no-sandbox" }18 });19 var page = await browser.NewPageAsync();20 await page.ScreenshotAsync("google.png");21 await browser.CloseAsync();22var browser = await Puppeteer.LaunchAsync(new LaunchOptions23 {24 Args = new string[] { "--no-sandbox" }25 });26 var page = await browser.NewPageAsync();27 await page.ScreenshotAsync("google.png");28 await browser.DisposeAsync();29var browser = await Puppeteer.LaunchAsync(new LaunchOptions30 {31 Args = new string[] { "--no-sandbox" }32 });33 var page = await browser.NewPageAsync();34 await page.ScreenshotAsync("google.png");35 await page.DisposeAsync();36var browserFetcher = new BrowserFetcher();

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Cleanup

Using AI Code Generation

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1var page = await browser.NewPageAsync();2await page.CleanupAsync();3var page = await browser.NewPageAsync();4await page.CleanupAsync();5var page = await browser.NewPageAsync();6await page.CleanupAsync();7var page = await browser.NewPageAsync();8await page.CleanupAsync();9var page = await browser.NewPageAsync();10await page.CleanupAsync();11var page = await browser.NewPageAsync();12await page.CleanupAsync();13var page = await browser.NewPageAsync();14await page.CleanupAsync();15var page = await browser.NewPageAsync();16await page.CleanupAsync();17var page = await browser.NewPageAsync();18await page.CleanupAsync();19var page = await browser.NewPageAsync();20await page.CleanupAsync();21var page = await browser.NewPageAsync();22await page.CleanupAsync();

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Cleanup

Using AI Code Generation

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1var page = await browser.NewPageAsync();2await page.CleanupAsync();3await browser.CloseAsync();4var page = await browser.NewPageAsync();5await page.CleanupAsync();6await browser.CloseAsync();7var page = await browser.NewPageAsync();8await page.CleanupAsync();9await browser.CloseAsync();10var page = await browser.NewPageAsync();11await page.CleanupAsync();12await browser.CloseAsync();13var page = await browser.NewPageAsync();14await page.CleanupAsync();15await browser.CloseAsync();16var page = await browser.NewPageAsync();17await page.CleanupAsync();18await browser.CloseAsync();19var page = await browser.NewPageAsync();20await page.CleanupAsync();21await browser.CloseAsync();22var page = await browser.NewPageAsync();23await page.CleanupAsync();24await browser.CloseAsync();25var page = await browser.NewPageAsync();26await page.CleanupAsync();27await browser.CloseAsync();28var page = await browser.NewPageAsync();29await page.CleanupAsync();

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