namespace System.IO.Internal { internal sealed class TempFileCollection : ICollection, IEnumerable, IDisposable { public int Count { get; } public string TempDir { get; } public string BasePath { get; } public bool KeepFiles { get; set; } public TempFileCollection(); public TempFileCollection(string tempDir); public TempFileCollection(string tempDir, bool keepFiles); public string AddExtension(string fileExtension); public string AddExtension(string fileExtension, bool keepFile); public void AddFile(string fileName, bool keepFile); public IEnumerator GetEnumerator(); public void CopyTo(string[] fileNames, int start); public void Delete(); } }