namespace Azure.Storage { internal static class StreamExtensions { public static Stream WithNoDispose(this Stream stream); public static long? GetLengthOrDefault(this Stream content); public static Task<int> ReadInternal(this Stream stream, byte[] buffer, int offset, int count, bool async, CancellationToken cancellationToken); public static Task WriteInternal(this Stream stream, byte[] buffer, int offset, int count, bool async, CancellationToken cancellationToken); public static Task CopyToInternal(this Stream src, Stream dest, bool async, CancellationToken cancellationToken); public static Task CopyToInternal(this Stream src, Stream dest, int bufferSize, bool async, CancellationToken cancellationToken); } }