/// <summary>Asynchronously reads the given number of bytes from the source stream and writes them to another stream, using a specified buffer size.</summary> /// <returns>A task that represents the asynchronous copy operation.</returns> /// <param name="source">The stream from which the contents will be copied.</param> /// <param name="destination">The stream to which the contents of the current stream will be copied.</param> /// <param name="count">The count of bytes to be copied.</param> /// <param name="bufferSize">The size, in bytes, of the buffer. This value must be greater than zero. The default size is 4096.</param> /// <param name="cancel">The token to monitor for cancellation requests. The default value is <see cref="P:System.Threading.CancellationToken.None" />.</param> public static Task CopyToAsync(Stream source, Stream destination, long?count, int bufferSize, CancellationToken cancel) => StreamCopyOperationInternal.CopyToAsync(source, destination, count, bufferSize, cancel);
