| WriteAsync(ReadOnlyMemoryByte, CancellationToken) | Asynchronously writes a sequence of bytes to the current stream, advances the current position within this stream by the number of bytes written, and monitors cancellation requests. |
| WriteAsync(Byte, Int32, Int32) | Asynchronously writes a sequence of bytes to the current stream and advances the current position within this stream by the number of bytes written. |
| WriteAsync(Byte, Int32, Int32, CancellationToken) | Записывает данные в поток из массива байт. Метод не поддерживается. |