| FlushAsync | Asynchronously clears all buffers for the current writer and causes any buffered data to be written to the underlying device. |
| FlushAsync(CancellationToken) | Asynchronously clears all buffers for the current writer and causes any buffered data to be written to the underlying device. |
| FlushAsync(Boolean, CancellationToken) | Clears all buffers for this TextWriter and causes any buffered data to be written to the underlying writer, optionally inserting an additional new line. |