| flush_secs | int | The maximum cache time of the data generated before recording in a log file, when this time is reached, the data is immediately written to the log file. |
| filename_suffix | string | Add a suffix to the default log file name. |
| write_to_disk | boolean | Write into disk or not. |
| display_name | string | Set the name of different runs when `logdir` is too long or needed to be hidden. If not set, the default name is `logdir`.|
