Youhei Sakurai b5bcba713d
Apply black to comply with the code style (#557)
Relates https://github.com/elastic/eland/pull/552

**Issue**:

```console
C:\Users\YouheiSakurai\git\myeland>python -m black --version
python -m black, 23.3.0 (compiled: yes)
Python (CPython) 3.11.0

C:\Users\YouheiSakurai\git\myeland>python -m black --check --target-version=py38 bin\eland_import_hub_model
would reformat bin\eland_import_hub_model

Oh no! 💥 💔 💥
1 file would be reformatted.
```

**Solution**:
```
C:\Users\YouheiSakurai\git\myeland>python -m black --target-version=py38 bin\eland_import_hub_model
reformatted bin\eland_import_hub_model

All done!  🍰 
1 file reformatted.
```
2023-07-13 09:55:00 +02:00
..