tox
coverage increased a bit, before:
```
TOTAL 3104 129 546 50 94%
====================================================================================================== 141 passed, 8 warnings in 22.13s =======================================================================================================
```
after:
```
====================================================================================================== 138 passed, 8 warnings in 22.04s =======================================================================================================
TOTAL 2976 92 520 49 96%
```