What's Changed
* fixes flake8 issues by pavel-gavrilov-tune-the-model in https://github.com/tune-the-model/tune-the-model-py/pull/44
* added fitting log by yakar-pev in https://github.com/tune-the-model/tune-the-model-py/pull/37
* uploads files to s3 by pavel-gavrilov-tune-the-model in https://github.com/tune-the-model/tune-the-model-py/pull/47
**Full Changelog**: https://github.com/tune-the-model/tune-the-model-py/compare/v0.1.20...v0.1.21