What's Changed
* Fix typo in Readme by shyaginuma in https://github.com/shyaginuma/casual_inference/pull/39
* update poetry by shyaginuma in https://github.com/shyaginuma/casual_inference/pull/41
* [bugfix] Make `variant_col` works properly by shyaginuma in https://github.com/shyaginuma/casual_inference/pull/42
**Full Changelog**: https://github.com/shyaginuma/casual_inference/compare/v0.6.1...v0.6.2