Fix
* **class:** Remove unused variable ([`dedd412`](https://github.com/JackTheMico/ruia-peewee-async/commit/dedd4128cebd435748a79edf8f0e508078c4945a))
* **class:** Fix Codecov uncovered code ([`1920549`](https://github.com/JackTheMico/ruia-peewee-async/commit/19205495f98bc19fdff3053c3f07276e3f2f1278))
* **class:** Fix 17 issue ([`21e7dc9`](https://github.com/JackTheMico/ruia-peewee-async/commit/21e7dc918092ea1ce7d2300a6b16a257c641a7ef))