* 🌐 Add Japanese translation for `docs/ja/docs/tutorial/response-model.md`. PR [#1938](https://github.com/tiangolo/fastapi/pull/1938) by [@SwftAlpc](https://github.com/SwftAlpc).
* 🌐 Add Japanese translation for `docs/ja/docs/tutorial/body-multiple-params.md`. PR [#1903](https://github.com/tiangolo/fastapi/pull/1903) by [@SwftAlpc](https://github.com/SwftAlpc).
* 🌐 Add Japanese translation for `docs/ja/docs/tutorial/path-params-numeric-validations.md`. PR [#1902](https://github.com/tiangolo/fastapi/pull/1902) by [@SwftAlpc](https://github.com/SwftAlpc).
* 🌐 Add Japanese translation for `docs/ja/docs/python-types.md`. PR [#1899](https://github.com/tiangolo/fastapi/pull/1899) by [@SwftAlpc](https://github.com/SwftAlpc).