🌐 [i18n-KO] Translated package_reference/mixins.md to Korean (#2166)

* docs: ko: package_reference/mixins.md

* feat: nmt draft

* fix: manual edits

* fix: resolve suggestions

* fix: resolve suggestions

Co-authored-by: Chulhwa (Evan) Han <cjfghk5697@ajou.ac.kr>

* fix: resolve suggestions

Co-authored-by: Seoyoung Kim <79852630+seoyoung-3060@users.noreply.github.com>

* fix: resolve suggestions

---------

Co-authored-by: Chulhwa (Evan) Han <cjfghk5697@ajou.ac.kr>
Co-authored-by: Seoyoung Kim <79852630+seoyoung-3060@users.noreply.github.com>
Co-authored-by: Lucain <lucainp@gmail.com>

docs/source/ko/_toctree.yml

@@ -54,8 +54,8 @@
       title: 허깅페이스 Hub API
     - local: package_reference/file_download
       title: 파일 다운로드하기
-    - local: in_translation
-      title: (번역 중) Mixins & serialization methods
+    - local: package_reference/mixins
+      title: 믹스인 & 직렬화 메소드
     - local: package_reference/inference_types
       title: 추론 타입
     - local: package_reference/inference_client

docs/source/ko/package_reference/mixins.md

@@ -0,0 +1,37 @@
+<!--⚠️ Note that this file is in Markdown but contain specific syntax for our doc-builder (similar to MDX) that may not be
+rendered properly in your Markdown viewer.
+-->
+
+# 믹스인 & 직렬화 메소드[[mixins--serialization-methods]]
+
+## 믹스인[[mixins]]
+
+`huggingface_hub` 라이브러리는 객체에 함수들의 업로드 및 다운로드 기능을 손쉽게 제공하기 위해서, 부모 클래스로 사용될 수 있는 다양한 믹스인을 제공합니다.
+ML 프레임워크를 Hub와 통합하는 방법은 [통합 가이드](../guides/integrations)를 통해 배울 수 있습니다.
+
+### 제네릭[[huggingface_hub.ModelHubMixin]]
+
+[[autodoc]] ModelHubMixin
+    - all
+    - _save_pretrained
+    - _from_pretrained
+
+### PyTorch[[huggingface_hub.PyTorchModelHubMixin]]
+
+[[autodoc]] PyTorchModelHubMixin
+
+### Keras[[huggingface_hub.KerasModelHubMixin]]
+
+[[autodoc]] KerasModelHubMixin
+
+[[autodoc]] from_pretrained_keras
+
+[[autodoc]] push_to_hub_keras
+
+[[autodoc]] save_pretrained_keras
+
+### Fastai[[huggingface_hub.from_pretrained_fastai]]
+
+[[autodoc]] from_pretrained_fastai
+
+[[autodoc]] push_to_hub_fastai