nirum-lang
diff --git a/‎CHANGES.rst
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diff --git a/‎nirum/deserialize.py
Lines changed: 0 additions & 324 deletions b/‎nirum/deserialize.py
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@@ -19,6 +19,14 @@ To be released.
   every generated union classes (see also the `pull request`__),
   ``nirum.deserialize.deserialize_union_type()`` function also became to
   lerverage it if present.
+- Removed unmaintained below codes. Now these will be generated by Nirum, 
+  automatically.
+  - nirum/deserialize.py
+  - nirum/serialize.py
+  - nirum/validate.py
+  - tests/deserialize_test.py
+  - tests/serialize_test.py
+  - tests/validate_test.py
 
 __ https://github.com/spoqa/nirum/pull/192
 __ https://github.com/spoqa/nirum/pull/192