diff --git a/cdd/shared/pkg_utils.py b/cdd/shared/pkg_utils.py
index 5a3638ce..99a22505 100644
--- a/cdd/shared/pkg_utils.py
+++ b/cdd/shared/pkg_utils.py
@@ -14,6 +14,9 @@
     from sysconfig import get_python_version
 
     def is_virtual_environment():
+        """
+        Whether one is in a virtual environment
+        """
         return sys.base_prefix != sys.prefix or hasattr(sys, "real_prefix")
 
     def get_python_lib(plat_specific=0, standard_lib=0, prefix=None):
@@ -63,7 +66,7 @@ def get_python_lib(plat_specific=0, standard_lib=0, prefix=None):
         else:
 
             class DistutilsPlatformError(Exception):
-                pass
+                """DistutilsPlatformError"""
 
             raise DistutilsPlatformError(
                 "I don't know where Python installs its library "
diff --git a/cdd/shared/pure_utils.py b/cdd/shared/pure_utils.py
index 7ff8ba9c..9ab565d3 100644
--- a/cdd/shared/pure_utils.py
+++ b/cdd/shared/pure_utils.py
@@ -1216,6 +1216,7 @@ def namespaced_upper_camelcase_to_pascal(s, sep="__"):
     "PY3_8",
     "PY_GTE_3_8",
     "PY_GTE_3_9",
+    "PY_GTE_3_12",
     "SetEncoder",
     "all_dunder_for_module",
     "append_to_dict",
diff --git a/cdd/tests/mocks/fastapi_routes.py b/cdd/tests/mocks/fastapi_routes.py
index 683f7c7b..cb3b54b8 100644
--- a/cdd/tests/mocks/fastapi_routes.py
+++ b/cdd/tests/mocks/fastapi_routes.py
@@ -154,6 +154,7 @@ async def create_config(config: Config):
             ],
         )
     ],
+    type_params=[],
     lineno=None,
     returns=None,
     **maybe_type_comment