enable mypy --check-untyped-defs

pymodbus/diag_message.py

@@ -382,7 +382,7 @@ def execute(self, *args):
 
         :returns: The initialized response message
         """
-        char = (self.message & 0xFF00) >> 8
+        char = (self.message & 0xFF00) >> 8  # type: ignore[operator]
         _MCB._setDelimiter(char)  # pylint: disable=protected-access
         return ChangeAsciiInputDelimiterResponse(self.message)
 

pymodbus/transaction.py

@@ -241,7 +241,7 @@ def execute(self, request):  # noqa: C901
                                 "/Unable to decode response"
                             )
                             response = ModbusIOException(
-                                last_exception, request.function_code
+                                last_exception, request.function_code  # type: ignore[assignment]
                             )
                         self.client.close()
                     if hasattr(self.client, "state"):

pyproject.toml

@@ -198,6 +198,7 @@ strict_concatenate = false
 disallow_subclassing_any = true
 disallow_untyped_decorators = true
 warn_unreachable = true
+check_untyped_defs = true
 
 [tool.distutils]
 bdist_wheel = {}