After review comments

Author: hansthen

Lib/argparse.py

@@ -1777,7 +1777,7 @@ class ArgumentParser(_AttributeHolder, _ActionsContainer):
             error info when an error occurs
         - suggest_on_error - Enables suggestions for mistyped argument choices
             and subparser names. (default: ``False``)
-        - convert_choices - Runs the ``choices`` through the ``type`` function
+        - convert_choices - Runs the ``choices`` through the ``type`` callable
             during checking. (default: ``False``)
     """