API refactor

venv/lib/python3.12/site-packages/kafka/metrics/stat.py

@@ -2,14 +2,15 @@ from __future__ import absolute_import
 
 import abc
 
+from kafka.vendor.six import add_metaclass
 
+
+@add_metaclass(abc.ABCMeta)
 class AbstractStat(object):
     """
     An AbstractStat is a quantity such as average, max, etc that is computed
     off the stream of updates to a sensor
     """
-    __metaclass__ = abc.ABCMeta
-
     @abc.abstractmethod
     def record(self, config, value, time_ms):
         """