code: def addSuccess(self, test):
      self._add_result(test)
      super().addSuccess(test)
  
imports: import functools
  import io
  import sys
  import time
  import traceback
  import unittest
  from test import support
label_desc: Use image node_id 10 for calling the RegressionTestResult obj's underlying member method code with example usage: obj.addSuccess(test) without return types