code: def probabilistic_case(self):
      MockUnitTest.probabilistic_case_counter += 1
      if MockUnitTest.probabilistic_case_counter % 2 == 0:
          MockUnitTest.probabilistic_case_success_counter += 1
          assert True
      else:
          MockUnitTest.probabilistic_case_failure_counter += 1
          self.fail()
  
imports: import unittest
  from cupy.testing import _condition
label_desc: Use image node_id 6 for calling the MockUnitTest obj's underlying member method code with example usage: obj.probabilistic_case() without return types