code: def test_MetricFetchE(self) -> None:
      def foo() -> bool:
          raise ValueError("bad value")
  
      def bar() -> bool:
          return foo()
  
      exception = None
      try:
          bar()
      except Exception as e:
          exception = e
  
      metric_fetch_e = MetricFetchE(message="foo", exception=exception)
  
      self.assertEqual(metric_fetch_e.message, "foo")
  
      self.assertIn("in foo", metric_fetch_e.__repr__())
      self.assertIn("in bar", metric_fetch_e.__repr__())
      self.assertIn("ValueError: bad value", metric_fetch_e.__repr__())
  
file_path: Ax/ax/core/tests/test_metric.py
imports: from ax.core.metric import Metric, MetricFetchE
  from ax.utils.common.result import Err
  from ax.utils.common.testutils import TestCase
  from ax.utils.testing.core_stubs import get_branin_metric, get_data, get_experiment, get_factorial_metric
label_desc: Use image node_id 8 for calling the MetricTest obj's underlying member method code with example usage: obj.test_MetricFetchE() and returns: foo