code: def setUp(self) -> None:
      pass
  
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 1 for calling the MetricTest obj's underlying member method code with example usage: obj.setUp() without return types