code: def test_format_goal(self, metric_direction, expected_goal):
      goal = utils.format_goal(metric_direction)
      self.assertEqual(goal, expected_goal)
  
imports: import copy
  from absl.testing import parameterized
  from keras_tuner.engine import hyperparameters
  from keras_tuner.engine import oracle
  from keras_tuner.engine import trial
  import tensorflow
  from tensorboard.plugins.hparams import api
  from tensorflow_cloud.tuner.tuner import utils
label_desc: Use image node_id 19 for calling the CloudTunerUtilsTest obj's underlying member method code with example usage: obj.test_format_goal(metric_direction, expected_goal) without return types