code: def test_get_region(self):
      assert gcp.get_region() == "us-central1"
  
file_path: cloud/src/python/tensorflow_cloud/core/tests/unit/gcp_test.py
imports: from absl.testing import absltest
  from tensorflow_cloud.core import gcp
  from tensorflow_cloud.core import machine_config
label_desc: Use image node_id 1 for calling the TestGcp obj's underlying member method code with example usage: obj.test_get_region() without return types