code: def testLatestVersion_SingleEntry(self):
      a1 = test_utils.DummyArtifact()
      a1.version = 1
  
      actual = self._latest_version([a1])
      self.assertEqual(actual, [a1])
  
file_path: tfx/tfx/dsl/input_resolution/ops/latest_version_op_test.py
imports: import tensorflow
  from tfx import types
  from tfx.dsl.input_resolution.ops import ops
  from tfx.dsl.input_resolution.ops import test_utils
label_desc: Use image node_id 3 for calling the LatestVersionOpTest obj's underlying member method code with example usage: obj.testLatestVersion_SingleEntry() without return types