code: def testGraphTraversal_SameArtifactType(self):
      result = self._graph_traversal(
          self.examples[0],
          traverse_upstream=False,
          artifact_type_names=[
              "Examples",
          ],
      )
      self.assertArtifactMapsEqual(
          result,
          {
              "root_artifact": [self.examples[0]],
              "Examples": [self.examples[0]],
          },
      )
  
file_path: tfx/tfx/dsl/input_resolution/ops/graph_traversal_op_test.py
imports: from typing import Sequence
  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 9 for calling the GraphTraversalOpTest obj's underlying member method code with example usage: obj.testGraphTraversal_SameArtifactType() without return types