CHECK(tensorflow::unwrap(concatOp)->OpDef());
  TFE_OpAddInput(concatOp, inputs[0], status);
  CHECK_EQ(TF_OK, TF_GetCode(status)) << TF_Message(status);
  EXPECT_FALSE(tensorflow::unwrap(concatOp)->OpDef())
      << "Inference context is still present";
  TFE_OpAddInput(concatOp, inputs[1], status);
  CHECK_EQ(TF_OK, TF_GetCode(status)) << TF_Message(status);

  tensorflow::AttrValueMap attr_values = ExtractAttrs(concatOp);

- Introduced the Node Declared Features capability (alpha), which includes:
  - A new `Node.Status.DeclaredFeatures` field for publishing node-specific features.
  - A `component-helpers` library for feature registration and inference.
  - A `NodeDeclaredFeatures` scheduler plugin to match pods with nodes that provide required features.