// Creates an operation builder and ties it to this context.
  // The returned object can be used for setting operation's attributes,
  // adding inputs and finally executing (immediately or lazily as in tracing)
  // it in this context.
  virtual AbstractOperation* CreateOperation() = 0;

  // Registers a function with this context, after this the function is
  // available to be called/referenced by its name in this context.

pilot:
  env:
    # 1.22 behavioral changes
    ENABLE_RESOLUTION_NONE_TARGET_PORT: "false"
meshConfig:
  # 1.22 behavioral changes
  proxyMetadata:
    ISTIO_DELTA_XDS: "false"
  defaultConfig:
    tracing:
      zipkin:

pilot:
  env:
    # 1.22 behavioral changes
    ENABLE_RESOLUTION_NONE_TARGET_PORT: "false"
meshConfig:
  # 1.22 behavioral changes
  proxyMetadata:
    ISTIO_DELTA_XDS: "false"
  defaultConfig:
    tracing:
      zipkin:

                             std::vector<AbstractTensorHandle*>* params) {
  tracing::TracingTensorHandle* handle = nullptr;
  for (auto input : inputs) {
    PartialTensorShape shape;
    TF_RETURN_IF_ERROR(input->Shape(&shape));
    TF_RETURN_IF_ERROR(dyn_cast<tracing::TracingContext>(ctx)->AddParameter(
        input->DataType(), shape, &handle));
    params->emplace_back(handle);
  }

    # 1.22 behavioral changes
    ENABLE_RESOLUTION_NONE_TARGET_PORT: "false"

meshConfig:
  # 1.22 behavioral changes
  defaultConfig:
    proxyMetadata:
      ISTIO_DELTA_XDS: "false"
    tracing:
      zipkin:

    # 1.22 behavioral changes
    ENABLE_RESOLUTION_NONE_TARGET_PORT: "false"

meshConfig:
  # 1.22 behavioral changes
  defaultConfig:
    proxyMetadata:
      ISTIO_DELTA_XDS: "false"
    tracing:
      zipkin:

  return new GraphContext(name);
}

// Register the tracing implemented in this file as the default tracing engine.
static bool register_tracing = [] {
  RegisterTracingEngineFactory("graphdef", GraphTracingFactory);
  SetDefaultTracingEngine("graphdef").IgnoreError();
  return true;
}();

}  // namespace graph
}  // namespace tracing

meshConfig:
  defaultConfig:
    tracing:
      zipkin:

meshConfig:
  defaultConfig:
    tracing:
      zipkin:

 *       under all environments. We could fight this by fully qualifying the annotation, but the
 *       result will be verbose and attention-grabbing.
 *   <li>We need to be careful about how we suppress {@code suite()} methods in {@code common.io}.
 *       The generated suite for {@code FooTest} ends up containing {@code FooTest} itself plus some