->Schedule(execution_fn);
  } else {
    // Otherwise, just run normally: we merely "pretend" to be asynchronous.
    execution_fn();
  }
}

}  // namespace

XlaLocalLaunchBase::XlaLocalLaunchBase(OpKernelConstruction* ctx,
                                       const std::vector<int>& constants,
                                       const std::vector<int>& resources,