message: _Send traceme should be generated lazily
diff: @@ -182,8 +182,10 @@ Status CopyInputToExpectedDevice(EagerContext* ctx, EagerOperation* op,
  // trigger a copy.
  TensorHandle* result_handle = nullptr;
  profiler::TraceMe activity(
  - absl::StrCat("_Send input ", i, " from ", handle_device->name(), " to ",
  - expected_input_device->name()),
  + [&] {
  + return absl::StrCat("_Send input ", i, " from ", handle_device->name(),
  + " to ", expected_input_device->name());
  + },
  profiler::TraceMeLevel::kInfo);
  Status status =
  EagerCopyToDevice(handle, ctx, &op->Executor(), expected_input_device,
  