TfLiteStatus Eval(TfLiteContext* context, TfLiteNode* node) {
  const TfLiteTensor* input;
  TF_LITE_ENSURE_OK(context, GetInputSafe(context, node, kInputTensor, &input));

  switch (input->type) {  // Already know in/out types are same.
    case kTfLiteFloat32:
      return EvalImpl<kernel_type, kTfLiteFloat32>(context, node);
    case kTfLiteUInt8:
      return EvalImpl<kernel_type, kTfLiteUInt8>(context, node);
    case kTfLiteInt8:
      return EvalImpl<kernel_type, kTfLiteInt8>(context, node);
    case kTfLiteInt16:
      return EvalImpl<kernel_type, kTfLiteInt16>(context, node);
    default:
      context->ReportError(context, "Type %d not currently supported.",
                           input->type);
      return kTfLiteError;
  }
}