message: switched to use scalar shape function
diff: @@ -20,8 +20,7 @@ limitations under the License.
  static void scalar_summary_shape_inference_fn(TF_ShapeInferenceContext* ctx,
  TF_Status* status) {
  TF_SetStatus(status, TF_OK, "");
  - TF_ShapeHandle* result = TF_NewShapeHandle();
  - // Make shape handle a scalar value (empty shape)
  + TF_ShapeHandle* result = TF_ShapeInferenceContextScalar(ctx);
  TF_ShapeInferenceContextSetOutput(ctx, 0, result, status);
  if (TF_GetCode(status) != TF_OK) {
  TF_SetStatus(status, TF_INVALID_ARGUMENT,
  