message: Both inputs should be in int16 for MUL operator.
  Some networks have one of inputs as a constant.
diff: @@ -807,6 +807,7 @@ OperatorProperty GetOperatorProperty(const ModelT* model, int subgraph_index,
  case BuiltinOperator_MUL:
  property.inputs = {{0, {}}, {1, {}}};
  property.outputs = {{0, {}}};
  + property.quantize_input_as_activations = true;
  property.version = 2;
  break;
  case BuiltinOperator_PACK:
  