message: specify defaults for attributes of Affine op
diff: @@ -25,8 +25,8 @@ Affine takes one input data (Tensor<T>) and produces one output data
  (Tensor<T>) where the affine function, y = alpha * x + beta,
  is applied to the tensor elementwise.
  )DOC")
  - .Attr("alpha", "Value of alpha", AttributeProto::FLOAT, OPTIONAL)
  - .Attr("beta" , "Value of beta", AttributeProto::FLOAT, OPTIONAL)
  + .Attr("alpha", "Value of alpha", AttributeProto::FLOAT, 1.0f)
  + .Attr("beta" , "Value of beta", AttributeProto::FLOAT, 0.0f)
  .Input(0, "X", "1D input tensor", "T")
  .Output(0, "Y", "1D output tensor", "T")
  .TypeConstraint("T", { "tensor(float16)", "tensor(float)", "tensor(double)" },
  