@David_Reiss  I error I got is
RuntimeError: No function is registered for schema aten::native_batch_norm(Tensor input, Tensor? weight, Tensor? bias, Tensor? running_mean, Tensor? running_var, bool training, float momentum, float eps) -> (Tensor, Tensor, Tensor) on tensor type QuantizedCPUTensorId; available functions are CPUTensorId, MkldnnCPUTensorId, VariableTensorId

I have followed all the steps correctly but batch normalization is not fusing