Output features of honest CT

[ZeyuJin]

Hi,

I met the problem of outputting the feature structure of the causal tree. I used the binary example from this repository.

When I tried to print out features using the "get_features" function, it prints all empty values for the first time. However, it prints out strange values when I call both "get_features" and "get_features_used" at the same time.

Would you please tell me how to fix the bug and output the correct structure of the causal tree?

By the way, how do I output the MSE or SMAPE values on the test dataset? Because I would like to tune some hyper-parameters in order to validate the model.

Thanks,