'Calls self.model.predict for the provided exog.  See
Results.predict.
Parameters
exog : array-like NOT optional
The values for which we want to predict, unlike standard
predict this is NOT optional since the data in self.model
is fake.
args, kwargs :
Some models can take additional arguments or keywords, see the
predict method of the model for the details.
Returns
prediction : ndarray, pandas.Series or pandas.DataFrame
See self.model.predict'

def predict(self, exog, *args, **kwargs):

    return self.model.predict(self.params, exog, *args, **kwargs)
