in entrypoint.py [0:0]
def model_fn(model_dir):
"""Deserialize and return fitted model.
Note that this should have the same name as the serialized model in the _xgb_train method
"""
model_file = 'xgboost-model'
booster = pkl.load(open(os.path.join(model_dir, model_file), 'rb'))
return booster