A machine learning engineer is training a multivariate regression model to predict house prices. The engineer uses Amazon SageMaker for training the model using TensorFlow custom code. The model takes in 30 features including, but not limited to, “location”, “Home size”, “Condition” and “Age”. The model is about to begin training and could train for a long time. The engineer wants to be alerted via a cell phone (SMS) if the machine learning model overfits during training to take the appropriate measures. How should the alarm be set up?