Set the primary_metric_goal of the estimator used to run the bird_classifier_train.py script to maximize.

Add code to the bird_classifier_train.py script to calculate the validation loss of the model and log it as a float value with the key loss.

Set the primary_metric_goal of the estimator used to run the bird_classifier_train.py script to minimize.

Set the primary_metric_name of the estimator used to run the bird_classifier_train.py script to accuracy.

Set the primary_metric_name of the estimator used to run the bird_classifier_train.py script to loss.

Add code to the bird_classifier_train.py script to calculate the validation accuracy of the model and log it as a float value with the key accuracy.