def get_all_labels(multi_label_data):
    """Extracts the complete set of labels from the stored multi_label_data.

    """
    new_fields = multi_label_data['generated_fields']
    new_objective_fields = new_fields[
        str(multi_label_data['objective_column'])]
    return [new_field[0] for new_field in new_objective_fields]