[{'role': 'system', 'content': "You are an expert in machine learning and your task is to classify code snippets into one of the following categories: ['helper_functions', 'load_data', 'data_exploration', 'data_preprocessing', 'evaluation', 'modelling', 'prediction', 'result_visualization', 'save_results', 'comment_only']."}, {'role': 'user', 'content': 'Identify the single most appropriate category to which the provided code belongs. Provide your response as a single category label without any additional information, commentary, or personal opinions.\\nPython Code:predict_test_input_fn = lambda: my_input_fn(test_examples, <br>                                                  test_validations["Outcome"], <br>                                                  num_epochs=1, <br>                                                  shuffle=False)<br><br>test_predictions = DNN_classifier.predict(input_fn=predict_test_input_fn)<br>test_predictions = np.array([item[\'probabilities\'][1] for item in test_predictions])<br><br>_ = plt.hist(test_predictions)'}, {'role': 'assistant', 'content': 'evaluation'}]