[{'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:# from sklearn.ensemble import RandomForestRegressor\n\n# rfr = RandomForestRegressor(n_estimators=300, criterion='mae', max_depth=12, n_jobs=-1, verbose=True)\n# rfr.fit(X_train.values, np.log(y_train.values) + 1)\n\n# y_hat = rfr.predict(X_test.values)\n# y_hat = np.exp(y_hat) - 1\n\n# print(f'MAE: {mae(y_test, y_hat)}')\n# print(f'RMSPE: {rmspe(y_hat, y_test)}')"}, {'role': 'assistant', 'content': 'helper_functions'}]