[{'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 RandomForestClassifier\n\nrf = RandomForestClassifier(max_depth = 70)\nrf.fit(filter_X_train, Y_train)\n\nrf_y_pred_train =  rf.predict(filter_X_train)\nrf_y_pred_test =  rf.predict(filter_X_test)\n\nscores_rf = cross_val_score(estimator = rf, y = Y_train, X = filter_X_train, cv=5)\nprint('Cross Validation Score:', np.mean(scores_rf))"}, {'role': 'assistant', 'content': 'modelling'}]