[{'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.linear_model import (\n    ElasticNet,\n    ElasticNetCV,\n    Lasso,\n    LassoCV,\n    LinearRegression,\n    LogisticRegression,\n    Ridge,\n)\n\nfrom sklearn.ensemble import (\n    AdaBoostClassifier,\n    GradientBoostingClassifier,\n    GradientBoostingRegressor,\n    RandomForestClassifier,\n    RandomForestRegressor,\n    VotingClassifier,\n)\n\nfrom sklearn.model_selection import (\n    GridSearchCV,\n    KFold,\n    RandomizedSearchCV,\n    cross_val_score,\n    train_test_split,\n)'}, {'role': 'assistant', 'content': 'helper_functions'}]