[{'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:import sklearn\nfrom sklearn.ensemble import AdaBoostClassifier\nfrom sklearn.tree import DecisionTreeClassifier\nAda1 = AdaBoostClassifier(DecisionTreeClassifier(max_depth = 2),\nn_estimators = 100,\nlearning_rate = 0.1)\nclassifiers = [c.fit(_train.values[:,1:-1],\n_train.values[:,-1].astype(int)) \\\nfor c in [Ada1]]\nresults = [c.predict_proba(_validation.values[:,1:-1]) \\\nfor c in classifiers]\nprint(results[0])'}, {'role': 'assistant', 'content': 'modelling'}]