[{'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.neighbors import KNeighborsClassifier\n\nneigh = KNeighborsClassifier()\nneigh.fit(X_train_scal, Y_train)\n\nKnn_y_pred_train =  neigh.predict(X_train_scal)\nKnn_y_pred_test =  neigh.predict(X_test_scal)\n\nscores_kn = cross_val_score(estimator = neigh, y = Y_train, X = X_train_scal, cv=5)\nprint('Cross Validation Score:', np.mean(scores_kn))"}, {'role': 'assistant', 'content': 'modelling'}]