[{'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:plt.figure\nfig, axes = plt.subplots(1, 2)\nfor est, ax in [(knn, axes[0]), (nc, axes[1])]:\nax.scatter(X[:, 0], X[:, 1], c=y, edgecolor=\'k\')\nax.set_title(est.__class__.__name__)\nplot_2d_classification(est, X, alpha=.5, ax=ax)\nax.set_aspect("equal")'}, {'role': 'assistant', 'content': 'result_visualization'}]