[{'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:###### uh are the previous submissions formatted incorrectly or something?\n######## checking via baseline submission\nresult = []\nfor index, row in test_users.iterrows():\n    if isinstance(row['date_first_booking'], float):\n        result.append([row['id'], 'NDF'])\n        result.append([row['id'], 'US'])\n        result.append([row['id'], 'other'])\n        result.append([row['id'], 'FR'])\n        result.append([row['id'], 'IT'])\n    else:\n        result.append([row['id'], 'US'])\n        result.append([row['id'], 'other'])\n        result.append([row['id'], 'FR'])\n        result.append([row['id'], 'IT'])\n        result.append([row['id'], 'GB'])\n        \npd.DataFrame(result).to_csv('sub.csv', index = False, header = ['id', 'country'])"}, {'role': 'assistant', 'content': 'save_results'}]