[{'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:for workingday in average_workingday_hour.index.levels[0]:\n    #print (year)\n    #print(average_year_month[year])\n    plt.plot(average_workingday_hour[workingday].index,average_workingday_hour[workingday],\n             label=workingday)\n    \nplt.legend()    \nplt.xlabel('Hour')\nplt.ylabel('Count')\nplt.xticks(np.arange(24))\nplt.grid(True)\nplt.title('Average Hourly Rental Count by Working Day')\nplt.show()"}, {'role': 'assistant', 'content': 'result_visualization'}]