[{'role': 'system', 'content': "You are an expert in machine learning and your task is to classify the code snippets into categories from the provided list of categories. List of categories: ['helper_functions', 'load_data', 'data_exploration', 'data_preprocessing', 'evaluation', 'modelling', 'prediction', 'result_visualization', 'save_results', 'comment_only']"}, {'role': 'user', 'content': "Identify to which category the provided code belongs and assign the code snippet to at least 1 but up to 5 categories based on the probabilities, ignore if the probability of the category is negligible. Strictly provide your response as a list. Avoid providing any additional information, commentary, or personal opinions.\\nPython Code:groupedid=pd.DataFrame(sessions.groupby(['id'])['secs_elapsed'].sum())\ngroupedid['hour_elapsed']=groupedid['secs_elapsed'].div(3600).round(decimals=0)\ngroupedid.drop('secs_elapsed',axis=1,inplace=True)\ngroupedid.reset_index(inplace=True)\ngroupedid[(groupedid['id'] == '6udv3scuxe') | (groupedid['id'] == 'yxf0sm9sbw') | (groupedid['id'] == 'nttj7g9av6')] "}, {'role': 'assistant', 'content': "['data_preprocessing']"}]