[{'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:#X_Train = df_train.loc[:, [\'State\', \'Country\', \'Date\']]\nX_Train = df_train.copy()\n\nX_Train[\'State\'].fillna(EMPTY_VAL, inplace=True)\nX_Train[\'State\'] = X_Train.loc[:, [\'State\', \'Country\']].apply(lambda x : fillState(x[\'State\'], x[\'Country\']), axis=1)\n\nX_Train.loc[:, \'Date\'] = X_Train.Date.dt.strftime("%m%d")\nX_Train["Date"]  = X_Train["Date"].astype(int)\n\nX_Train.head()\''}, {'role': 'assistant', 'content': "['data_preprocessing']"}]