[{'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:# modify country_destination to numerical values\n\ncountry_num_dic = {'NDF': 0, 'US': 1, 'other': 2, 'FR': 3, 'IT': 4, 'GB': 5, 'ES': 6, 'CA': 7, 'DE': 8, 'NL': 9, 'AU': 10, 'PT': 11}\nnum_country_dic = {y:x for x,y in country_num_dic.items()}\n\nY_train    = Y_train.map(country_num_dic)"}, {'role': 'assistant', 'content': "['data_preprocessing']"}]