[{'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:# read in kaggle and external datasets as dataframes\ntable_names = [train, store, store_states, state_names, googletrend, weather, test]\ntables = [pd.read_csv(fpath, low_memory=False) for fpath in table_names]\ntrain, store, store_states, state_names, googletrend, weather, test = tables\nlen(train),len(test)'}, {'role': 'assistant', 'content': "['load_data']"}]