[{'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:example_bags = [\n    {"horse": 1, "ball": 2},\n    {"train": 3, "bike": 1},\n    {"coal": 2, "book": 2},\n    {"gloves": 12, "book": 12},\n]\n\nplot_bag_weight_distributions(example_bags)'}, {'role': 'assistant', 'content': 'result_visualization'}]