[{'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:import numpy as np\nimport pandas as pd\nfrom sklearn.model_selection import train_test_split\n\ndf = pd.read_csv('../input/44352/training_solutions_rev1.csv')\n\ndf_train, df_test = train_test_split(df, test_size=.2)\ndf_train.shape, df_test.shape"}, {'role': 'assistant', 'content': "['load_data']"}]