[{'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 random\nimport datetime\nimport numpy as np\nimport pandas as pd\nimport xgboost as xgb\nfrom scipy.sparse import csr_matrix, hstack\nfrom sklearn.preprocessing import LabelEncoder\nfrom sklearn.cross_validation import train_test_split\nfrom subprocess import check_output\n\nrandom.seed(2010)\n\nprint(check_output(['ls', '../input']).decode('utf8'))"}, {'role': 'assistant', 'content': "['helper_functions']"}]