[{'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:import numpy as np\nimport pandas as pd\nfrom subprocess import check_output\n#types={'Semana':np.uint8,'Agencia_ID':np.uint16,'Canal_ID':np.uint8,\n #      'Ruta_SAK':np.uint16,'Cliente_ID':np.uint32,'Producto_ID':np.uint16,\n#       'Demanda_uni_equil':np.uint32}\ntypes = {'Semana':np.uint8, 'Agencia_ID':np.uint16, 'Canal_ID':np.uint8,\n         'Ruta_SAK':np.uint16, 'Cliente_ID':np.uint32, 'Producto_ID':np.uint16,\n         'Demanda_uni_equil':np.uint32}\n#train=pd.read_csv('../input/train.csv',usecols=types.keys(),dtypes=types)\ntrain=pd.read_csv('../input/train.csv',usecols=types.keys(),dtypes=types,nrows=1000)\nprint(train.dtype)\nprint(train.info(memery_usage=True))"}, {'role': 'assistant', 'content': 'load_data'}]