[{'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 pandas as pd\nimport numpy as np\nimport seaborn as sns\nimport matplotlib.pyplot as plt\nimport warnings\n% matplotlib inline\nfrom datetime import datetime\nfrom scipy import stats\npd.options.mode.chained_assignment = None\nfrom scipy.stats import norm, skew\nwarnings.filterwarnings("ignore", category=DeprecationWarning)\nfrom sklearn.ensemble import RandomForestRegressor\nfrom sklearn.linear_model import LinearRegression,Ridge,Lasso\nfrom sklearn.model_selection import GridSearchCV\nfrom sklearn import metrics\nimport warnings'}, {'role': 'assistant', 'content': 'helper_functions'}]