[{'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:periods_to_predict=5 #setting the number of periods to predict\nfor n in returns:\ngarch11 = arch_model(n, p=1, q=1)\nres = garch11.fit(update_freq=10)\nomega=res.params[1]\nalpha=res.params[2]\nbeta=res.params[3]\nsig_ma=np.std(n)  # 1st assumption\nreturn_forecast,sigma_forecast=simulate_GARCH(periods_to_predict,omega,alpha,beta,sig_ma)\nn=np.append(n,return_forecast)\nnew_returns.append(n)\nprint(new_returns) #returns of the asset in which the forecasted returns are added'}, {'role': 'assistant', 'content': 'prediction'}]