[{'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:forest_class = RandomForestClassifier(random_state = 42)\n\nn_estimators = [100, 500]\nmin_samples_split = [10, 20]\n\nparam_grid_forest = {'n_estimators' : n_estimators, 'min_samples_split' : min_samples_split}\n\n\nrand_search_forest = GridSearchCV(forest_class, param_grid_forest, cv = 4, refit = True,\n                                 n_jobs = -1, verbose=2)\n\nrand_search_forest.fit(final_train_X, train_set_y)"}, {'role': 'assistant', 'content': 'modelling'}]