[{'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:Correlation_Matrix=train2[['holiday','workingday','weather','temp','atemp','humidity','windspeed','casual','registered','count']].corr()\nmask = np.array(Correlation_Matrix)\nmask[np.tril_indices_from(mask)] = False\nfig,ax= plt.subplots()\nfig.set_size_inches(20,10)\nsns.heatmap(Correlation_Matrix,mask=mask,vmax=.8,annot=True,square=True)"}, {'role': 'assistant', 'content': 'result_visualization'}]