[{'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:path_base = \'/kaggle/working/train\'\nbatch_size = 64\ntrain_data_generator = ImageDataGenerator(\n            rescale=1./255.,\n            validation_split=0.2,\n            horizontal_flip=True\n            )\ntrain_generator = train_data_generator.flow_from_dataframe(dataframe=train_images,\n            directory="./train/",\n            x_col="path",\n            y_col="label",\n            subset="training",\n            batch_size=batch_size,\n            shuffle=True,\n            target_size=(32,32),\n            class_mode="categorical")\''}, {'role': 'assistant', 'content': 'data_preprocessing'}]