[{'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 numpy as np\nimport pandas as pd\nimport cv2\nfrom keras.models import Sequential\nfrom keras.layers import Dense\nfrom keras.layers import Dropout\nfrom keras.layers import Flatten\nfrom sklearn.model_selection import train_test_split\nfrom keras.layers.convolutional import Convolution2D\nfrom keras.callbacks import ModelCheckpoint\nfrom keras.layers.convolutional import MaxPooling2D\nfrom keras.utils import np_utils\nfrom keras.constraints import maxnorm\nfrom keras.optimizers import Adam\nfrom keras.layers.convolutional import Convolution2D\nfrom keras.utils import np_utils\nfrom matplotlib import pyplot as plt\nimport glob'}, {'role': 'assistant', 'content': 'helper_functions'}]