[{'role': 'system', 'content': "You are an expert in machine learning and your task is to classify the code snippets into categories from the provided list of categories. List of categories: ['helper_functions', 'load_data', 'data_exploration', 'data_preprocessing', 'evaluation', 'modelling', 'prediction', 'result_visualization', 'save_results', 'comment_only']"}, {'role': 'user', 'content': "Identify to which category the provided code belongs and assign the code snippet to at least 1 but up to 5 categories based on the probabilities, ignore if the probability of the category is negligible. Strictly provide your response as a list. Avoid providing any additional information, commentary, or personal opinions.\\nPython Code:epochs = 20\nbatch_size = 100\nnum_steps = 100\ntrain_x, train_y, val_x, val_y = split_data(chars, batch_size, num_steps)\nfor lstm_size in [128,256,512]:\nfor num_layers in [1, 2]:\nfor learning_rate in [0.002, 0.001]:\nlog_string = 'logs/4/lr={},rl={},ru={}'.format(learning_rate, num_layers, lstm_size)\nwriter = tf.summary.FileWriter(log_string)\nmodel = build_rnn(len(vocab),\nbatch_size=batch_size,\nnum_steps=num_steps,\nlearning_rate=learning_rate,\nlstm_size=lstm_size,\nnum_layers=num_layers)\ntrain(model, epochs, writer)"}, {'role': 'assistant', 'content': "['modelling']"}]