code: def train(self, epochs=3):
      raise NotImplementedError()
  
file_path: SerpentAI/serpent/machine_learning/context_classification/context_classifier.py
imports: import serpent.datasets
  import os
  import random
  import skimage.io
label_desc: Use image node_id 5 for calling the ContextClassifier obj's underlying member method code with example usage: obj.train(epochs) without return types