input: 
  def generate_natural_language_response(sample_utterance: str, model: Model) -> str:
      """ Generates a natural language response based on the given sample utterance using a pre-trained model.
      >>> generate_natural_language_response("What time is it?", model)
      'The current time is 10:00 AM.'
      >>> generate_natural_language_response("How are you?", model)
      'I am fine, thank you.'
      """
  
output:     response = model.generate_response(sample_utterance)
      return response