input: from typing import List
  
  def generate_response(utterances: List[str], model) -> List[str]:
      """ Generate natural language responses for each sample utterance using the given model.
      >>> generate_response(["What time is it?", "How are you?"], model)
      ['<response for "What time is it?">', '<response for "How are you?">']
      """
      pass
output:     responses = []
      for utterance in utterances:
          response = model.generate_response(utterance)
          responses.append(response)
      return responses