input: 
  from typing import Dict, List
  
  def generate_response(question: str, answers: Dict[str, str], default_responses: List[str]) -> str:
      """
      Given a question, a dictionary of predefined answers, and a list of default responses,
      return a relevant answer from the answers dictionary if the question exists, otherwise
      return a random default response. If the question is 'Goodbye', return 'Goodbye'.
      
      >>> generate_response('What is XYZ?', {'What is XYZ?': 'XYZ is a company that provides XYZ services.'}, ['I am not sure I understand.', 'Can you give me more information?'])
      'XYZ is a company that provides XYZ services.'
      >>> generate_response('What time is it?', {'What is XYZ?': 'XYZ is a company that provides XYZ services.'}, ['I am not sure I understand.', 'Can you give me more information?'])
      'I am not sure I understand.'
      """
      if question in answers:
          return answers[question]
      elif question == 'Goodbye':
          return 'Goodbye'
      else:
          import random
          return random.choice(default_responses)
  
output:     if question in answers:
          return answers[question]
      elif question == 'Goodbye':
          return 'Goodbye'
      else:
          import random
          return random.choice(default_responses)