input: Write a function to implement a chatbot in Python that can provide customer support in a restaurant based on user queries read from a file named 'random_user_question.txt'. The function should randomly select a response from a predefined list of possible responses and print it.
  def restaurant_chatbot():
      possible_responses = [
       'We serve a variety of dishes - from salads to pizzas to steaks!',
       'Check out our menu for a full list of options',
       'We serve a variety of dishes, including traditional Italian, Mexican, and American fare. What would you like to try?',
       'We have a great selection of meals! What kind of dish are you looking for?',
       'We have a unique selection of meals - have you checked out our menu?'
      ]
      with open('random_user_question.txt') as user_question:
          question = user_question.read()
      response = random.choice(possible_responses)
      print(response)
  assert restaurant_chatbot()=='We serve a variety of dishes - from salads to pizzas to steaks!' or restaurant_chatbot()=='Check out our menu for a full list of options' or restaurant_chatbot()=='We serve a variety of dishes, including traditional Italian, Mexican, and American fare. What would you like to try?' or restaurant_chatbot()=='We have a great selection of meals! What kind of dish are you looking for?' or restaurant_chatbot()=='We have a unique selection of meals - have you checked out our menu?'
output: 
  def restaurant_chatbot():
      possible_responses = [
       'We serve a variety of dishes - from salads to pizzas to steaks!',
       'Check out our menu for a full list of options',
       'We serve a variety of dishes, including traditional Italian, Mexican, and American fare. What would you like to try?',
       'We have a great selection of meals! What kind of dish are you looking for?',
       'We have a unique selection of meals - have you checked out our menu?'
      ]
      with open('random_user_question.txt') as user_question:
          question = user_question.read()
      response = random.choice(possible_responses)
      print(response)
  