input: Write a function to simulate a chatbot that provides customer support for a restaurant by responding to a question read from a file named 'random_user_question.txt'. The function should randomly select a response from a predefined list of possible responses and display it. The function should return None.
  
  import random
  
  # list of possible answers
  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?'
  ]
  
  def restaurant_chatbot():
      # read the user's question
      with open('random_user_question.txt') as user_question:
          question = user_question.read()
      
      # choose a random response
      response = random.choice(possible_responses)
      
      # display the response to the user
      print(response)
output: def restaurant_chatbot():
      with open('random_user_question.txt') as user_question:
          question = user_question.read()
      response = random.choice(possible_responses)
      print(response)