input: Write a function to implement a chatbot in Python that can provide customer support in a restaurant. The function should read the user's question from a file named 'random_user_question.txt' and respond with a randomly selected message from a list of possible responses. The function should return the selected response as a string.
  
  assert restaurant_chatbot("What meals do you serve?") == 'We serve a variety of dishes - from salads to pizzas to steaks!'
  assert restaurant_chatbot("What kinds of dishes do you have?") == 'Check out our menu for a full list of options'
  assert restaurant_chatbot("Do you serve vegetarian options?") == 'We serve a variety of dishes, including traditional Italian, Mexican, and American fare. What would you like to try?'
  assert restaurant_chatbot("What type of cuisine do you specialize in?") == 'We have a great selection of meals! What kind of dish are you looking for?'
  assert restaurant_chatbot("Tell me about your menu.") == 'We have a unique selection of meals - have you checked out our menu?'
output: import random
  
  def restaurant_chatbot(question):
      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?'
      ]
      return random.choice(responses)