input: Write a function `provide_customer_support(user_question)` that implements a chatbot to provide customer support in a restaurant. The chatbot should read a user's question from the input file 'random_user_question.txt', select a random response from a predefined list of possible answers, and print the response.
  assert provide_customer_support("What meals do you serve?") == "We serve a variety of dishes - from salads to pizzas to steaks!"
  assert provide_customer_support("What type of cuisine do you offer?") == "We serve a variety of dishes, including traditional Italian, Mexican, and American fare. What would you like to try?"
  assert provide_customer_support("Do you have a specific vegan option?") == "Check out our menu for a full list of options"
  assert provide_customer_support("Can you recommend a dish?") == "We have a great selection of meals! What kind of dish are you looking for?"
  assert provide_customer_support("Is your menu diverse?") == "We have a unique selection of meals - have you checked out our menu?"
output: import random
  
  def provide_customer_support(user_question):
      responses = [
          "We serve a variety of dishes - from salads to pizzas to steaks!",
          "We serve a variety of dishes, including traditional Italian, Mexican, and American fare. What would you like to try?",
          "Check out our menu for a full list of options",
          "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)