input: Write a function to return a random quote from a predefined list of quotes.
  assert get_random_quote() in [
   "It's not who you are that holds you back, it's who you think you're not.",
   "You don't have to be great to start, but you have to start to be great.",
   "It's not what happens to you, but how you react to it that matters.",
   "It does not matter how slowly you go, as long as you do not stop."
  ]
  assert get_random_quote() in [
   "It's not who you are that holds you back, it's who you think you're not.",
   "You don't have to be great to start, but you have to start to be great.",
   "It's not what happens to you, but how you react to it that matters.",
   "It does not matter how slowly you go, as long as you do not stop."
  ]
output: import random
  
  def get_random_quote():
      quotes = [
          "It's not who you are that holds you back, it's who you think you're not.",
          "You don't have to be great to start, but you have to start to be great.",
          "It's not what happens to you, but how you react to it that matters.",
          "It does not matter how slowly you go, as long as you do not stop."
      ]
      return random.choice(quotes)