input: Write a function to query Twitter to get the most recent tweets from a user. The function should authenticate to Twitter, create an API object, and then fetch the most recent tweets for the specified user.
  assert query_twitter_tweets("CONSUMER_KEY", "CONSUMER_SECRET", "ACCESS_TOKEN", "ACCESS_TOKEN_SECRET", "@elonmusk") is not None
  assert query_twitter_tweets("CONSUMER_KEY", "CONSUMER_SECRET", "ACCESS_TOKEN", "ACCESS_TOKEN_SECRET", "@BarackObama") is not None
output: def query_twitter_tweets(consumer_key, consumer_secret, access_token, access_token_secret, user):
      import tweepy
      auth = tweepy.OAuth1UserHandler(consumer_key, consumer_secret, access_token, access_token_secret)
      api = tweepy.API(auth)
      tweets = api.user_timeline(screen_name=user, count=10)
      return tweets