input: Write a function to fetch and print the most recent tweets from a specified Twitter user using the Tweepy library. The function should take a Twitter username as input and return nothing.
  assert query_tweets_from_user("@elonmusk")
output: 
  def query_tweets_from_user(username):
      import tweepy
      auth = tweepy.OAuth1UserHandler(
          "API_KEY", "API_SECRET_KEY", "ACCESS_TOKEN", "ACCESS_TOKEN_SECRET"
      )
      api = tweepy.API(auth)
      tweets = api.user_timeline(screen_name=username, count=10, tweet_mode="extended")
      for tweet in tweets:
          print(tweet.full_text)
  