input: def auto_complete(dictionary: List[str], prefix: str) -> List[str]:
      """Given a list of words and a prefix, return a list of words that start with the given prefix.
      >>> auto_complete(["dog", "deer", "deal", "dungeon", "dark", "dusk"], "d")
      ['dog', 'deer', 'deal', 'dungeon', 'dark', 'dusk']
      """
output:     return [word for word in dictionary if word.startswith(prefix)]