input: from typing import List
  
  def autocomplete(input_text: str) -> List[str]:
      """ Generates a list of the top 5 predicted words based on the input_text. 
      The function first generates word candidates from the input text using the 
      'generate_candidates' function, then filters them using the 'filter_candidates' 
      function, and finally ranks the filtered words using the 'rank_words' function 
      to return the top 5 predicted words.
      >>> autocomplete("hel")
      ['hello', 'help', 'helmet', 'hell', 'helix']
      >>> autocomplete("tes")
      ['test', 'testing', 'testimony', 'tesla', 'tess']
      """
output:     candidates = generate_candidates(input_text)
      filtered_candidates = filter_candidates(candidates)
      ranked_candidates = rank_words(filtered_candidates)
      return ranked_candidates[:5]