code: def create(technical_terms_filename, spellchecker_cache_path):
      
      user_dictionary = os.path.join(os.getcwd(), "DICTIONARY")
      user_words = read_dictionary_file(user_dictionary)
  
      technical_terms_set = set(user_words)
  
      if technical_terms_filename:
          with open(technical_terms_filename) as tech_tf:
              technical_terms_set |= set(tech_tf.read().splitlines())
  
      return Dictionary(technical_terms_set,
                        "technical_words",
                        dictionary_sources=[technical_terms_filename,
                                            user_dictionary],
                        cache=spellchecker_cache_path)
docs: Create a Dictionary at spellchecker_cache_path with technical words.