code: def normalize(alias):
      
      # Convert from CamelCase to snake_case
      alias = re.sub(r'([a-z])([A-Z])', r'\1_\2', alias)
      # Ignore words
      words = alias.lower().split('_')
      words = filter(lambda w: w not in IGNORED_WORDS, words)
      return '_'.join(words)
docs: Normalizes an alias by removing adverbs defined in IGNORED_WORDS