code: def camelize(word):
      
      return ''.join(w[0].upper() + w[1:]
                     for w in re.sub('[^A-Z^a-z^0-9^:]+', ' ', word).split(' '))
docs: Convert a word from lower_with_underscores to CamelCase.
  
      Args:
          word: The string to convert.
      Returns:
          The modified string.