def __camel_case(word):
        """
        Convert underscore naming into camel case naming
        :param str word:
        :return str:
        """
        word = word.lower()
        if '_' in word:
            split_word = word.split('_')
        else:
            split_word = word.split()
        if len(split_word) > 0:
            for i, word in enumerate(split_word):
                if i > 0:
                    split_word[i] = word.title()
        strings = ''.join(split_word)
        return strings