def titleize(s: str) -> str:
    """
    Titleizes a string, aka transforms it from underscored to English title
    format
    """
    s = s.replace('_', ' ')
    words = s.split(' ')
    new_words = [
        w[0].upper() + w[1:]
        for w in words
    ]

    return ' '.join(new_words)