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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def with_color_stripped(f):
 """ A function decorator for applying to `len` or imitators thereof that strips ANSI color sequences from a string before passing it on. If any color sequences are not followed by a reset sequence, an `UnterminatedColorError` is raised. """

    @wraps(f)
    def colored_len(s):
        s2 = re.sub(
            COLOR_BEGIN_RGX + '(.*?)' + COLOR_END_RGX,
            lambda m: re.sub(COLOR_BEGIN_RGX, '', m.group(1)),
            s,
        )
        if re.search(COLOR_BEGIN_RGX, s2):
            raise UnterminatedColorError(s)
        return f(re.sub(COLOR_END_RGX, '', s2))
    return colored_len