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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 min_width(string, cols, padding=' '):
 """Returns given string with right padding."""


    is_color = isinstance(string, ColoredString)

    stack = tsplit(str(string), NEWLINES)

    for i, substring in enumerate(stack):
        _sub = clean(substring).ljust((cols + 0), padding)
        if is_color:
            _sub = (_sub.replace(clean(substring), substring))
        stack[i] = _sub
        
    return '\n'.join(stack)