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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 is_class_sealed(klass):
 """ Whether or not the supplied class can accept dynamic properties. @rtype: C{bool} @since: 0.5 """

    mro = inspect.getmro(klass)
    new = False

    if mro[-1] is object:
        mro = mro[:-1]
        new = True

    for kls in mro:
        if new and '__dict__' in kls.__dict__:
            return False

        if not hasattr(kls, '__slots__'):
            return False

    return True