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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 show(cls, msg=None):
 """ Show the log interface on the page. """

        if msg:
            cls.add(msg)

        cls.overlay.show()
        cls.overlay.el.bind("click", lambda x: cls.hide())

        cls.el.style.display = "block"
        cls.bind()