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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 disconnect(self, func):
 """No longer call the function when something changes here."""

        if id(self) not in _alleged_receivers:
            return
        l = _alleged_receivers[id(self)]
        try:
            l.remove(func)
        except ValueError:
            return
        if not l:
            del _alleged_receivers[id(self)]