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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 niterations(self):
 """The current number of iterations."""

        itercounter = self._itercounter
        if itercounter is None:
            itercounter = 0
        lastclear = self._lastclear
        if lastclear is None:
            lastclear = 0
        return itercounter + lastclear