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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 getSolutionIter(self):
 """ Return an iterator to the solutions of the problem Example: True {'a': 42} Traceback (most recent call last):
 File "<stdin>", line 1, in ? StopIteration """

        domains, constraints, vconstraints = self._getArgs()
        if not domains:
            return iter(())
        return self._solver.getSolutionIter(domains, constraints, vconstraints)