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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 _force(self,obj,objtype=None):
 """Force a new value to be generated, and return it."""

        gen=super(Dynamic,self).__get__(obj,objtype)

        if hasattr(gen,'_Dynamic_last'):
            return self._produce_value(gen,force=True)
        else:
            return gen