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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 _produce_value(self,gen,force=False):
 """ Return a value from gen. If there is no time_fn, then a new value will be returned (i.e. gen will be asked to produce a new value). If force is True, or the value of time_fn() is different from what it was was last time produce_value was called, a new value will be produced and returned. Otherwise, the last value gen produced will be returned. """


        if hasattr(gen,"_Dynamic_time_fn"):
            time_fn = gen._Dynamic_time_fn
        else:
            time_fn = self.time_fn

        if (time_fn is None) or (not self.time_dependent):
            value = produce_value(gen)
            gen._Dynamic_last = value
        else:

            time = time_fn()

            if force or time!=gen._Dynamic_time:
                value = produce_value(gen)
                gen._Dynamic_last = value
                gen._Dynamic_time = time
            else:
                value = gen._Dynamic_last

        return value