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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 foreach_model(self, fn):
 """Apply the given function to each model replica in each worker. Returns: List of results from applying the function. """


        results = ray.get([w.foreach_model.remote(fn) for w in self.workers])
        out = []
        for r in results:
            out.extend(r)
        return out