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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 _new_replica(self, instance_id: int, is_master: bool, bls_bft: BlsBft) -> Replica: """ Create a new replica with the specified parameters. """

        return self._replica_class(self._node, instance_id, self._config, is_master, bls_bft, self._metrics)