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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 export_metrics(self, metrics):
 """ Exports given metrics to target metric service. """

        metric_protos = []
        for metric in metrics:
            metric_protos.append(_get_metric_proto(metric))

        self._rpc_handler.send(
            metrics_service_pb2.ExportMetricsServiceRequest(
                metrics=metric_protos))