def METHOD_NAME(self):
    self.mx_metric = mx.gluon.metric.Accuracy()
    self.mx_loss = gluon.loss.SoftmaxCrossEntropyLoss()
    accuracy_metric = mx.gluon.metric.Accuracy()
    loss_metric = mx.gluon.metric.CrossEntropy()
    self.metrics = mx.gluon.metric.CompositeEvalMetric()
    for child_metric in [accuracy_metric, loss_metric]:
        self.metrics.add(child_metric)