code: def test_accuracy(accuracy_test, estimator_config, hybridize):
      Estimator, hyperparameters = estimator_config[1:]
      hyperparameters.update(
          num_batches_per_epoch=200, hybridize=hybridize
      )
  
      accuracy_test(Estimator, hyperparameters, accuracy=0.3)
  
imports: import pytest
  from gluonts.mx.model.n_beats import NBEATSEnsembleEstimator, NBEATSEstimator
label_desc: Use image node_id 4 for calling a global function with example usage: test_accuracy(accuracy_test, estimator_config, hybridize) without return types