code: def test_numpy_deserializer_from_npz(numpy_deserializer):
      arrays = {
          "alpha": np.ones((2, 3)),
          "beta": np.zeros((3, 2)),
      }
      stream = io.BytesIO()
      np.savez_compressed(stream, **arrays)
      stream.seek(0)
  
      result = numpy_deserializer.deserialize(
          stream, "application/x-npz"
      )
  
      assert isinstance(result, np.lib.npyio.NpzFile)
      assert set(arrays.keys()) == set(result.keys())
      for key, arr in arrays.items():
          assert np.array_equal(arr, result[key])
  
imports: from __future__ import absolute_import
  import io
  import json
  import numpy
  import pandas
  import pytest
  from sagemaker.deserializers import StringDeserializer, BytesDeserializer, CSVDeserializer, StreamDeserializer, NumpyDeserializer, JSONDeserializer, PandasDeserializer, JSONLinesDeserializer
label_desc: Use image node_id 19 for calling a global function with example usage: test_numpy_deserializer_from_npz(numpy_deserializer) without return types