code: def test_numpy_deserializer_from_csv_alpha():
      numpy_deserializer = NumpyDeserializer(dtype="U5")
      stream = io.BytesIO(b"hello,2,3\n4,5,6")
      array = numpy_deserializer.deserialize(stream, "text/csv")
      assert np.array_equal(
          array, np.array([["hello", 2, 3], [4, 5, 6]])
      )
  
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 12 for calling a global function with example usage: test_numpy_deserializer_from_csv_alpha() without return types