code: def test_numpy(self):
      result = serialize_json_safe(np.array([1, 2, 3]))
      assert result == [1, 2, 3]
  
imports: import datetime
  import json
  import numpy
  import pandas
  import pytest
  from scipy.sparse import csr_matrix
  from raiutils.data_processing import convert_to_list, convert_to_string_list_dict, serialize_json_safe
label_desc: Use image node_id 2 for calling the TestSerializationUtilities obj's underlying member method code with example usage: obj.test_numpy() without return types