code: def test_string_array(self):
      self.round_trip_array(lambda: pa.array([None, "a", "bb", "ccc"]))
  
imports: import decimal
  import gc
  import os
  import sys
  import unittest
  import xml.etree.ElementTree
  import jpype
  import pyarrow
  import pyarrow.ipc
  from pyarrow.cffi import ffi
label_desc: Use image node_id 8 for calling the TestPythonIntegration obj's underlying member method code with example usage: obj.test_string_array() without return types