code: def test_struct_array(self):
      fields = [
          ("f1", pa.int32()),
          ("f2", pa.string()),
      ]
      data = [
          {"f1": 1, "f2": "a"},
          None,
          {"f1": 3, "f2": None},
          {"f1": None, "f2": "d"},
          {"f1": None, "f2": None},
      ]
      self.round_trip_array(
          lambda: pa.array(data, type=pa.struct(fields))
      )
  
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 13 for calling the TestPythonIntegration obj's underlying member method code with example usage: obj.test_struct_array() without return types