code: def test_decimal_array(self):
      data = [
          round(decimal.Decimal(722.82), 2),
          round(decimal.Decimal(-934.11), 2),
          None,
      ]
      self.round_trip_array(lambda: pa.array(data, pa.decimal128(5, 2)))
  
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 9 for calling the TestPythonIntegration obj's underlying member method code with example usage: obj.test_decimal_array() without return types