code: def round_trip_field(self, field_generator):
      original_field = field_generator()
      java_field = self.bridge.python_to_java_field(original_field)
      del original_field
      new_field = self.bridge.java_to_python_field(java_field)
      del java_field
  
      expected = field_generator()
      self.assertEqual(expected, new_field)
  
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 4 for calling the TestPythonIntegration obj's underlying member method code with example usage: obj.round_trip_field(field_generator) without return types