code: def test_partitioning_functions(self):
      self.check_partitioning_functions(DataFrameWriterV2)
  
file_path: spark/python/pyspark/sql/tests/connect/test_parity_readwriter.py
imports: import unittest
  from pyspark.sql.tests.test_readwriter import ReadwriterTestsMixin, ReadwriterV2TestsMixin
  from pyspark.testing.connectutils import should_test_connect, ReusedConnectTestCase
label_desc: Use image node_id 2 for calling the ReadwriterV2ParityTests obj's underlying member method code with example usage: obj.test_partitioning_functions() without return types