code: def test_orphaned_file(self):
      hdfs = hdfs_test_client()
      file_path = self._make_test_file(
          hdfs, "orphaned_file_test", "fname", b"foobarbaz"
      )
  
      f = hdfs.open(file_path)
      hdfs = None
      f = None
  
imports: import os
  import random
  from io import BytesIO
  from os.path import join
  import numpy
  import pytest
  import pyarrow
  from pyarrow.tests import util
  from pyarrow.tests.parquet.common import _test_dataframe
  from pyarrow.tests.parquet.test_dataset import _test_write_to_dataset_with_partitions, _test_write_to_dataset_no_partitions
  from pyarrow.util import guid
label_desc: Use image node_id 2 for calling the TestLibHdfs obj's underlying member method code with example usage: obj.test_orphaned_file() without return types