code: def test_iterator_loop(self, dirpath, k, chunksize):
      # github #13654
      fname = os.path.join(dirpath, f"test{k}.sas7bdat")
      with pd.read_sas(
          fname, chunksize=chunksize, encoding="utf-8"
      ) as rdr:
          y = 0
          for x in rdr:
              y += x.shape[0]
      assert y == rdr.row_count
  
imports: import contextlib
  from datetime import datetime
  import io
  import os
  from pathlib import Path
  import numpy
  import pytest
  from pandas.compat import IS64
  from pandas.errors import EmptyDataError
  import pandas.util._test_decorators
  import pandas
  import pandas._testing
  from pandas.io.sas.sas7bdat import SAS7BDATReader
label_desc: Use image node_id 6 for calling the TestSAS7BDAT obj's underlying member method code with example usage: obj.test_iterator_loop(dirpath, k, chunksize) without return types