code: def test_delimit_whitespace(self):
      data = 'a  b\na\t\t "b"\n"a"\t \t b'
  
      reader = TextReader(
          StringIO(data), delim_whitespace=True, header=None
      )
      result = reader.read()
  
      tm.assert_numpy_array_equal(
          result[0], np.array(["a", "a", "a"], dtype=np.object_)
      )
      tm.assert_numpy_array_equal(
          result[1], np.array(["b", "b", "b"], dtype=np.object_)
      )
  
imports: from io import BytesIO, StringIO
  import numpy
  import pytest
  import pandas._libs.parsers
  from pandas._libs.parsers import TextReader
  from pandas.errors import ParserWarning
  from pandas import DataFrame
  import pandas._testing
  from pandas.io.parsers import TextFileReader, read_csv
  from pandas.io.parsers.c_parser_wrapper import ensure_dtype_objs
label_desc: Use image node_id 8 for calling the TestTextReader obj's underlying member method code with example usage: obj.test_delimit_whitespace() without return types