code: def test_empty_field_eof(self):
      data = "a,b,c\n1,2,3\n4,,"
  
      result = TextReader(StringIO(data), delimiter=",").read()
  
      expected = {
          0: np.array([1, 4], dtype=np.int64),
          1: np.array(["2", ""], dtype=object),
          2: np.array(["3", ""], dtype=object),
      }
      assert_array_dicts_equal(result, expected)
  
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 22 for calling the TestTextReader obj's underlying member method code with example usage: obj.test_empty_field_eof() without return types