code: def test_assignment1(self):
      a = self.data
      assert_equal(a.col1[0], 1)
      a[0].col1 = 0
      assert_equal(a.col1[0], 0)
  
imports: import collections.abc
  import textwrap
  from io import BytesIO
  from os import path
  from pathlib import Path
  import pytest
  import numpy
  from numpy.testing import assert_, assert_equal, assert_array_equal, assert_array_almost_equal, assert_raises, temppath
  from numpy.compat import pickle
label_desc: Use image node_id 2 for calling the TestRecord obj's underlying member method code with example usage: obj.test_assignment1() without return types