code: def test_list(self):
      d = dt.datetime(2010, 10, 10, 10, 10, 10)
      img = image.Image(
          current_file_dir + "/images/nested/sample_grey.jpg", "JPG"
      )
      expected = [
          None,
          img,
          1,
          0.1,
          "1",
          d,
          array.array("d", [1, 2, 3]),
          {"foo": array.array("d", [1, 2, 3])},
      ]
  
      self.assert_equal_with_lambda_check(
          _flexible_type(expected), expected
      )
      self.assert_equal_with_lambda_check(_flexible_type([]), [])
      self.assert_equal_with_lambda_check(
          _flexible_type([[], []]), [[], []]
      )
  
imports: from __future__ import print_function
  from __future__ import division
  from __future__ import absolute_import
  import unittest
  import numpy
  from numpy import nan
  import array
  import datetime
  from ..data_structures import image
  from ..None import SArray
  import os
  from .._cython.cy_flexible_type import _translate_through_flexible_type
  from .._cython.cy_flexible_type import _translate_through_flex_list
  from .._cython.cy_flexible_type import infer_type_of_list
  from .._cython.cy_flexible_type import _get_inferred_column_type, _all_convertable
  from .._cython.cy_flexible_type import _check_ft_pyobject_hint_path
  from .._cython.cy_flexible_type import pytype_from_type_name
  from .._cython.cy_flexible_type import GMT
  import datetime
  from itertools import product
  from copy import copy
  import pytest
  import sys
label_desc: Use image node_id 10 for calling the FlexibleTypeTest obj's underlying member method code with example usage: obj.test_list() without return types