code: def test_logistic_classifier(self):
      if _mac_ver() < (10, 14):
          pytest.xfail(
              "See https://github.com/apple/turicreate/issues/1332"
          )
      for code_string in ["b" * 40, "nnnn", "v", "d", "A", "bnsCvAd"]:
          train, test = self.generate_data(
              "classification", 100, code_string
          )
          model = tc.logistic_classifier.create(
              train, "target", validation_set=None
          )
          model.evaluate(
              test
          )  # Previous regression -- this caused errors.
          self._test_coreml_export(model, test, False)
  
imports: from __future__ import print_function
  from __future__ import division
  from __future__ import absolute_import
  import unittest
  import tempfile
  import turicreate
  import math
  import uuid
  import random
  import copy
  from turicreate.toolkits import evaluation
  from turicreate.toolkits._main import ToolkitError
  from turicreate.toolkits._internal_utils import _mac_ver
  import shutil
  import numpy
  import sys
  import platform
  import array
  import os
  import pytest
label_desc: Use image node_id 10 for calling the CoreMLExportTest obj's underlying member method code with example usage: obj.test_logistic_classifier() without return types