code: def test_sarray(self):
      model = self.model
      data = self.sf[self.feature]
      predictions = model.predict(data)
      _raise_error_if_not_sarray(predictions)
      predictions = model.predict_topk(data)
      _raise_error_if_not_sframe(predictions)
      predictions = model.classify(data)
      _raise_error_if_not_sframe(predictions)
  
imports: from __future__ import print_function
  from __future__ import division
  from __future__ import absolute_import
  import os
  import sys
  import unittest
  import turicreate
  from turicreate.toolkits._main import ToolkitError
  from turicreate.toolkits._internal_utils import _mac_ver, _raise_error_if_not_sframe, _raise_error_if_not_sarray
  import tempfile
  import shutil
  import pytest
  import coremltools
  import platform
label_desc: Use image node_id 8 for calling the ImageClassifierTest obj's underlying member method code with example usage: obj.test_sarray() without return types