code: def setUpClass(self):
      self.feature = "myimage"
      self.annotations = "myannotations"
      self.sf = _get_data(
          feature=self.feature, annotations=self.annotations
      )
  
imports: from __future__ import print_function
  from __future__ import division
  from __future__ import absolute_import
  import unittest
  import pytest
  from .None import util
  import turicreate
  import tempfile
  import numpy
  import platform
  import pytest
  import sys
  import os
  from turicreate.toolkits._main import ToolkitError
  from turicreate.toolkits._internal_utils import _raise_error_if_not_sarray, _mac_ver
  from six import StringIO
label_desc: Use image node_id 1 for calling the ObjectDetectorGPUTest obj's underlying member method code with example usage: obj.setUpClass() without return types