docstr: The setup class method for the basic test case with all default values.
code: def setUpClass(self):
      """
      The setup class method for the basic test case with all default values.
      """
      self.feature = "myimage"
      self.target = "mytarget"
  
      ## Create the model
      self.def_opts = {
          "model": "darknet-yolo",
          "max_iterations": 2,
      }
  
      # Model
      self.train, self.test, self.backgrounds = _get_data(
          feature=self.feature, target=self.target
      )
      self.model = tc.one_shot_object_detector.create(
          self.train,
          target=self.target,
          backgrounds=self.backgrounds,
          batch_size=2,
          max_iterations=1,
      )
  
      self.get_ans = {
          "target": lambda x: x == self.target,
          "num_starter_images": lambda x: len(self.train),
          "num_classes": lambda x: x == len(_CLASSES),
          "detector": lambda x: isinstance(
              x, tc.object_detector.object_detector.ObjectDetector
          ),
          "_detector_version": lambda x: x == 1,
      }
  
      self.fields_ans = self.get_ans.keys()
  
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
label_desc: Use image node_id 1 for calling the OneObjectDetectorSmokeTest obj's underlying member method code with example usage: obj.setUpClass() without return types