code: def setUp(self):
      self.tmp_dir = tempfile.mkdtemp()
  
      if self.depth == 1:
          _setup_depth_one_dummy_data(
              self.tmp_dir,
              self.n_class,
              self.n_img_per_class,
              self.size,
              self.color,
              self.suffix,
          )
      elif self.depth == 2:
          _setup_depth_two_dummy_data(
              self.tmp_dir,
              self.n_class,
              self.n_img_per_class,
              self.n_sub_directory,
              self.size,
              self.color,
              self.suffix,
          )
  
imports: import numpy
  import os
  import shutil
  import tempfile
  import unittest
  from chainer import testing
  from chainercv.datasets import directory_parsing_label_names
  from chainercv.datasets import DirectoryParsingLabelDataset
  from chainercv.utils import assert_is_label_dataset
  from chainercv.utils import write_image
label_desc: Use image node_id 1 for calling the TestDirectoryParsingLabelDataset obj's underlying member method code with example usage: obj.setUp() without return types