class_docstr: Checks that pre-trained Transresnet model gives the correct results.
docstr: Set up the test by downloading the model/data.
docstr_tok: ["Set","up","the","test","by","downloading","the","model\/data","."]
code: def setUpClass(cls):
      """
      Set up the test by downloading the model/data.
      """
      parser = display_data.setup_args()
      parser.set_defaults(**MODEL_OPTIONS)
      opt = parser.parse_args([])
      opt["num_examples"] = 1
      display_data.display_data(opt)
  
imports: import unittest
  import parlai.scripts.display_data
  import parlai.utils.testing
label_desc: Use image node_id 1 for calling the TestTransresnet obj's underlying member method code with example usage: obj.setUpClass(cls) without return types