code: def test_from_defaults(self):
      if not interactive_testing_requested():
          return
      checkpoint_dir = os.environ["exp_dir"]
      argv = [
          f"exp_dir={checkpoint_dir}",
          "n_eval_cameras=40",
          "render_size=[64,64]",
          "video_size=[256,256]",
      ]
      visualize_reconstruction.main(argv)
  
imports: import os
  import unittest
  from ..None import visualize_reconstruction
  from .utils import interactive_testing_requested
label_desc: Use image node_id 1 for calling the TestVisualize obj's underlying member method code with example usage: obj.test_from_defaults() without return types