code: def _test_onnx_iterate():
      folder = os.path.join(test_data_dir, "onnx")
      for item in os.listdir(folder):
          file = os.path.join(folder, item)
          if (
              file.endswith(".onnx")
              and item != "super_resolution.onnx"
              and item != "arcface-resnet100.onnx"
          ):
              print(item)
              onnx = __import__("onnx")
              model = onnx.load(file)
              address = netron.serve(file, model, verbosity="quiet")
              netron.stop(address)
  
file_path: netron/test/backend.py
imports: import os
  import sys
label_desc: Use image node_id 2 for calling a global function with example usage: _test_onnx_iterate() without return types