code: def test_inference():
      subprocess.run(
          "curl -X POST http://127.0.0.1:8080/predictions/onnx --data-binary '1'",
          shell=True,
      )
  
file_path: serve/test/pytest/test_onnx.py
imports: import subprocess
  import torch
  import torch.onnx
label_desc: Use image node_id 4 for calling a global function with example usage: test_inference() without return types