code: def check_model_expect(request):
      selected_runtime = request.config.getoption("value-check-runtime")
      if selected_runtime == "onnxruntime":
          from onnx_chainer.testing.test_onnxruntime import (
              check_model_expect,
          )  # NOQA
  
          _checker = check_model_expect
      elif selected_runtime == "mxnet":
          from onnx_chainer.testing.test_mxnet import check_model_expect
  
          _checker = check_model_expect
      else:
  
          def empty_func(*args, **kwargs):
              pass
  
          _checker = empty_func
      return _checker
  
file_path: chainer/tests/onnx_chainer_tests/conftest.py
imports: import chainer
  import onnx
  import pytest
  import onnx_chainer
label_desc: Use image node_id 3 for calling a global function with example usage: check_model_expect(request) and returns: _checker