code: def _onnxruntime_checker():
      """
      check if onnxruntime and onnx is installed
      """
      onnxruntime_installed = not find_spec("onnxruntime") is None
      onnx_installed = not find_spec("onnx") is None
      return onnxruntime_installed and onnx_installed
  
file_path: BigDL/python/nano/src/bigdl/nano/utils/common/checker.py
imports: from importlib.util import find_spec
  from bigdl.nano.utils.common import CPUInfo
  import operator
  from .version import compare_version
label_desc: Use image node_id 3 for calling a global function with example usage: _onnxruntime_checker() and returns: unknown