code: def onnx_opset_version() -> int:
      """
      Return current opset for domain `ai.onnx`.
      """
  
      return C.schema_version_map()[ONNX_DOMAIN][1]
  
imports: from typing import List
  from onnx.onnx_cpp2py_export import defs
  from onnx import AttributeProto, FunctionProto
label_desc: Use image node_id 1 for calling a global function with example usage: onnx_opset_version() and returns: C