onnx 運算元定義
onnx 1.15.0
onnxruntime 1.16.0
https://github.com/onnx/onnx/blob/v1.15.0/docs/Operators.md#Pow
onnx 1.15.0
onnxruntime 1.16.0
https://github.com/onnx/onnx/blob/v1.15.0/docs/Operators.md#Pow