import onnxruntime as rt

sess_options = rt.SessionOptions()
sess_options.graph_optimization_level = rt.GraphOptimizationLevel.ORT_ENABLE_ALL

#########################################
## Change the Path Accordingly
sess_options.optimized_model_filepath = "d:/tmp/optimized_model.onnx"


#########################################
## Change the model.onnx path accordingly
session = rt.InferenceSession("model.onnx" , sess_options,
   ###providers=['xxxxxxxxxDmlExecutionProvider', 'CPUExecutionProvider'])
   providers=['DmlExecutionProvider'])