The documentation page ONNXRUNTIME/PACKAGE_REFERENCE/&AMP;NUM;OPTIMUM.ONNXRUNTIME.ORTTRAINER.MODEL doesn’t exist in v1.22.0, but exists on the main version. Click <a href="/docs/optimum/main/en/onnxruntime/package_reference/&amp;num;optimum.onnxruntime.ORTTrainer.model">here</a> to redirect to the main version of the documentation.