private NodeMetadata GetOutputMetadata(ulong index) { IntPtr typeInfo = IntPtr.Zero; try { NativeApiStatus.VerifySuccess(NativeMethods.ONNXRuntimeInferenceSessionGetOutputTypeInfo(_nativeHandle, index, out typeInfo)); return(GetMetadataFromTypeInfo(typeInfo)); } finally { if (typeInfo != IntPtr.Zero) { NativeMethods.ONNXRuntimeReleaseObject(typeInfo); } } }