public static void NodeAddAttributes(OnnxCSharpToProtoWrapper.NodeProto node, string argName, OnnxCSharpToProtoWrapper.GraphProto value)
 => node.Attribute.Add(MakeAttribute(argName, value));
 private static OnnxCSharpToProtoWrapper.AttributeProto MakeAttribute(string key, OnnxCSharpToProtoWrapper.GraphProto value)
 {
     OnnxCSharpToProtoWrapper.AttributeProto attribute = MakeAttribute(key);
     attribute.Type = OnnxCSharpToProtoWrapper.AttributeProto.Types.AttributeType.Graph;
     attribute.G    = value;
     return(attribute);
 }