Adding attribute to xml custompart in docx Word document at run time using VBA

I am saving data included in Word document in XML format in the ActiveDocument.CustomXmlParts.
I can add node to the XML structure, using VBA code,  but I didn't succeed to add new attribute. I've search a lot but didn't find any reference to this.
Here is the code:

Set MyDoc = ActiveDocument
xml = "<Root><Cities><City id='1'>NY</City><City id='2'>Boston</City></Cities></Root>"
Set MyPart = MyDoc.CustomXMLParts.Add(xml)
Set ParentNode = MyPart.SelectSingleNode("//Root/Cities")
MyPart.AddNode ParentNode, "City", , , , "LA"

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How to add a node at runtime with an attribute: <City id='3'>LA</City>

Thank you

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Robert SchuttSoftware EngineerCommented:
I'm not really able to test this other than in the VBA editor with a watch, but this seems to work:

After your line 6 (I added the code block above), add this line:
MyPart.AddNode ParentNode.LastChild, "id", , , msoCustomXMLNodeAttribute, 3

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nava1000Author Commented:
Thank you very much.
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