Create attribute xsi:type

Hello,

We need to put an attribute xsi:type (xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance) in an xml document via a mapping. However it is not allowed to create an attribute 'type' of this namespace via XMLSchema. So we can not easily fill it via an XI Mapping.

Does anyone have an idea on how to tackle this problem?

Greetings,

Bart