The <cxxUnionNestedUnion> element within <cxxUnionNestedDetail> provides the name of a union nested in a union.
The text in this element is the fully qualified name of the union that has been nested in a union. There are no mandatory attributes.
<cxxUnionNested>
<cxxUnionNestedDetail>
<cxxUnionNestedUnion href="union_comms.xml#struct_comms_package">CommsFW::TCFLegacyMessagePacker::TUnion::TLegacyPackage</cxxUnionNestedStruct>
<cxxUnionNestedUnion href="union_comms.xml#struct_comms_package">CommsFW::TCFLegacyMessagePacker::TUnion::TPackage</cxxUnionNestedStruct>
</cxxUnionNestedDetail>
</cxxUnionNested>