[Simple-support] Serialize / Deserialize xs:choice element

[Michele I. <Mic...@au...>]

Hello, I have the following:

<xs:choice>
            <xs:sequence>
                        <xs:element name="DATAINIZIO"/>
                        <xs:element name="DATAFINE"/>
            </xs:sequence>
            <xs:element name="NUMTRANSAZIONE"/>
</xs:choice>

How to I annotate the choice XSD element using SimpleXML?
Thanks