<?xml version="1.0" encoding="UTF-8"?> <xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema" elementFormDefault="qualified" attributeFormDefault="unqualified" version="1.0.0"> <xs:complexType name="ExtendedDataType"> <xs:annotation> <xs:documentation>A type allocating space for future, additional, and validatable data.</xs:documentation> </xs:annotation> <xs:sequence> <xs:any processContents="lax" maxOccurs="unbounded"/> </xs:sequence> </xs:complexType> </xs:schema>