<ui1> (1-Byte Unsigned Integer) This element specifies a 1-byte unsigned integer variant type. The possible values for this element are defined by the XML Schema unsignedByte datatype. Parent Elements <array> (§7.4.2.1); <property> (§7.3.2.2); <variant> (§7.4.2.33); <vector> (§7.4.2.34)