- https://purl.semanticip.org/linked-data/sdmx/ML/BooleanValueType
TTL - complexType
BooleanValueType is a refinement of SimpleValueType limiting the content to be a boolean.
- SDMXCommon.xsd
<xs:complexType xmlns:xs="http://www.w3.org/2001/XMLSchema" name="BooleanValueType">
<xs:annotation>
<xs:documentation>BooleanValueType is a refinement of SimpleValueType limiting the content to be a boolean.</xs:documentation>
</xs:annotation>
<xs:simpleContent>
<xs:restriction base="ValueType">
<xs:simpleType>
<xs:restriction base="xs:boolean" />
</xs:simpleType>
</xs:restriction>
</xs:simpleContent>
</xs:complexType>