'root' can be used to distinguish serialization roots from other
elements that are present in a serialization but are not roots of
a serialized value graph
Base type of root is boolean. There are several restrictions on the value. The schema processor collapses value's whitespace. The value must match "0|1".
<xs:documentation>
'root' can be used to distinguish serialization roots from other
elements that are present in a serialization but are not roots of
a serialized value graph
</xs:documentation>