Specify whether to document the form of the attribute name (i.e. if it should be namespace-qualified or not).
All globally declared attributes have namespace-qualified names.
For locally declared attributes, their namespace qualification is specified by the 'form'
attribute of the attribute component. When that attribute is absent, its default value is defined by the
'attributeFormDefault'
attribute of the parent <xs:schema>
.
Possible Choices:
"any"
'form'
attribute. (No default value of that attribute will be documented.)