<classSpec ident="att.medium" module="MEI.shared" type="atts">
<desc xml:lang="en">Attributes describing a writing medium, such as pencil or ink.</desc>
<attList>
<attDef ident="medium" usage="opt">
<desc xml:lang="en">Describes the writing medium.</desc>
<datatype>
<rng:data type="string"/>
</datatype>
</attDef>
</attList>
</classSpec>