decls 

identifies one or more declarable elements within the header, which are
understood to apply to the element bearing this attribute and its
content.

Attribute Information

Used By

Attribute Group tei:att.declaring.attribute.decls

Source 

<xs:attribute name="decls">
  <xs:annotation>
    <xs:documentation>identifies one or more declarable elements within the header, which are understood to apply to the element bearing this attribute and its content.</xs:documentation>
  </xs:annotation>
  <xs:simpleType>
    <xs:restriction>
      <xs:simpleType>
        <xs:list itemType="xs:anyURI"/>
      </xs:simpleType>
      <xs:minLength value="1"/>
    </xs:restriction>
  </xs:simpleType>
</xs:attribute>

Sample