<tagsDecl>

<tagsDecl> (tagging declaration) provides detailed information about the tagging applied to a document. [2.3.4. The Tagging Declaration 2.3. The Encoding Description]
Module header
Attributes Attributes att.global (xml:id, n, xml:lang) (lim.att.global.fragmentable (part)) (att.global.rendition (rendition)) (att.global.source (source))
partial indicates whether the element types listed exhaustively include all those found within text, or represent only a subset.
Status Recommended
Datatype teidata.truthValue
Note
TEI recommended practice is to specify this attribute. When the tagUsage elements inside tagsDecl are used to list each of the element types in the associated text, the value should be given as false. When the tagUsage elements inside tagsDecl are used to provide usage information or default renditions for only a subset of the elements types within the associated text, the value should be true.
Member of
Contained by
header: encodingDesc
May contain
header: rendition
Examples

<tagsDecl partial="true">
   
<rendition xml:id="rend-it" scheme="css" selector="emph, hi, name, title">font-style: italic;</rendition>
   
<namespace name="http://www.tei-c.org/ns/1.0">
      
<tagUsage gi="hi" occurs="467"/>
      
<tagUsage gi="title" occurs="45"/>
   
</namespace>
   
<namespace name="http://docbook.org/ns/docbook">
      
<tagUsage gi="para" occurs="10"/>
   
</namespace>
</tagsDecl>
If the partial attribute were not specified here, the implication would be that the document in question contains only hi, title, and para elements.
Source Github

<elementSpec module="header" ident="tagsDecl">
   
<gloss>tagging declaration</gloss>
   
<desc>provides detailed information about the tagging applied to a document.</desc>
   
<classes>
      
<memberOf key="att.global"/>
      
<memberOf key="model.encodingDescPart"/>
   
</classes>
   
<content>
      
<sequence>
         
<elementRef key="rendition" minOccurs="0" maxOccurs="unbounded"/>
         
<elementRef key="namespace" minOccurs="0" maxOccurs="unbounded"/>
      
</sequence>
   
</content>
   
<attList>
      
<attDef ident="partial" usage="rec">
         
<desc>indicates whether
  the element types listed exhaustively include all those found
  within 
<gi>text</gi>, or represent only a subset.</desc>
         
<datatype minOccurs="1" maxOccurs="1">
            
<dataRef key="teidata.truthValue"/>
         
</datatype>
      
</attDef>
   
</attList>
</elementSpec>