old_contents: from django.contrib import admin
  
  from .models import Document, AffidavitTemplate
  
  admin.site.register(Document)
  admin.site.register(AffidavitTemplate)
  
new_contents: from django.contrib import admin
  
  from .models import Document, AffidavitTemplate, Person
  
  admin.site.register(Document)
  admin.site.register(AffidavitTemplate)
  admin.site.register(Person)
  
subject: add Person admin