This was a valid XML in CalendarServer-5.2.2. It used to be 'user' now its 'record'

I could have a UID as 'gauravj'

<directory realm="Test Realm">
  <record>
    <uid>0C8BDE62-E600-4696-83D3-8B5ECABDFD2E</uid>
    <guid>0C8BDE62-E600-4696-83D3-8B5ECABDFD2E</guid>
    <short-name>admin</short-name>
    <password>admin</password>
    <full-name>Super User</full-name>
    <email>admin@example.com</email>
  </record>
  <record>
    <uid>gauravj</uid>
    <guid>gauravj</guid>
    <password>some_password</password>
    <email>gauravj@example.com</email>
    <full-name>G J</full-name>
    <short-name>G</short-name>
  </record>
</directory>