<?xml version="1.0" encoding="UTF-8"?>
<letter>
  <content nil="true"></content>
  <created-at type="datetime" nil="true"></created-at>
  <email nil="true"></email>
  <from nil="true"></from>
  <name nil="true"></name>
  <to nil="true"></to>
  <updated-at type="datetime" nil="true"></updated-at>
  <userid nil="true"></userid>
</letter>
