<form xmlns="http://www.w3.org/1999/xhtml"
      xmlns:py="http://genshi.edgewall.org/"
      xmlns:xi="http://www.w3.org/2001/XInclude"
      name="$name"
      id="$name"
      method="$method"
      action="$action"
      enctype="$enctype"
      py:attrs="attrs">
  <py:if test="value">
    You are currently subscribed to this ${thing}.
    <br/>
    ${fields['unsubscribe'].display()}
  </py:if>
  <py:if test="not value">
    You are currently not subscribed to this ${thing}.
    <br/>
    ${fields['subscribe'].display()}
  </py:if>
</form>
