<type>String</type>
        </field>
        <field>
          <name>configuration</name>
          <type>DOM</type>
          <description>
            Extra configuration for the transport layer.
          </description>
        </field>
      </fields>
    </class>
    <class>
      <name>Mirror</name>
      <version>1.0.0+</version>
      <superClass>IdentifiableBase</superClass>