<element name="requestLimits">
      <attribute name="maxAllowedContentLength" type="uint" defaultValue="30000000" />
      <attribute name="maxUrl" type="uint" defaultValue="4096" />
      <attribute name="maxQueryString" type="uint" defaultValue="2048" />
      <element name="headerLimits">
        <collection addElement="add" clearElement="clear" removeElement="remove" >
          <attribute name="header" type="string" required="true" isUniqueKey="true" validationType="nonEmptyString" />
          <attribute name="sizeLimit" type="uint" required="true" />
        </collection>
      </element>