<AssignMessage name="Multiple-Add">
  <Add>
    <Headers>
      <Header name='something'>hereyago</Header>
    </Headers>
 </Add>
  <Add>
    <FormParams>
      <FormParam name='whee'>checkit</FormParam>
    </FormParams>
 </Add>
 <IgnoreUnresolvedVariables>true</IgnoreUnresolvedVariables>
</AssignMessage>
