code: public void startEval() throws IOException {
          startChangesIfNecessary();
          ResponseWriter writer = getWrapped();
          writer.startElement("eval", null);
          writer.startCDATA();
      }
docs: <p class="changed_added_2_0">Write the start of an eval operation.</p>
  
  @throws IOException if an input/output error occurs
  @since 2.0