code: public com.google.appengine.v1.ScriptHandler getScript() {
      if (handlerTypeCase_ == 3) {
         return (com.google.appengine.v1.ScriptHandler) handlerType_;
      }
      return com.google.appengine.v1.ScriptHandler.getDefaultInstance();
    }
docs: <pre>
  Executes a script to handle the request that matches this URL
  pattern.
  </pre>
  
  <code>.google.appengine.v1.ScriptHandler script = 3;</code>