code: protected String endLayerModules(HttpServletRequest request, Object arg) {
  		// Save module list in request attribute for processing during {@code END_RESPONSE}
  		request.setAttribute(ADD_REQUIRE_DEPS_REQATTRNAME, arg);
  		return "}});require({cache:{}});"; //$NON-NLS-1$
  	}
docs: Handles the
  {@link com.ibm.jaggr.core.transport.IHttpTransport.LayerContributionType#END_LAYER_MODULES}
  layer listener event.
  
  @param request
  the http request object
  @param arg
  the set of required modules
  @return the layer contribution