in the process of upgrading from 2.x to 5 and I find my code does not work to add plugin to transport client
// Create new transport client using the Builder pattern
TransportClient.Builder builder = TransportClient.builder();
..more code
builder = builder.addPlugin(shieldPluginClass);
The addPlugin is no longer available. I need to add shieldPluginClass during transportClient. Any ideas or example how I do this in v 5.0?