docs: static KeyStore getKeyStore(OperationContext context) throws OperationFailedException {
          ServiceRegistry serviceRegistry = context.getServiceRegistry(true);
          PathAddress currentAddress = context.getCurrentAddress();
          RuntimeCapability<Void> runtimeCapability = KEY_STORE_RUNTIME_CAPABILITY.fromBaseCapability(currentAddress.getLastElement().getValue());
          ServiceName serviceName = runtimeCapability.getCapabilityServiceName();
          ServiceController<KeyStore> serviceController = getRequiredService(serviceRegistry, serviceName, KeyStore.class);
  
          return Assert.assertNotNull(serviceController.getValue());
      }