private InternalGatewaySender getInternalGatewaySender() {
    InternalGatewaySender gatewaySender = getInternalAsyncEventQueue().getSender();
    assertThat(gatewaySender).isNotNull();
    return gatewaySender;
  }
Validate whether all the attributes set on AsyncEventQueueFactory are set on the sender
underneath the AsyncEventQueue.
geode-core/src/distributedTest/java/org/apache/geode/internal/cache/wan/asyncqueue/SerialEventListenerDistributedTest.java