@Override
            public void operationComplete(Future future) throws Exception {
                latch.countDown();
            }
Invoke a marshalled {@link Request} using Netty as the transport.

@param marshalledRequest Marshalled request to invoke.
@param b Netty bootstrap to use.
aws-java-sdk-kinesisvideo/src/main/java/com/amazonaws/services/kinesisvideo/AmazonKinesisVideoPutMediaClient.java