@Override
    protected AWSElasticBeanstalkAsync build(AwsAsyncClientParams params) {
        return new AWSElasticBeanstalkAsyncClient(params);
    }
Construct an asynchronous implementation of AWSElasticBeanstalkAsync using the current builder configuration.

@param params
       Current builder configuration represented as a parameter object.
@return Fully configured implementation of AWSElasticBeanstalkAsync.
aws-java-sdk-elasticbeanstalk/src/main/java/com/amazonaws/services/elasticbeanstalk/AWSElasticBeanstalkAsyncClientBuilder.java