public static AmazonMTurkAsyncClientBuilder asyncBuilder() {
        return AmazonMTurkAsyncClientBuilder.standard();
    }
Client for accessing Amazon MTurk asynchronously. Each asynchronous method will return a Java Future object
representing the asynchronous operation; overloads which accept an {@code AsyncHandler} can be used to receive
notification when an asynchronous operation completes.
<p>
<fullname>Amazon Mechanical Turk API Reference</fullname>
aws-java-sdk-mechanicalturkrequester/src/main/java/com/amazonaws/services/mturk/AmazonMTurkAsyncClient.java