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

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