@Override
    protected AmazonPinpointSMSVoiceV2Async build(AwsAsyncClientParams params) {
        return new AmazonPinpointSMSVoiceV2AsyncClient(params);
    }
Construct an asynchronous implementation of AmazonPinpointSMSVoiceV2Async using the current builder
configuration.

@param params
       Current builder configuration represented as a parameter object.
@return Fully configured implementation of AmazonPinpointSMSVoiceV2Async.
aws-java-sdk-pinpointsmsvoicev2/src/main/java/com/amazonaws/services/pinpointsmsvoicev2/AmazonPinpointSMSVoiceV2AsyncClientBuilder.java