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

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