@Override
    public java.util.concurrent.Future<GetExperimentTemplateResult> getExperimentTemplateAsync(GetExperimentTemplateRequest request) {

        return getExperimentTemplateAsync(request, null);
    }
Abstract implementation of {@code AWSFISAsync}. Convenient method forms pass through to the corresponding overload
that takes a request object and an {@code AsyncHandler}, which throws an {@code UnsupportedOperationException}.
aws-java-sdk-fis/src/main/java/com/amazonaws/services/fis/AbstractAWSFISAsync.java