@Override
    public java.util.concurrent.Future<DescribeHsmConfigurationsResult> describeHsmConfigurationsAsync(DescribeHsmConfigurationsRequest request) {

        return describeHsmConfigurationsAsync(request, null);
    }
Simplified method form for invoking the DescribeHsmClientCertificates operation with an AsyncHandler.

@see #describeHsmClientCertificatesAsync(DescribeHsmClientCertificatesRequest,
     com.amazonaws.handlers.AsyncHandler)
aws-java-sdk-redshift/src/main/java/com/amazonaws/services/redshift/AmazonRedshiftAsyncClient.java