@Override
    public java.util.concurrent.Future<DescribeClusterSecurityGroupsResult> describeClusterSecurityGroupsAsync(
            com.amazonaws.handlers.AsyncHandler<DescribeClusterSecurityGroupsRequest, DescribeClusterSecurityGroupsResult> asyncHandler) {

        return describeClusterSecurityGroupsAsync(new DescribeClusterSecurityGroupsRequest(), asyncHandler);
    }
Simplified method form for invoking the DescribeClusterSecurityGroups operation with an AsyncHandler.

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