@Override
    public DescribeDBInstancesResult describeDBInstances(DescribeDBInstancesRequest request) {
        request = beforeClientExecution(request);
        return executeDescribeDBInstances(request);
    }
<p>
Describes provisioned RDS instances. This API supports pagination.
</p>
<note>
<p>
This operation can also return information for Amazon Neptune DB instances and Amazon DocumentDB instances.
</p>
</note>

@param describeDBInstancesRequest
@return Result of the DescribeDBInstances operation returned by the service.
@throws DBInstanceNotFoundException
        <code>DBInstanceIdentifier</code> doesn't refer to an existing DB instance.
@sample AmazonRDS.DescribeDBInstances
@see <a href="http://docs.aws.amazon.com/goto/WebAPI/rds-2014-10-31/DescribeDBInstances" target="_top">AWS API
     Documentation</a>
aws-java-sdk-rds/src/main/java/com/amazonaws/services/rds/AmazonRDSClient.java