@Override
    public ListInstanceFleetsResult listInstanceFleets(ListInstanceFleetsRequest request) {
        request = beforeClientExecution(request);
        return executeListInstanceFleets(request);
    }
<p>
Lists all available details about the instance fleets in a cluster.
</p>
<note>
<p>
The instance fleet configuration is available only in Amazon EMR releases 4.8.0 and later, excluding 5.0.x
versions.
</p>
</note>

@param listInstanceFleetsRequest
@return Result of the ListInstanceFleets operation returned by the service.
@throws InternalServerException
        This exception occurs when there is an internal failure in the Amazon EMR service.
@throws InvalidRequestException
        This exception occurs when there is something wrong with user input.
@sample AmazonElasticMapReduce.ListInstanceFleets
@see <a href="http://docs.aws.amazon.com/goto/WebAPI/elasticmapreduce-2009-03-31/ListInstanceFleets"
     target="_top">AWS API Documentation</a>
aws-java-sdk-emr/src/main/java/com/amazonaws/services/elasticmapreduce/AmazonElasticMapReduceClient.java