@Override
    public DescribeMatchmakingRuleSetsResult describeMatchmakingRuleSets(DescribeMatchmakingRuleSetsRequest request) {
        request = beforeClientExecution(request);
        return executeDescribeMatchmakingRuleSets(request);
    }
<p>
Retrieves the details for FlexMatch matchmaking rule sets. You can request all existing rule sets for the Region,
or provide a list of one or more rule set names. When requesting multiple items, use the pagination parameters to
retrieve results as a set of sequential pages. If successful, a rule set is returned for each requested name.
</p>
<p>
<b>Learn more</b>
</p>
<ul>
<li>
<p>
<a href="https://docs.aws.amazon.com/gamelift/latest/flexmatchguide/match-rulesets.html">Build a rule set</a>
</p>
</li>
</ul>

@param describeMatchmakingRuleSetsRequest
@return Result of the DescribeMatchmakingRuleSets operation returned by the service.
@throws InvalidRequestException
        One or more parameter values in the request are invalid. Correct the invalid parameter values before
        retrying.
@throws InternalServiceException
        The service encountered an unrecoverable internal failure while processing the request. Clients can retry
        such requests immediately or after a waiting period.
@throws NotFoundException
        THe requested resources was not found. The resource was either not created yet or deleted.
@throws UnsupportedRegionException
        The requested operation is not supported in the Region specified.
@sample AmazonGameLift.DescribeMatchmakingRuleSets
@see <a href="http://docs.aws.amazon.com/goto/WebAPI/gamelift-2015-10-01/DescribeMatchmakingRuleSets"
     target="_top">AWS API Documentation</a>
aws-java-sdk-gamelift/src/main/java/com/amazonaws/services/gamelift/AmazonGameLiftClient.java