@Override
    public StartCompositionResult startComposition(StartCompositionRequest request) {
        request = beforeClientExecution(request);
        return executeStartComposition(request);
    }
<p>
Starts a Composition from a stage based on the configuration provided in the request.
</p>
<p>
A Composition is an ephemeral resource that exists after this endpoint returns successfully. Composition stops
and the resource is deleted:
</p>
<ul>
<li>
<p>
When <a>StopComposition</a> is called.
</p>
</li>
<li>
<p>
After a 1-minute timeout, when all participants are disconnected from the stage.
</p>
</li>
<li>
<p>
After a 1-minute timeout, if there are no participants in the stage when StartComposition is called.
</p>
</li>
<li>
<p>
When broadcasting to the IVS channel fails and all retries are exhausted.
</p>
</li>
<li>
<p>
When broadcasting is disconnected and all attempts to reconnect are exhausted.
</p>
</li>
</ul>

@param startCompositionRequest
@return Result of the StartComposition operation returned by the service.
@throws ResourceNotFoundException
@throws ValidationException
@throws AccessDeniedException
@throws InternalServerException
@throws ServiceQuotaExceededException
@throws ConflictException
@throws PendingVerificationException
@sample AmazonIVSRealTime.StartComposition
@see <a href="http://docs.aws.amazon.com/goto/WebAPI/ivs-realtime-2020-07-14/StartComposition" target="_top">AWS
     API Documentation</a>
aws-java-sdk-ivsrealtime/src/main/java/com/amazonaws/services/ivsrealtime/AmazonIVSRealTimeClient.java