public AlarmState withSystemEvent(SystemEvent systemEvent) {
        setSystemEvent(systemEvent);
        return this;
    }
<p>
Contains information about alarm state changes.
</p>

@param systemEvent
       Contains information about alarm state changes.
@return Returns a reference to this object so that method calls can be chained together.
aws-java-sdk-ioteventsdata/src/main/java/com/amazonaws/services/ioteventsdata/model/AlarmState.java