public InstanceGroupDetail withLastStateChangeReason(String lastStateChangeReason) {
        setLastStateChangeReason(lastStateChangeReason);
        return this;
    }
<p>
Details regarding the state of the instance group.
</p>

@param lastStateChangeReason
       Details regarding the state of the instance group.
@return Returns a reference to this object so that method calls can be chained together.
aws-java-sdk-emr/src/main/java/com/amazonaws/services/elasticmapreduce/model/InstanceGroupDetail.java