public void setSummary(SystemInstanceSummary summary) {
        this.summary = summary;
    }
<p>
An object that contains summary information about a system instance.
</p>

@param summary
       An object that contains summary information about a system instance.
aws-java-sdk-iotthingsgraph/src/main/java/com/amazonaws/services/iotthingsgraph/model/SystemInstanceDescription.java