public void setGreengrassGroupName(String greengrassGroupName) {
        this.greengrassGroupName = greengrassGroupName;
    }
<p>
The ID of the Greengrass group where the system instance is deployed.
</p>

@param greengrassGroupName
       The ID of the Greengrass group where the system instance is deployed.
aws-java-sdk-iotthingsgraph/src/main/java/com/amazonaws/services/iotthingsgraph/model/SystemInstanceSummary.java