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

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