public String getGreengrassGroupName() {
        return this.greengrassGroupName;
    }
<p>
The name of the Greengrass group where the system instance will be deployed. This value is required if the value
of the <code>target</code> parameter is <code>GREENGRASS</code>.
</p>

@return The name of the Greengrass group where the system instance will be deployed. This value is required if
        the value of the <code>target</code> parameter is <code>GREENGRASS</code>.
aws-java-sdk-iotthingsgraph/src/main/java/com/amazonaws/services/iotthingsgraph/model/CreateSystemInstanceRequest.java