public void setGreengrassGroupId(String greengrassGroupId) {
        this.greengrassGroupId = greengrassGroupId;
    }
<p>
The Greengrass group id.
</p>

@param greengrassGroupId
       The Greengrass group id.
aws-java-sdk-robomaker/src/main/java/com/amazonaws/services/robomaker/model/CreateRobotRequest.java