public String getGroupId() {
        return this.groupId;
    }
<p>
The Group ID of the placement group. You must specify the Placement Group <b>Group ID</b> to launch an instance
in a shared placement group.
</p>

@return The Group ID of the placement group. You must specify the Placement Group <b>Group ID</b> to launch an
        instance in a shared placement group.
aws-java-sdk-ec2/src/main/java/com/amazonaws/services/ec2/model/LaunchTemplatePlacement.java