public String getPlacementGroup() {
        return this.placementGroup;
    }
<p>
The name of the placement group into which to launch your instances. For more information, see <a
href="https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/placement-groups.html">Placement groups</a> in the
<i>Amazon EC2 User Guide for Linux Instances</i>.
</p>
<note>
<p>
A <i>cluster</i> placement group is a logical grouping of instances within a single Availability Zone. You cannot
specify multiple Availability Zones and a cluster placement group.
</p>
</note>

@return The name of the placement group into which to launch your instances. For more information, see <a
        href="https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/placement-groups.html">Placement groups</a> in
        the <i>Amazon EC2 User Guide for Linux Instances</i>.</p> <note>
        <p>
        A <i>cluster</i> placement group is a logical grouping of instances within a single Availability Zone.
        You cannot specify multiple Availability Zones and a cluster placement group.
        </p>
aws-java-sdk-autoscaling/src/main/java/com/amazonaws/services/autoscaling/model/CreateAutoScalingGroupRequest.java