public String getTargetGroupArn() {
        return this.targetGroupArn;
    }
<p>
The Amazon Resource Name (ARN) of the target group. Specify only when <code>Type</code> is <code>forward</code>
and you want to route to a single target group. To route to one or more target groups, use
<code>ForwardConfig</code> instead.
</p>

@return The Amazon Resource Name (ARN) of the target group. Specify only when <code>Type</code> is
        <code>forward</code> and you want to route to a single target group. To route to one or more target
        groups, use <code>ForwardConfig</code> instead.
aws-java-sdk-elasticloadbalancingv2/src/main/java/com/amazonaws/services/elasticloadbalancingv2/model/Action.java