public String getTunnelArn() {
        return this.tunnelArn;
    }
<p>
The Amazon Resource Name (ARN) of a tunnel.
</p>

@return The Amazon Resource Name (ARN) of a tunnel.
aws-java-sdk-iotsecuretunneling/src/main/java/com/amazonaws/services/iotsecuretunneling/model/Tunnel.java