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

@param tunnelArn
       The Amazon Resource Name (ARN) of a tunnel.
@return Returns a reference to this object so that method calls can be chained together.
aws-java-sdk-iotsecuretunneling/src/main/java/com/amazonaws/services/iotsecuretunneling/model/Tunnel.java