public TunnelOption withStartupAction(String startupAction) {
        setStartupAction(startupAction);
        return this;
    }
<p>
The action to take when the establishing the VPN tunnels for a VPN connection.
</p>

@param startupAction
       The action to take when the establishing the VPN tunnels for a VPN connection.
@return Returns a reference to this object so that method calls can be chained together.
aws-java-sdk-ec2/src/main/java/com/amazonaws/services/ec2/model/TunnelOption.java