code: public OvhVpn serviceName_vpn_POST(String serviceName, String clientIp, String clientPrivNet, String psk, String serverPrivNet) throws IOException {
  		String qPath = "/router/{serviceName}/vpn";
  		StringBuilder sb = path(qPath, serviceName);
  		HashMap<String, Object>o = new HashMap<String, Object>();
  		addBody(o, "clientIp", clientIp);
  		addBody(o, "clientPrivNet", clientPrivNet);
  		addBody(o, "psk", psk);
  		addBody(o, "serverPrivNet", serverPrivNet);
  		String resp = exec(qPath, "POST", sb.toString(), o);
  		return convertTo(resp, OvhVpn.class);
  	}
docs: Add a VPN to your router
  
  REST: POST /router/{serviceName}/vpn
  @param serverPrivNet [required] Server's private network
  @param psk [required] Your PSK key
  @param clientIp [required] IP you will be connecting from / NULL (allow all)
  @param clientPrivNet [required] Client's private network
  @param serviceName [required] The internal name of your Router offer