TOTP Custom Period

There is no way of specifying the TOTP period. Our University is using 60s period totp token. Hence it is possible to use a token-secret file for authentication.

sudo openconnect vpn.tu.com -u user@tu.com --token-mode=totp --token-secret=/run/secrets/tuvpn-totp-secret --dump-http-traffic

I would be great if this use-case could be supported.