How to compose flags while using `(set-config-flags ...)` function?

[sakurawald]

It's okay to set one single flags using

    (set-config-flags :flag-window-resizable)

However, how can i compose multi falgs and set them?

I would like to use something like

(set-config-flags :flag-window-resizable :flag-window-topmost)

Or i have to use this ?

(set-window-state (logior #x00000004 #x00001000))