auth setPersistence for web

[rsouthgate]

Hey all,
I'm using the lib in an expo app that runs on both native and web. I have gone down the path of just using the native lib since it supports the modules we are using on web seamlessly. But a new feature has come up where we've hit a stumbling block - when on the web the product people want a remember me option so we can change the session persistence. Now if we were using the web library directly we could use the setPersistence method from firebase/auth. Since this isn't supported by the native lib I was hoping I could somehow retrieve the web version of the auth instance through the native library so I can just import and use the web based setPersistence if on web. Or if there is a better way of achieving this then please let me know, but. Ireally don't want to have to swap out the whole lib on web for the js version.
Cheers
Robin