How to use Native Android Google Login with Memberstack?

Hi Memberstack Team,

I am wrapping my Webflow website into an Android app (using WebView).

Our Problem: Google blocks web-based OAuth logins inside App WebViews for security reasons. To follow Google's rules, we are using the official Native Android Google Sign-In SDK instead of the web button.

Our Android app successfully logs the user in and gets the Google ID Token.

My Question: How can we pass this native Google Token to Memberstack, so the website inside our app knows the user is logged in?

Is there an API endpoint or a Javascript function where I can just send you this Token, and you automatically log the user into their Memberstack account without showing another web popup?

Thanks!