Publish library with

sbt "release"

Import library with:

libraryDependencies += "com.gu" %% "social-signin" % "<latest-version>"

Code example:

val idToken = IDToken("YXNkZmFzZGZhc2RmYXNk)
val googleClientID = GoogleClientID("10001")

GoogleOpenIDConnect.fetchSocialUser(idToken, googleClientID).map(_).getOrElse("")