GMail reading P1

val credential = GoogleAccountCredential.usingOAuth2(
    applicationContext, listOf(GmailScopes.GMAIL_READONLY)
)
    .setBackOff(ExponentialBackOff())
    .setSelectedAccount(
        Account(
            FirebaseAuth.getInstance().currentUser?.email,
            BuildConfig.APPLICATION_ID
        )
    )

val service = Gmail.Builder(
    NetHttpTransport(), AndroidJsonFactory.getDefaultInstance(), credential
)
    .setApplicationName("YourAppName")
    .build()

GlobalScope.launch {
    //do the reading
}