Function is_code 

pub fn is_code(p: &Posted, words: &Words) -> bool

Whether a notification hands over a code or asks for an approval now: a code as mail gives one (codes::detect); words asking for an approval (a sign-in, a payment, an identity to confirm); “is this you?” beside what it is about (a friend’s “is this you on the photo?” is none); a channel named for codes or sign-ins (Proton Mail’s “login” channel). Read folded (case and accents aside), as whole words (words::Approvals).