src/Versioned.php
public function isArchived()
    {
        $id = $this->owner->ID ?: $this->owner->OldID;
        return $id && !$this->isOnDraft() && !$this->isPublished();
    }
public function isArchived()
    {
        $id = $this->owner->ID ?: $this->owner->OldID;
        return $id && !$this->isOnDraft() && !$this->isPublished();
    }
public function isArchived ( ) { $ id = $ this -> owner -> ID ? : $ this -> owner -> OldID ; return $ id && ! $ this -> isOnDraft ( ) && ! $ this -> isPublished ( ) ; }
Check if page doesn't exist on any stage, but used to be

@return bool
Check if page doesn t exist on any stage but used to be