def self.down
    update_type(RenameRapnsToRpush::Rpush::Notification, 'Rpush::Apns::Notification', 'Rapns::Apns::Notification')
    update_type(RenameRapnsToRpush::Rpush::Notification, 'Rpush::Gcm::Notification', 'Rapns::Gcm::Notification')
    update_type(RenameRapnsToRpush::Rpush::Notification, 'Rpush::Adm::Notification', 'Rapns::Adm::Notification')
    update_type(RenameRapnsToRpush::Rpush::Notification, 'Rpush::Wpns::Notification', 'Rapns::Wpns::Notification')