```ruby
class RemoveIpTrackingFromPublishers < ActiveRecord::Migration[5.2]
  def change
    remove_column :publishers, :current_sign_in_ip
    remove_column :publishers, :last_sign_in_ip
  end
end
```

Add type to allow reverse of 20190222204716
user
```ruby
class RemoveIpTrackingFromPublishers < ActiveRecord::Migration[5.2]
  def change
    remove_column :publishers, :current_sign_in_ip, :inet
    remove_column :publishers, :last_sign_in_ip, :inet
  end
end
```
assistant