Non valid direction argument in move_panel example?

Based on the [dockview documentation]( https://dockview.dev/docs/core/panels/add#positioning-the-panel ) direction: top does not seem to be a valid argument. However we use direction: top for our example here:
https://github.com/cynkra/dockViewR/blob/main/inst/examples/move_panel/app.R#L67

@DivadNojnarg am I missing something?