tkinter canvas dash

[Akuli]

I have some code that does:

            self._canvas.create_rectangle(
                event.x,
                event.y,
                self._initial_drag_x,
                self._initial_drag_y,
                dash=5,
                outline="black",
                tags="selection_displayer_rect",
            )

It fails to type check, unless I comment out dash=5, but it works at runtime.