shape property

Drawable geometry of the route (may be null).

Shares PTShape instances with PTStopInfo.shapes. Null when shapes were not requested (see PTStopScheduleFilter.shapes) or the route has no drawable shape — the static has_shape schedule flag can be true while no geometry is available, so null here is the authoritative "not drawable" signal. Always null on PTTrip.route instances — the shape lives on the stop catalogue's routes (PTStop.routes).