MKRoadWidthAtZoomScale

objc2_map_kit

Function MKRoadWidthAtZoomScale 

Source 
pub unsafe extern "C-unwind" fn MKRoadWidthAtZoomScale(
    zoom_scale: MKZoomScale,
) -> CGFloat
Available on crate features MKGeometry and MKOverlayRenderer and objc2-core-foundation only.