Extensions The following extensions are available globally. CGRect Undocumented See more CLLocationCoordinate2D Undocumented See more Collection See more Declaration Swift protocol Collection : Sequence MinMaxLatLon See more Declaration Swift struct MinMaxLatLon MKCoordinateRegion Undocumented See more MKMapRect Undocumented See more MKMapSize Undocumented See more MKOverlayPathRenderer Undocumented See more MKPolygon Undocumented See more MKTileOverlayPath Undocumented See more