square pulse in google map?

[fukemy]

Can you help?

let markerView = UIImageView(image: GMSMarker.markerImage(with: UIColor.red))
            marker.iconView = markerView

let pulsator = Pulsator()
                    pulsator.numPulse = 3
                    pulsator.radius = 240.0
                    pulsator.repeatCount = .infinity
                    marker.iconView?.layer.insertSublayer(pulsator, above: marker.iconView?.layer)
                    pulsator.position = (marker.iconView?.layer.position)!
                    pulsator.start()

[fukemy]