Set multiple markers and image on google map swift 3

 let locations = [

                    ["title": "Phase 11, Mohali", "latitude": 30.680177, "longitude": 76.745705],

                    ["title": "Phase 6, Mohali", "latitude": 30.735547, "longitude": 76.712071],

                    ["title": "Phase 106, Mohali", "latitude": 30.728100, "longitude": 76.717665]

                ]

        

                for location in locations {

                    let marker = GMSMarker()

                    marker.position = CLLocationCoordinate2D(latitude: location["latitude"] as! Double, longitude: location["longitude"] as! Double)

                  //  state_marker2.snippet = "Phase 106, Mohali."

                    marker.title = location["title"] as? String

                    //For image

//                    let markerImage = UIImage(named: "Web")!.withRenderingMode(.alwaysTemplate)

//                  let markerView = UIImageView(image: markerImage)

//                   marker.iconView = markerView

                    marker.map = gmsMapViewOut

                }