iOS, How to use GMSCoordinateBounds to show all the markers of the map?

Question

I want to show all the markers that are on my map, after doing some searches I found that it should be done with GMSCoordinateBounds (Google Maps SDK) I\'ve

Answer 1

@IBOutlet weak var mapView: GMSMapView!

let camera = GMSCameraPosition.cameraWithLatitude(23.0793, longitude:  
72.4957, zoom: 5)
mapView.camera = camera
mapView.delegate = self
mapView.myLocationEnabled = true

*** arry has dictionary object which has value of Latitude and Longitude. ***
let path = GMSMutablePath()

for i in 0..