title: Animating GMSMapView
body: <p>I tried all the animation methods provided by google maps. But I fail to animate the zoomlevel of map view. I have tried mapView.animateToZoom(15). Also </p>
  
  <pre><code>UIView.animateWithDuration(5.0, animations: {
                      let zoomIn = GMSCameraUpdate.zoomTo(15)
                      self.mapView.animateToZoom(15)
                  })
  </code></pre>
  
  <p>But I fail to achieve the animation. I also followed <a href="https://stackoverflow.com/questions/30898937/gmsmapview-animatetocameraposition-zoom-in-zoom-out-animation">GMSMapView animateToCameraPosition zoom in - zoom out animation</a></p>
  
  <p>But no hope. Can anyone help please?</p>