Trying to use "FusedLocationProviderClient" in Xamarin.Android to get user location.

MainActivity.cs

using Android.Locations;
using Android.App;
using Android.OS;
using Android.Runtime;
using System;
using System.Collections.Generic;
using System.Linq;
using Android.Util;
using Android.Widget;
using Android.Gms.Common;
using Android.Gms.Location;

namespace locator
{
    [Activity(Label = "locator", MainLauncher = true)]
    public class MainActivity : Activity
    {
        FusedLocationProviderClient fusedLocationProvider; // "FusedLocationProviderClient" does not exist in current context.
        protected override void OnCreate(Bundle savedInstanceState)
        {
            base.OnCreate(savedInstanceState);
            SetContentView(Resource.Layout.Main);
        }        

        private bool PlayServicesStatus()
        {
            var result = GoogleApiAvailability.Instance.IsGooglePlayServicesAvailable(this);
            if (result == ConnectionResult.Success)
                return true;
            if (GoogleApiAvailability.Instance.IsUserResolvableError(result))
            {
                string error = GoogleApiAvailability.Instance.GetErrorString(result);
                Toast.MakeText(this, error, ToastLength.Short).Show();
            }

            return false;
        }
    }
}