public static async Task <Statuses> UnsubscribeAsync(this IMessages api, GoogleApiClient client, Android.Gms.Nearby.Messages.MessageListener listener)
 {
     return((await api.Unsubscribe(client, listener)).JavaCast <Statuses> ());
 }
 public static async Task <Statuses> SubscribeAsync(this IMessages api, GoogleApiClient client, Android.Gms.Nearby.Messages.MessageListener listener, Android.Gms.Nearby.Messages.Strategy strategy, Android.Gms.Nearby.Messages.MessageFilter filter)
 {
     return((await api.Subscribe(client, listener, strategy, filter)).JavaCast <Statuses> ());
 }