public void LoadUrlForACustomPlayer()
{
//this can be a reference to the custom video player, avpro component for examploe
//First register the event callback referencing the custom player function, then call the youtube player to load.
player.OnYoutubeUrlAreReady.AddListener(customPlayer.Play);
player.LoadUrl("https://www.youtube.com/watch?v=l0U7SxXHkPY");
}
