let adDisplayContainer = IMAAdDisplayContainer(adContainer: player, companionSlots: nil)
// Create an ad request with our ad tag, display container, and optional user context.
let request = IMAAdsRequest(
adTagUrl: self.presenter.videoAdTagUrl,
adDisplayContainer: adDisplayContainer,
contentPlayhead: contentPlayhead,
userContext: nil)
adsLoader?.requestAds(with: request)