Hello All! I am a future app developer for MacOS within SwiftUI. Currently learning and designing an app, though I wanted some help and advice within for example: @interface AVPlayer : NSObject I don't understand what it means? - Does anyone have a clear explanation or a video I could watch? Please find the link below from where I found this, also it's things like the declaration for .play() or .skip() etc.. #StillLearning https://developer.apple.com/documentation/avfoundation/avplayer?language=occ