Example using class method in protocol

example.swift

protocol FileSaver {
    class func savePath() -> String
    func saveFile() 
    var isSaved: Bool { set get }
}

class VideoDocumentStorage : FileSave {
    class func savePath() { "Videopath" }
    
    func saveFile() {
       //Save file using savePath()
       self.isSaved = true
    }
}