SwiftDocCIntroClassIntroAn introductory section for instructional pages.final class IntroTopicsInstance Propertiesvar content: MarkupContainerThe child markup content.var image: ImageMedia?An optional standout image.let originalMarkup: BlockDirectivevar title: StringThe title of the containing Tutorial.var video: VideoMedia?An optional video, displayed as a modal.Instance Methodsfunc accept<V>(inout V) -> V.ResultType Propertiesstatic let introducedVersion: String