SwiftDocCSemanticSemantic.AnalysesSemantic.Analyses.HasContentStructureSemantic.Analyses.HasContentChecks to see if a directive has child markup content.struct HasContent<Parent> where Parent : Semantic, Parent : DirectiveConvertibleTopicsInitializersinit(additionalContext: String?)Instance Methodsfunc analyze(BlockDirective, children: some Sequence<any Markup>, source: URL?, problems: inout [Problem]) -> MarkupContainer