SwiftDocCXcodeRequirementReferenceStructureXcodeRequirementReferenceA reference to a version of Xcode that users of your documentation must use.struct XcodeRequirementReferenceTopicsInitializersinit(from: any Decoder) throwsinit(identifier: RenderReferenceIdentifier, title: String, url: URL)Creates a reference to a version of Xcode that users of your documentation must use.Instance Propertieslet identifier: RenderReferenceIdentifierlet title: StringA presentation-friendly title for the version of Xcode required for users of your documentation.var type: RenderReferenceTypelet url: URLA download URL for the version of Xcode required for users of your documentation.