readAttributeChildRoleCount(completionHandler:)
Declaration
func readAttributeChildRoleCount(completionHandler: @escaping @Sendable (NSNumber?, (any Error)?) -> Void)func readAttributeChildRoleCount() async throws -> NSNumberfunc readAttributeChildRoleCount(completionHandler: @escaping @Sendable (NSNumber?, (any Error)?) -> Void)func readAttributeChildRoleCount() async throws -> NSNumber