', '' ); } elseif ( ! Module_Registry::is_pro_active() ) { return sprintf( /* translators: 1: Opening strong tag, 2: Closing strong tag. */ __( '%1$sUnlock advanced system tools.%2$s Get more powerful email, workflow, integration, and administration capabilities with Admin Optimizer Pro.', 'admin-optimizer' ), '', '' ); } else { return $message; } }, 10, 2 ); } /** * Ordinary module IDs this Section owns, mapped to their navigation labels. * * @return array */ protected function section_nav_modules(): array { return [ 'custom_code' => 'Add Custom Code', 'smtp_mail' => 'Email & SMTP', 'site_traffic_manager' => 'Site Traffic Manager', ]; } }