WC_Email_Customer_Invoice::__construct PHP Метод

        public function __construct()
        {
            $this->id = 'customer_invoice';
            $this->title = __('Customer invoice', 'woocommerce');
            $this->description = __('Customer invoice emails can be sent to customers containing their order information and payment links.', 'woocommerce');
            $this->template_html = 'emails/customer-invoice.php';
            $this->template_plain = 'emails/plain/customer-invoice.php';
            $this->subject = __('Invoice for order {order_number} from {order_date}', 'woocommerce');
            $this->heading = __('Invoice for order {order_number}', 'woocommerce');
            $this->subject_paid = __('Your {site_title} order from {order_date}', 'woocommerce');
            $this->heading_paid = __('Order {order_number} details', 'woocommerce');
            // Call parent constructor
            parent::__construct();
            $this->customer_email = true;
            $this->manual = true;
            $this->heading_paid = $this->get_option('heading_paid', $this->heading_paid);
            $this->subject_paid = $this->get_option('subject_paid', $this->subject_paid);
        }