WC_Email_Customer_Completed_Order::__construct PHP Method

        public function __construct()
        {
            $this->id = 'customer_completed_order';
            $this->customer_email = true;
            $this->title = __('Completed order', 'woocommerce');
            $this->description = __('Order complete emails are sent to customers when their orders are marked completed and usually indicate that their orders have been shipped.', 'woocommerce');
            $this->heading = __('Your order is complete', 'woocommerce');
            $this->subject = __('Your {site_title} order from {order_date} is complete', 'woocommerce');
            $this->template_html = 'emails/customer-completed-order.php';
            $this->template_plain = 'emails/plain/customer-completed-order.php';
            // Triggers for this email
            add_action('woocommerce_order_status_completed_notification', array($this, 'trigger'));
            // Other settings
            $this->heading_downloadable = $this->get_option('heading_downloadable', __('Your order is complete - download your files', 'woocommerce'));
            $this->subject_downloadable = $this->get_option('subject_downloadable', __('Your {site_title} order from {order_date} is complete - download your files', 'woocommerce'));
            // Call parent constuctor
            parent::__construct();
        }