public function order_schema_markup($order, $sent_to_admin = false, $plain_text = false)
{
wc_deprecated_function('WC_Emails::order_schema_markup', '2.7', 'WC_Structured_Data::generate_order_data');
WC()->structured_data->generate_order_data($order, $sent_to_admin, $plain_text);
WC()->structured_data->output_structured_data();
}