Order email template override in magento 2

Question

Am trying to override the sales order email and I did that override but I have doubt in code, In that email template they called variable like

{{var payment_html|raw}}

in payment methods, I want to know in which file this variable is calling please tell me.

Answer 1

You can find payment_html in: \Magento\Sales\Model\Order\Email\Sender\OrderSender::prepareTemplate()