governs the flow of a payment interaction between between two parties so there's multiple parts of that there's how do I find the person to connect to them directly which female is one of the potential will be at one of the solutions to that there's how do I get the transaction directly to the miner promptly and find out that it's definitely being accepted the merchant API is a component to that the floral of that even happens though there's the the negotiation between the the merchants are selling and the customer