This template renders the acquirer button with all necessary values. It is be rendered with qWeb with the following evaluation context:

• tx_url: transaction URL to post the form
• acquirer: payment.acquirer browse record
• user: current user browse record
• reference: the transaction reference number
• currency: the transaction currency browse record
• amount: the transaction amount, a float
• partner: the buyer partner browse record, not necessarily set
• partner_values: specific values about the buyer, for example coming from a shipping form
• tx_values: transaction values
• context: the current context dictionary