# File lib/active_merchant/billing/gateways/beanstream.rb, line 71
      def purchase(money, source, options = {})
        post = {}
        add_amount(post, money) 
        add_invoice(post, options)
        add_source(post, source)
        add_address(post, options)
        add_transaction_type(post, purchase_action(source))
        commit(post)
      end