purchase (ActiveMerchant::Billing::AuthorizeNetGateway)

    # File lib/active_merchant/billing/gateways/authorize_net.rb, line 103
          def purchase(money, creditcard, options = {})
            post = {}
            add_invoice(post, options)
            add_creditcard(post, creditcard)
            add_address(post, options)
            add_customer_data(post, options)
            add_duplicate_window(post)

            commit('AUTH_CAPTURE', money, post)
          end