    # File lib/active_merchant/billing/gateways/linkpoint.rb, line 112
          def initialize(options = {})
            requires!(options, :login)

            @options = {
              :result => 'LIVE',
              :pem => LinkpointGateway.pem_file
            }.update(options)

            raise ArgumentError, "You need to pass in your pem file using the :pem parameter or set it globally using ActiveMerchant::Billing::LinkpointGateway.pem_file = File.read( File.dirname(__FILE__) + '/../mycert.pem' ) or similar" if @options[:pem].blank?
          end