# File lib/omniauth/strategies/saml/auth_response.rb, line 14
        def initialize(response, options = {})
          raise ArgumentError.new("Response cannot be nil") if response.nil?
          self.options  = options
          self.response = response
          self.document = OmniAuth::Strategies::SAML::XMLSecurity::SignedDocument.new(Base64.decode64(response))
        end