# File lib/fog/brightbox/config.rb, line 53
      def credentials
        @credentials ||= OAuth2::CredentialSet.new(client_id, client_secret,
                                                   :username => username,
                                                   :password => password,
                                                   :access_token => cached_access_token,
                                                   :refresh_token => cached_refresh_token
                                                  )
      end