# File lib/fog/brightbox/storage/authentication_request.rb, line 12
        def authenticate
          response = authentication_request

          self.access_token = response.headers["X-Auth-Token"]
          self.management_url = response.headers["X-Server-Management-Url"] || response.headers["X-Storage-Url"]
          self
        rescue Excon::Errors::Unauthorized => error
          raise Fog::Brightbox::Storage::AuthenticationRequired.slurp(error)
        end