    # File lib/fog/identity.rb, line 8
        def self.new(attributes)
          attributes = attributes.dup # Prevent delete from having side effects
          case provider = attributes.delete(:provider).to_s.downcase.to_sym
          when :rackspace
            require 'fog/rackspace/identity'
            Fog::Rackspace::Identity.new(attributes)
          when :openstack
            require 'fog/openstack/identity'
            Fog::Identity::OpenStack.new(attributes)
          else
            raise ArgumentError.new("#{provider} has no identity service")
          end
        end