create_manager (Discovery)

    # File lib/yadis/manager.rb, line 97
      def create_manager(services, yadis_url=nil)
        if self.get_manager
          raise ArgumentError, "There is already a manager for #{@url}"
        end

        if services.length > 0
          manager = YadisServiceManager.new(@url, yadis_url, services)
          self.store_manager(manager)
        else
          manager = nil
        end

        return manager
      end