# File lib_ctrl/rucy/params.rb, line 792
      def virtual_host=(new_host)
        case (new_host)
        when NilClass
          @attrs['virtual_host'] = nil
        when String
          if (new_host.strip.empty?) then
            @attrs['virtual_host'] = nil
          else
            @attrs['virtual_host'] = new_host
          end
        else
          raise "not a string for virtual_host: #{new_host.inspect}"
        end
      end