code: def chartbeat_bottom(parser, token):
      
      bits = token.split_contents()
      if len(bits) > 1:
          raise TemplateSyntaxError("'%s' takes no arguments" % bits[0])
      return ChartbeatBottomNode()
docs: Bottom Chartbeat template tag.
  
      Render the bottom Javascript code for Chartbeat.  You must supply
      your Chartbeat User ID (as a string) in the ``CHARTBEAT_USER_ID``
      setting.