code: def read_config(*args):
      '''
      Read Traffic Server configuration variable definitions.
  
      .. versionadded:: 2016.11.0
  
      .. code-block:: bash
  
          salt '*' trafficserver.read_config proxy.config.http.keep_alive_post_out
      '''
  
      ret = {}
      if _TRAFFICCTL:
          cmd = _traffic_ctl('config', 'get')
      else:
          cmd = _traffic_line('-r')
  
      try:
          for arg in args:
              log.debug('Querying: %s', arg)
              ret[arg] = _subprocess(cmd + [arg])
      except KeyError:
          pass
  
      return ref read_config(*args):
      '''
      Read Traffic Server configuration variable definitions.
  
      .. versionadded:: 2016.11.0
  
      .. code-block:: bash
  
          salt '*' trafficserver.read_config proxy.config.http.keep_alive_post_out
      '''
  
      ret = {}
      if _TRAFFICCTL:
          cmd = _traffic_ctl('config', 'get')
      else:
          cmd = _traffic_line('-r')
  
      try:
          for arg in args:
              log.debug('Querying: %s', arg)
              ret[arg] = _subprocess(cmd + [arg])
      except KeyError:
          pass
  
      return ret
docs: Read Traffic Server configuration variable definitions.
  
      .. versionadded:: 2016.11.0
  
      .. code-block:: bash
  
          salt '*' trafficserver.read_config proxy.config.http.keep_alive_post_out