code: def log(self, *args):
          '''
          get/set the internal pipeline log message object.
  
          Caller can further manipulate the log object with object-specific
          calls.
          '''
          if len(args):
              self._log = args[0]
          else:
              return self._lof log(self, *args):
          '''
          get/set the internal pipeline log message object.
  
          Caller can further manipulate the log object with object-specific
          calls.
          '''
          if len(args):
              self._log = args[0]
          else:
              return self._log
docs: get/set the internal pipeline log message object.
  
          Caller can further manipulate the log object with object-specific
          calls.