code: def update(self):
          
          graph = Graph()
          graph.parse(data=self.__parent.get_meta_rdf(fmt=self.__fmt), format=self.__fmt)
          self._graph = graph
docs: Gets the latest version of your metadata from the infrastructure and updates your local copy
  
          Returns `True` if successful, `False` otherwise - OR -
  
          Raises [IOTException](./Exceptions.m.html#IoticAgent.IOT.Exceptions.IOTException)
          containing the error if the infrastructure detects a problem
  
          Raises [LinkException](../Core/AmqpLink.m.html#IoticAgent.Core.AmqpLink.LinkException)
          if there is a communications problem between you and the infrastructure