code: def get_named_graph(identifier, store_id=DEFAULT_STORE, create=True):
      
      if not isinstance(identifier, URIRef):
          identifier = URIRef(identifier)
  
      store = DjangoStore(store_id)
      graph = Graph(store, identifier=identifier)
      if graph.open(None, create=create) != VALID_STORE:
          raise ValueError("The store identified by {0} is not a valid store".format(store_id))
      return graph
docs: Returns an open named graph.