def METHOD_NAME(self, request):
    timing = Timing(self)
    timing.start()
    batch = Batch()
    roi = request[self.graph].roi.copy()
    graph = GraphSource.create_gp_graph_from_daisy(self.graph_provider, roi)
    batch.graphs[self.graph] = graph
    timing.stop()
    batch.profiling_stats.add(timing)
    return batch