<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def runGetReadGroupSet(self, id_):
 """ Returns a readGroupSet with the given id_ """

        compoundId = datamodel.ReadGroupSetCompoundId.parse(id_)
        dataset = self.getDataRepository().getDataset(compoundId.dataset_id)
        readGroupSet = dataset.getReadGroupSet(id_)
        return self.runGetRequest(readGroupSet)