docs: def _CheckIfHuntTaskWasAssigned(self, client_id, hunt_id):
      """Will return True if hunt's task was assigned to this client before."""
      client_urn = rdfvalue.RDFURN(client_id)
      for _ in aff4.FACTORY.Stat([
          client_urn.Add("flows/%s:hunt" % rdfvalue.RDFURN(hunt_id).Basename())
      ]):
        return True
  
      return False