def block(self):
    self._currently_blocked = True
Gather unique suite objects from loaded things. This will guarantee
dataset/ETHPy150Open ucb-sts/sts/sts/util/deferred_io.py/DeferredIOWorker.block--crossover with--dataset/ETHPy150Open nlloyd/SubliminalCollaborator/libs/twisted/trial/runner.py/TestLoader._uniqueTests