def _RunGC(self):
    # After each action we can run the garbage collection to reduce our memory
    # footprint a bit. We don't do it too frequently though since this is
    # a bit expensive.
    now = rdfvalue.RDFDatetime().Now()
    if self._last_gc_run - now > self._gc_frequency:
      gc.collect()
      self._last_gc_run = now
dataset/ETHPy150Open google/grr/grr/client/actions.py/ActionPlugin._RunGC/swapped operands of `-`