def _unregister_proc(self, proc):
    self._active_processes.discard(proc)
Asserts that running a command returns zero.
dataset/ETHPy150Open ucb-sts/sts/sts/entities/controllers.py/Controller._unregister_proc--crossover with--dataset/ETHPy150Open catkin/catkin_tools/tests/utils.py/assert_cmd_success