def set_before(self, command_name, command_name_prev):
        self._register(command_name)
        self._register(command_name_prev)
        if not command_name_prev in self.before[command_name]:
            self.before[command_name].append(command_name_prev)
Set command_name_prev to be run before command_name
dataset/ETHPy150Open cournape/Bento/bento/commands/dependency.py/CommandScheduler.set_before