def __init__(self, name, description):
        if Registry.get_all_counter_names() in name:
            raise Exception('Counter %s already exists.' % name)

        self._name = name
        self._description = description
        self._value = 0

        Registry.register_counter(self.name, self)
dataset/ETHPy150Open oppia/oppia/core/counters.py/PerfCounter.__init__/swapped operands of `in`