def METHOD_NAME(self):
    special_operators = _SpecialOperatorsDict()
    assert special_operators._unique_id == 0
    assert special_operators._get_unique_id() == 1
    assert special_operators._unique_id == 1
    assert special_operators._get_unique_id() == 2
    assert special_operators._unique_id == 2
    assert special_operators._get_unique_id() == 3
    assert special_operators._unique_id == 3