| import attr | |
| @attr.s(kw_only=True) | |
| class Base1: | |
| a = attr.ib(type=int) | |
| @attr.s | |
| class Derived1(Base1): | |
| b = attr.ib(type=int) | |
| Derived1(<arg1>) | |
| @attr.s(kw_only=True) | |
| class Base2: | |
| a = attr.ib(type=int) | |
| @attr.s | |
| class Derived2(Base2): | |
| b = attr.ib(type=int, default=1) | |
| Derived2(<arg2>) | |
| @attr.s(kw_only=True) | |
| class Base3: | |
| a = attr.ib(type=int, default=1) | |
| @attr.s | |
| class Derived3(Base3): | |
| b = attr.ib(type=int) | |
| Derived3(<arg3>) | |
| @attr.s(kw_only=True) | |
| class Base4: | |
| a = attr.ib(type=int, default=1) | |
| @attr.s | |
| class Derived4(Base4): | |
| b = attr.ib(type=int, default=1) | |
| Derived4(<arg4>) |