# Use dataclasses with "kw_only" (PBR004) This rule will enforce that you use the `kw_only` parameter in every dataclass decorator. This will force the developer to set all dataclass attributes as kwargs instead of args, which is more explicit and easier to refactor. *Wrong:* ```python from dataclasses import dataclass @dataclass class MyDataClass: pass ``` *Correct:* ```python from dataclasses import dataclass @dataclass(kw_only=True) class MyDataClass: pass ```