[jammycrisp]

Integrating `dataclass` more into the language builtins might be nice, if only that it may allow/encourage a more native and performant implementation. Using a dataclass right now results in slightly slower class operations than handwritten types, and much slower import times.

I maintain another dataclass-like library[1] that's written fully as a C extension. Moving this code to C means these types are typically 5-10x faster for common operations[2]. It'd be nice if the builtin dataclasses were equally performant.

[1]: https://github.com/jcrist/msgspec

[2]: https://jcristharif.com/msgspec/benchmarks.html#benchmark-st...