improve micropython.decos

[Josverl]

• viper
• native
• asm_thumb

https://realpython.com/primer-on-python-decorators/#fancy-decorators

import functools
from typing import List, Callable

def native2(_func=None, *args, **kwargs):
    """native emitter that returns a proper type."""
    def wrapper_outer(func):
        @functools.wraps(func)
        def wrapper_inner(*args, **kwargs): ...
        return wrapper_inner
    return wrapper_outer

but better in typing

simplified to 👍🏻
def viper(_func: Callable[_Param, _Ret], /) -> Callable[_Param, _Ret]:

resolved in 2a87840

[Josverl]

reference stubs updates to :

from typing import Any, Callable
from typing_extensions import ParamSpec, TypeVar

_Param = ParamSpec("_Param")
_Ret = TypeVar("_Ret")

...
def native(_func: Callable[_Param, _Ret], /) -> Callable[_Param, _Ret]:
    ...

def asm_thumb(_func: Callable[_Param, _Ret], /) -> Callable[_Param, _Ret]:
    ...

def asm_xtensa(_func: Callable[_Param, _Ret], /) -> Callable[_Param, _Ret]:
    ...

requires micropython-stubber==1.24.1 to process the ParamSpec