from collections.abc import Awaitable

from inspect import CO_ITERABLE_COROUTINE

from types import CoroutineType

from types import GeneratorType

async def do_await(obj):

return await obj

def do_yield_from(gen):

return (yield from gen)

def await_(obj):

obj_type = type(obj)

if (

obj_type is CoroutineType

or (obj_type is GeneratorType and bool(obj.gi_code.co_flags & CO_ITERABLE_COROUTINE))

or isinstance(obj, Awaitable)

):

return do_await(obj).__await__()

else:

return do_yield_from(obj)

def __aiter__(self):

return self.__wrapped__.__aiter__()

async def __anext__(self):

return await self.__wrapped__.__anext__()

def __await__(self):

return await_(self.__wrapped__)

def __aenter__(self):

return self.__wrapped__.__aenter__()

def __aexit__(self, *args, **kwargs):

return self.__wrapped__.__aexit__(*args, **kwargs)

def identity(obj):

return obj

class cached_property:

def __init__(self, func):

self.func = func

def __get__(self, obj, cls):

if obj is None:

return self

value = obj.__dict__[self.func.__name__] = self.func(obj)

return value