async def contextmanager_in_threadpool(
    cm: AbstractContextManager[_T],
) -> AsyncGenerator[_T, None]:
    # blocking __exit__ from running waiting on a free thread
    # can create race conditions/deadlocks if the context manager itself
    # has its own internal pool (e.g. a database connection pool)
    # to avoid this we let __exit__ run without a capacity limit
    # since we're creating a new limiter for each call, any non-zero limit

class MySuperContextManager:
    def __init__(self):
        self.db = DBSession()

    def __enter__(self):
        return self.db

    def __exit__(self, exc_type, exc_value, traceback):
        self.db.close()


async def get_db():
    with MySuperContextManager() as db:

Motov Yurii <******@****.***> 1766745782 +0100

Felix Böhm <******@****.***> 1596909678 +0200

Motov Yurii <******@****.***> 1766745782 +0100

Motov Yurii <******@****.***> 1766745782 +0100

Motov Yurii <******@****.***> 1766745782 +0100

Motov Yurii <******@****.***> 1766745782 +0100

Sebastián Ramírez <******@****.***> 1544255767 +0400

Sebastián Ramírez <******@****.***> 1554458040 +0400