from johnny.cache import get_backend
from itertools import wraps

def use_johnny(func):
    @wraps(func)
    def wrapper(*args, **kwargs):
        be = get_backend()
        be.patch()
        try:
            return func(*args, **kwargs)
        except:
            raise
        finally:
            be.unpatch()
    return wrapper

@use_johnny
def my_orm_using_thing():
    pass