python - What is the difference between @types.coroutine and @asyncio.coroutine decorators? -

documentations say:

@asyncio.coroutine

decorator mark generator-based coroutines. enables generator use yield call async def coroutines, , enables generator called async def coroutines, instance using await expression.

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@types.coroutine(gen_func)

this function transforms generator function coroutine function returns generator-based coroutine. generator-based coroutine still generator iterator, considered coroutine object , awaitable. however, may not implement __await__() method.

so seems purposes same - flag generator coroutine (what async defin python3.5 , higher features).

when need use asyncio.coroutine when need use types.coroutine, diffrence?