How to use the aiormq.tools.LazyCoroutine function in aiormq

async def test_coro(self, event_loop):
        async def foo():
            await asyncio.sleep(0)
            return 42

        bar = LazyCoroutine(foo)

        assert await bar == 42

) -> DrainResult:
        if not self.connection.basic_nack:
            raise exc.MethodNotImplemented

        self.writer.write(
            pamqp.frame.marshal(
                spec.Basic.Nack(
                    delivery_tag=delivery_tag,
                    multiple=multiple,
                    requeue=requeue,
                ),
                self.number,
            )
        )

        return LazyCoroutine(self.connection.drain)

def basic_reject(self, delivery_tag, *, requeue=True) -> DrainResult:
        self.writer.write(
            pamqp.frame.marshal(
                spec.Basic.Reject(delivery_tag=delivery_tag, requeue=requeue),
                self.number,
            )
        )

        return LazyCoroutine(self.connection.drain)

def basic_ack(self, delivery_tag, multiple=False) -> DrainResult:
        self.writer.write(
            pamqp.frame.marshal(
                spec.Basic.Ack(delivery_tag=delivery_tag, multiple=multiple),
                self.number,
            )
        )

        return LazyCoroutine(self.connection.drain)