How to use the aiomultiprocess.Worker function in aiomultiprocess

async def test_worker_join(self):
        # test results from join
        p = amp.Worker(target=sleepypid)
        p.start()
        self.assertEqual(await p.join(), p.pid)

        # test awaiting p directly, no need to start
        p = amp.Worker(target=sleepypid)
        self.assertEqual(await p, p.pid)

async def test_spawn_context(self):
        with self.assertRaises(ValueError):
            amp.set_context("foo")

        async def inline(x):
            return x

        amp.set_context("spawn")

        with self.assertRaises(AttributeError):
            p = amp.Worker(target=inline, args=(1,), name="test_inline")
            p.start()
            await p.join()

        p = amp.Worker(target=two, name="test_global")
        p.start()
        await p.join()

        values = list(range(10))
        results = [await mapper(i) for i in values]
        async with amp.Pool(2) as pool:
            self.assertEqual(await pool.map(mapper, values), results)

        self.assertEqual(p.result, 2)

async def test_worker_join(self):
        # test results from join
        p = amp.Worker(target=sleepypid)
        p.start()
        self.assertEqual(await p.join(), p.pid)

        # test awaiting p directly, no need to start
        p = amp.Worker(target=sleepypid)
        self.assertEqual(await p, p.pid)

async def test_worker(self):
        p = amp.Worker(target=sleepypid)
        p.start()
        await p.join()

        self.assertFalse(p.is_alive())
        self.assertEqual(p.result, p.pid)

async def test_spawn_context(self):
        with self.assertRaises(ValueError):
            amp.set_context("foo")

        async def inline(x):
            return x

        amp.set_context("spawn")

        with self.assertRaises(AttributeError):
            p = amp.Worker(target=inline, args=(1,), name="test_inline")
            p.start()
            await p.join()

        p = amp.Worker(target=two, name="test_global")
        p.start()
        await p.join()

        values = list(range(10))
        results = [await mapper(i) for i in values]
        async with amp.Pool(2) as pool:
            self.assertEqual(await pool.map(mapper, values), results)

        self.assertEqual(p.result, 2)