def METHOD_NAME(self):
    recv = mitogen.core.Receiver(self.router)
    self.assertIsInstance(recv.handle, int)
    self.assertGreater(recv.handle, 100)
    self.router.route(
        mitogen.core.Message.pickled(
            'hi',
            dst_id=0,
            handle=recv.handle,
        )
    )
    self.assertEqual('hi', recv.get().unpickle())