How to use the pydeconz.utils.async_discovery function in pydeconz

async def test_discovery_response_empty() -> None:
    """Test an empty discovery returns an empty list."""
    session = Mock()

    with patch("pydeconz.utils.async_request", new=CoroutineMock(return_value={})):
        response = await utils.async_discovery(session)

    assert not response

If no bridge is found allow user to manually input configuration.
        """
        if user_input is not None:
            for bridge in self.bridges:
                if bridge[CONF_HOST] == user_input[CONF_HOST]:
                    self.deconz_config = bridge
                    return await self.async_step_link()

            self.deconz_config = user_input
            return await self.async_step_link()

        session = aiohttp_client.async_get_clientsession(self.hass)

        try:
            with async_timeout.timeout(10):
                self.bridges = await async_discovery(session)

        except (asyncio.TimeoutError, ResponseError):
            self.bridges = []

        if len(self.bridges) == 1:
            self.deconz_config = self.bridges[0]
            return await self.async_step_link()

        if len(self.bridges) > 1:
            hosts = []

            for bridge in self.bridges:
                hosts.append(bridge[CONF_HOST])

            return self.async_show_form(
                step_id="init",