Add support for unique_id

DEFAULT_NAME = "SmartIR Media Player"

CONF_UNIQUE_ID = 'unique_id'

CONF_DEVICE_CODE = 'device_code'

CONF_CONTROLLER_SEND_SERVICE = "controller_send_service"

CONF_POWER_SENSOR = 'power_sensor'

PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({

    vol.Optional(CONF_UNIQUE_ID): cv.string,

    vol.Optional(CONF_NAME, default=DEFAULT_NAME): cv.string,

    vol.Required(CONF_DEVICE_CODE): cv.positive_int,

    vol.Required(CONF_CONTROLLER_SEND_SERVICE): cv.entity_id,

async def async_setup_platform(hass, config, async_add_entities, discovery_info=None):

    """Set up the IR Media Player platform."""

    unique_id = config.get(CONF_UNIQUE_ID)

    name = config.get(CONF_NAME)

    device_code = config.get(CONF_DEVICE_CODE)

    controller_send_service = config.get(CONF_CONTROLLER_SEND_SERVICE)

            return

    async_add_entities([SmartIRMediaPlayer(

        hass, name, device_code, device_data, controller_send_service, 

        power_sensor

        hass, unique_id, name, device_code, device_data, 

        controller_send_service, power_sensor

    )])

class SmartIRMediaPlayer(MediaPlayerDevice, RestoreEntity):

    def __init__(self, hass, name, device_code, device_data, 

                 controller_send_service, power_sensor):

    def __init__(self, hass, unique_id, name, device_code, 

                 device_data, controller_send_service, power_sensor):

        self.hass = hass

        self._unique_id = unique_id

        self._name = name

        self._device_code = device_code

        self._controller_send_service = controller_send_service

        """Push an update after each command."""

        return True

    @property

    def unique_id(self):

        """Return a unique ID."""

        return self._unique_id

    @property

    def name(self):

        """Return the name of the media player."""