text: """Support for monitoring a Sense energy sensor device."""
  import logging
  
  from homeassistant.components.binary_sensor import (
      BinarySensorDeviceClass,
      BinarySensorEntity,
  )
  from homeassistant.const import ATTR_ATTRIBUTION
  from homeassistant.core import callback
  from homeassistant.helpers.dispatcher import async_dispatcher_connect
  from homeassistant.helpers.entity_registry import async_get_registry
  
  from .const import (
      ATTRIBUTION,
      DOMAIN,
      MDI_ICONS,
      SENSE_DATA,
      SENSE_DEVICE_UPDATE,
      SENSE_DEVICES_DATA,
      SENSE_DISCOVERED_DEVICES_DATA,
  )
  
  _LOGGER = logging.getLogger(__name__)
  
  
  async def async_setup_entry(hass, config_entry, async_add_entities):
      """Set up the Sense binary sensor."""
      data = hass.data[DOMAIN][config_entry.entry_id][SENSE_DATA]
      sense_devices_data = hass.data[DOMAIN][config_entry.entry_id][SENSE_DEVICES_DATA]
      sense_monitor_id = data.sense_monitor_id
  
      sense_devices = hass.data[DOMAIN][config_entry.entry_id][
          SENSE_DISCOVERED_DEVICES_DATA
      ]
      devices = [
          SenseDevice(sense_devices_data, device, sense_monitor_id)
          for device in sense_devices
          if device["tags"]["DeviceListAllowed"] == "true"
      ]
  
      await _migrate_old_unique_ids(hass, devices)
  
      async_add_entities(devices)
  
  
  async def _migrate_old_unique_ids(hass, devices):
      registry = await async_get_registry(hass)
      for device in devices:
          # Migration of old not so unique ids
          old_entity_id = registry.async_get_entity_id(
              "binary_sensor", DOMAIN, device.old_unique_id
          )
          if old_entity_id is not None:
              _LOGGER.debug(
                  "Migrating unique_id from [%s] to [%s]",
                  device.old_unique_id,
                  device.unique_id,
              )
              registry.async_update_entity(old_entity_id, new_unique_id=device.unique_id)
  
  
  def sense_to_mdi(sense_icon):
      """Convert sense icon to mdi icon."""
      return "mdi:{}".format(MDI_ICONS.get(sense_icon, "power-plug"))
  
  
  class SenseDevice(BinarySensorEntity):
      """Implementation of a Sense energy device binary sensor."""
  
      def __init__(self, sense_devices_data, device, sense_monitor_id):
          """Initialize the Sense binary sensor."""
          self._name = device["name"]
          self._id = device["id"]
          self._sense_monitor_id = sense_monitor_id
          self._unique_id = f"{sense_monitor_id}-{self._id}"
          self._icon = sense_to_mdi(device["icon"])
          self._sense_devices_data = sense_devices_data
          self._state = None
          self._available = False
  
      @property
      def is_on(self):
          """Return true if the binary sensor is on."""
          return self._state
  
      @property
      def available(self):
          """Return the availability of the binary sensor."""
          return self._available
  
      @property
      def name(self):
          """Return the name of the binary sensor."""
          return self._name
  
      @property
      def unique_id(self):
          """Return the unique id of the binary sensor."""
          return self._unique_id
  
      @property
      def old_unique_id(self):
          """Return the old not so unique id of the binary sensor."""
          return self._id
  
      @property
      def extra_state_attributes(self):
          """Return the state attributes."""
          return {ATTR_ATTRIBUTION: ATTRIBUTION}
  
      @property
      def icon(self):
          """Return the icon of the binary sensor."""
          return self._icon
  
      @property
      def device_class(self):
          """Return the device class of the binary sensor."""
          return BinarySensorDeviceClass.POWER
  
      @property
      def should_poll(self):
          """Return the deviceshould not poll for updates."""
          return False
  
      async def async_added_to_hass(self):
          """Register callbacks."""
          self.async_on_remove(
              async_dispatcher_connect(
                  self.hass,
                  f"{SENSE_DEVICE_UPDATE}-{self._sense_monitor_id}",
                  self._async_update_from_data,
              )
          )
  
      @callback
      def _async_update_from_data(self):
          """Get the latest data, update state. Must not do I/O."""
          new_state = bool(self._sense_devices_data.get_device_by_id(self._id))
          if self._available and self._state == new_state:
              return
          self._available = True
          self._state = new_state
          self.async_write_ha_state()
  