text: """BleBox sensor entities."""
  from homeassistant.components.sensor import SensorEntity
  from homeassistant.config_entries import ConfigEntry
  from homeassistant.core import HomeAssistant
  from homeassistant.helpers.entity_platform import AddEntitiesCallback
  
  from . import BleBoxEntity, create_blebox_entities
  from .const import BLEBOX_TO_HASS_DEVICE_CLASSES, BLEBOX_TO_UNIT_MAP
  
  
  async def async_setup_entry(
      hass: HomeAssistant,
      config_entry: ConfigEntry,
      async_add_entities: AddEntitiesCallback,
  ) -> None:
      """Set up a BleBox entry."""
  
      create_blebox_entities(
          hass, config_entry, async_add_entities, BleBoxSensorEntity, "sensors"
      )
  
  
  class BleBoxSensorEntity(BleBoxEntity, SensorEntity):
      """Representation of a BleBox sensor feature."""
  
      def __init__(self, feature):
          """Initialize a BleBox sensor feature."""
          super().__init__(feature)
          self._attr_native_unit_of_measurement = BLEBOX_TO_UNIT_MAP[feature.unit]
          self._attr_device_class = BLEBOX_TO_HASS_DEVICE_CLASSES[feature.device_class]
  
      @property
      def native_value(self):
          """Return the state."""
          return self._feature.current
  