text: """Switches for the Elexa Guardian integration."""
  from aioguardian.errors import GuardianError
  
  from homeassistant.components.switch import SwitchEntity
  from homeassistant.core import callback
  
  from . import Guardian, GuardianEntity
  from .const import DATA_CLIENT, DATA_VALVE_STATUS, DOMAIN, LOGGER, SWITCH_KIND_VALVE
  
  ATTR_AVG_CURRENT = "average_current"
  ATTR_INST_CURRENT = "instantaneous_current"
  ATTR_INST_CURRENT_DDT = "instantaneous_current_ddt"
  ATTR_TRAVEL_COUNT = "travel_count"
  
  
  async def async_setup_entry(hass, entry, async_add_entities):
      """Set up Guardian switches based on a config entry."""
      guardian = hass.data[DOMAIN][DATA_CLIENT][entry.entry_id]
      async_add_entities([GuardianSwitch(guardian)], True)
  
  
  class GuardianSwitch(GuardianEntity, SwitchEntity):
      """Define a switch to open/close the Guardian valve."""
  
      def __init__(self, guardian: Guardian):
          """Initialize."""
          super().__init__(guardian, SWITCH_KIND_VALVE, "Valve", None, "mdi:water")
  
          self._is_on = True
  
      @property
      def is_on(self):
          """Return True if the valve is open."""
          return self._is_on
  
      @callback
      def _update_from_latest_data(self):
          """Update the entity."""
          self._is_on = self._guardian.data[DATA_VALVE_STATUS]["state"] in (
              "start_opening",
              "opening",
              "finish_opening",
              "opened",
          )
  
          self._attrs.update(
              {
                  ATTR_AVG_CURRENT: self._guardian.data[DATA_VALVE_STATUS][
                      "average_current"
                  ],
                  ATTR_INST_CURRENT: self._guardian.data[DATA_VALVE_STATUS][
                      "instantaneous_current"
                  ],
                  ATTR_INST_CURRENT_DDT: self._guardian.data[DATA_VALVE_STATUS][
                      "instantaneous_current_ddt"
                  ],
                  ATTR_TRAVEL_COUNT: self._guardian.data[DATA_VALVE_STATUS][
                      "travel_count"
                  ],
              }
          )
  
      async def async_turn_off(self, **kwargs) -> None:
          """Turn the valve off (closed)."""
          try:
              async with self._guardian.client:
                  await self._guardian.client.valve.valve_close()
          except GuardianError as err:
              LOGGER.error("Error while closing the valve: %s", err)
              return
  
          self._is_on = False
  
      async def async_turn_on(self, **kwargs) -> None:
          """Turn the valve on (open)."""
          try:
              async with self._guardian.client:
                  await self._guardian.client.valve.valve_open()
          except GuardianError as err:
              LOGGER.error("Error while opening the valve: %s", err)
              return
  
          self._is_on = True
  