text: """Support for HLK-SW16 switches."""
  from homeassistant.components.switch import ToggleEntity
  
  from . import DATA_DEVICE_REGISTER, SW16Device
  from .const import DOMAIN
  
  PARALLEL_UPDATES = 0
  
  
  def devices_from_entities(hass, entry):
      """Parse configuration and add HLK-SW16 switch devices."""
      device_client = hass.data[DOMAIN][entry.entry_id][DATA_DEVICE_REGISTER]
      devices = []
      for i in range(16):
          device_port = f"{i:01x}"
          device = SW16Switch(device_port, entry.entry_id, device_client)
          devices.append(device)
      return devices
  
  
  async def async_setup_entry(hass, entry, async_add_entities):
      """Set up the HLK-SW16 platform."""
      async_add_entities(devices_from_entities(hass, entry))
  
  
  class SW16Switch(SW16Device, ToggleEntity):
      """Representation of a HLK-SW16 switch."""
  
      @property
      def is_on(self):
          """Return true if device is on."""
          return self._is_on
  
      async def async_turn_on(self, **kwargs):
          """Turn the device on."""
          await self._client.turn_on(self._device_port)
  
      async def async_turn_off(self, **kwargs):
          """Turn the device off."""
          await self._client.turn_off(self._device_port)
  