text: """Support for Rflink switches."""
  import logging
  
  import voluptuous as vol
  
  from homeassistant.components.switch import PLATFORM_SCHEMA, SwitchDevice
  from homeassistant.const import CONF_NAME
  import homeassistant.helpers.config_validation as cv
  
  from . import (
      CONF_ALIASES,
      CONF_DEVICE_DEFAULTS,
      CONF_DEVICES,
      CONF_FIRE_EVENT,
      CONF_GROUP,
      CONF_GROUP_ALIASES,
      CONF_NOGROUP_ALIASES,
      CONF_SIGNAL_REPETITIONS,
      DEVICE_DEFAULTS_SCHEMA,
      SwitchableRflinkDevice,
  )
  
  _LOGGER = logging.getLogger(__name__)
  
  PARALLEL_UPDATES = 0
  
  PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend(
      {
          vol.Optional(
              CONF_DEVICE_DEFAULTS, default=DEVICE_DEFAULTS_SCHEMA({})
          ): DEVICE_DEFAULTS_SCHEMA,
          vol.Optional(CONF_DEVICES, default={}): {
              cv.string: vol.Schema(
                  {
                      vol.Optional(CONF_NAME): cv.string,
                      vol.Optional(CONF_ALIASES, default=[]): vol.All(
                          cv.ensure_list, [cv.string]
                      ),
                      vol.Optional(CONF_GROUP_ALIASES, default=[]): vol.All(
                          cv.ensure_list, [cv.string]
                      ),
                      vol.Optional(CONF_NOGROUP_ALIASES, default=[]): vol.All(
                          cv.ensure_list, [cv.string]
                      ),
                      vol.Optional(CONF_FIRE_EVENT): cv.boolean,
                      vol.Optional(CONF_SIGNAL_REPETITIONS): vol.Coerce(int),
                      vol.Optional(CONF_GROUP, default=True): cv.boolean,
                  }
              )
          },
      },
      extra=vol.ALLOW_EXTRA,
  )
  
  
  def devices_from_config(domain_config):
      """Parse configuration and add Rflink switch devices."""
      devices = []
      for device_id, config in domain_config[CONF_DEVICES].items():
          device_config = dict(domain_config[CONF_DEVICE_DEFAULTS], **config)
          device = RflinkSwitch(device_id, **device_config)
          devices.append(device)
  
      return devices
  
  
  async def async_setup_platform(hass, config, async_add_entities, discovery_info=None):
      """Set up the Rflink platform."""
      async_add_entities(devices_from_config(config))
  
  
  # pylint: disable=too-many-ancestors
  class RflinkSwitch(SwitchableRflinkDevice, SwitchDevice):
      """Representation of a Rflink switch."""
  
      pass
  