text: """
  Demo light platform that implements lights.
  
  For more details about this platform, please refer to the documentation
  https://home-assistant.io/components/demo/
  """
  import random
  
  from homeassistant.components.light import (
      ATTR_BRIGHTNESS, ATTR_COLOR_TEMP, ATTR_RGB_COLOR, Light)
  
  LIGHT_COLORS = [
      [237, 224, 33],
      [255, 63, 111],
  ]
  
  LIGHT_TEMPS = [240, 380]
  
  
  def setup_platform(hass, config, add_devices_callback, discovery_info=None):
      """Setup the demo light platform."""
      add_devices_callback([
          DemoLight("Bed Light", False),
          DemoLight("Ceiling Lights", True, LIGHT_COLORS[0], LIGHT_TEMPS[1]),
          DemoLight("Kitchen Lights", True, LIGHT_COLORS[1], LIGHT_TEMPS[0])
      ])
  
  
  class DemoLight(Light):
      """Represenation of a demo light."""
  
      # pylint: disable=too-many-arguments
      def __init__(self, name, state, rgb=None, ct=None, brightness=180):
          """Initialize the light."""
          self._name = name
          self._state = state
          self._rgb = rgb or random.choice(LIGHT_COLORS)
          self._ct = ct or random.choice(LIGHT_TEMPS)
          self._brightness = brightness
  
      @property
      def should_poll(self):
          """No polling needed for a demo light."""
          return False
  
      @property
      def name(self):
          """Return the name of the light if any."""
          return self._name
  
      @property
      def brightness(self):
          """Return the brightness of this light between 0..255."""
          return self._brightness
  
      @property
      def rgb_color(self):
          """Return the RBG color value."""
          return self._rgb
  
      @property
      def color_temp(self):
          """Return the CT color temperature."""
          return self._ct
  
      @property
      def is_on(self):
          """Return true if light is on."""
          return self._state
  
      def turn_on(self, **kwargs):
          """Turn the light on."""
          self._state = True
  
          if ATTR_RGB_COLOR in kwargs:
              self._rgb = kwargs[ATTR_RGB_COLOR]
  
          if ATTR_COLOR_TEMP in kwargs:
              self._ct = kwargs[ATTR_COLOR_TEMP]
  
          if ATTR_BRIGHTNESS in kwargs:
              self._brightness = kwargs[ATTR_BRIGHTNESS]
  
          self.update_ha_state()
  
      def turn_off(self, **kwargs):
          """Turn the light off."""
          self._state = False
          self.update_ha_state()
  