text: """Constants used be the HomeKit component."""
  
  # #### Misc ####
  DEBOUNCE_TIMEOUT = 0.5
  DEVICE_PRECISION_LEEWAY = 6
  DOMAIN = "homekit"
  HOMEKIT_FILE = ".homekit.state"
  HOMEKIT_PAIRING_QR = "homekit-pairing-qr"
  HOMEKIT_PAIRING_QR_SECRET = "homekit-pairing-qr-secret"
  HOMEKIT = "homekit"
  SHUTDOWN_TIMEOUT = 30
  CONF_ENTRY_INDEX = "index"
  
  # ### Codecs ####
  VIDEO_CODEC_COPY = "copy"
  VIDEO_CODEC_LIBX264 = "libx264"
  AUDIO_CODEC_OPUS = "libopus"
  VIDEO_CODEC_H264_OMX = "h264_omx"
  AUDIO_CODEC_COPY = "copy"
  
  # #### Attributes ####
  ATTR_DISPLAY_NAME = "display_name"
  ATTR_VALUE = "value"
  ATTR_INTERGRATION = "platform"
  ATTR_MANUFACTURER = "manufacturer"
  ATTR_MODEL = "model"
  ATTR_SOFTWARE_VERSION = "sw_version"
  ATTR_KEY_NAME = "key_name"
  # Current attribute used by homekit_controller
  ATTR_OBSTRUCTION_DETECTED = "obstruction-detected"
  
  # #### Config ####
  CONF_HOMEKIT_MODE = "mode"
  CONF_ADVERTISE_IP = "advertise_ip"
  CONF_AUDIO_CODEC = "audio_codec"
  CONF_AUDIO_MAP = "audio_map"
  CONF_AUDIO_PACKET_SIZE = "audio_packet_size"
  CONF_AUTO_START = "auto_start"
  CONF_ENTITY_CONFIG = "entity_config"
  CONF_FEATURE = "feature"
  CONF_FEATURE_LIST = "feature_list"
  CONF_FILTER = "filter"
  CONF_EXCLUDE_ACCESSORY_MODE = "exclude_accessory_mode"
  CONF_LINKED_BATTERY_SENSOR = "linked_battery_sensor"
  CONF_LINKED_BATTERY_CHARGING_SENSOR = "linked_battery_charging_sensor"
  CONF_LINKED_DOORBELL_SENSOR = "linked_doorbell_sensor"
  CONF_LINKED_MOTION_SENSOR = "linked_motion_sensor"
  CONF_LINKED_HUMIDITY_SENSOR = "linked_humidity_sensor"
  CONF_LINKED_OBSTRUCTION_SENSOR = "linked_obstruction_sensor"
  CONF_LOW_BATTERY_THRESHOLD = "low_battery_threshold"
  CONF_MAX_FPS = "max_fps"
  CONF_MAX_HEIGHT = "max_height"
  CONF_MAX_WIDTH = "max_width"
  CONF_SAFE_MODE = "safe_mode"
  CONF_ZEROCONF_DEFAULT_INTERFACE = "zeroconf_default_interface"
  CONF_STREAM_ADDRESS = "stream_address"
  CONF_STREAM_SOURCE = "stream_source"
  CONF_SUPPORT_AUDIO = "support_audio"
  CONF_VIDEO_CODEC = "video_codec"
  CONF_VIDEO_MAP = "video_map"
  CONF_VIDEO_PACKET_SIZE = "video_packet_size"
  CONF_STREAM_COUNT = "stream_count"
  
  # #### Config Defaults ####
  DEFAULT_SUPPORT_AUDIO = False
  DEFAULT_AUDIO_CODEC = AUDIO_CODEC_OPUS
  DEFAULT_AUDIO_MAP = "0:a:0"
  DEFAULT_AUDIO_PACKET_SIZE = 188
  DEFAULT_AUTO_START = True
  DEFAULT_EXCLUDE_ACCESSORY_MODE = False
  DEFAULT_LOW_BATTERY_THRESHOLD = 20
  DEFAULT_MAX_FPS = 30
  DEFAULT_MAX_HEIGHT = 1080
  DEFAULT_MAX_WIDTH = 1920
  DEFAULT_PORT = 21063
  DEFAULT_CONFIG_FLOW_PORT = 21064
  DEFAULT_SAFE_MODE = False
  DEFAULT_VIDEO_CODEC = VIDEO_CODEC_LIBX264
  DEFAULT_VIDEO_MAP = "0:v:0"
  DEFAULT_VIDEO_PACKET_SIZE = 1316
  DEFAULT_STREAM_COUNT = 3
  
  # #### Features ####
  FEATURE_ON_OFF = "on_off"
  FEATURE_PLAY_PAUSE = "play_pause"
  FEATURE_PLAY_STOP = "play_stop"
  FEATURE_TOGGLE_MUTE = "toggle_mute"
  
  # #### HomeKit Component Event ####
  EVENT_HOMEKIT_CHANGED = "homekit_state_change"
  EVENT_HOMEKIT_TV_REMOTE_KEY_PRESSED = "homekit_tv_remote_key_pressed"
  
  # #### HomeKit Modes ####
  HOMEKIT_MODE_ACCESSORY = "accessory"
  HOMEKIT_MODE_BRIDGE = "bridge"
  DEFAULT_HOMEKIT_MODE = HOMEKIT_MODE_BRIDGE
  HOMEKIT_MODES = [HOMEKIT_MODE_BRIDGE, HOMEKIT_MODE_ACCESSORY]
  
  # #### HomeKit Component Services ####
  SERVICE_HOMEKIT_START = "start"
  SERVICE_HOMEKIT_RESET_ACCESSORY = "reset_accessory"
  
  # #### String Constants ####
  BRIDGE_MODEL = "Bridge"
  BRIDGE_NAME = "Open Peer Power Bridge"
  SHORT_BRIDGE_NAME = "OPP Bridge"
  SHORT_ACCESSORY_NAME = "OPP Accessory"
  BRIDGE_SERIAL_NUMBER = "homekit.bridge"
  MANUFACTURER = "Open Peer Power"
  
  # #### Switch Types ####
  TYPE_FAUCET = "faucet"
  TYPE_OUTLET = "outlet"
  TYPE_SHOWER = "shower"
  TYPE_SPRINKLER = "sprinkler"
  TYPE_SWITCH = "switch"
  TYPE_VALVE = "valve"
  
  # #### Services ####
  SERV_ACCESSORY_INFO = "AccessoryInformation"
  SERV_AIR_QUALITY_SENSOR = "AirQualitySensor"
  SERV_BATTERY_SERVICE = "BatteryService"
  SERV_CAMERA_RTP_STREAM_MANAGEMENT = "CameraRTPStreamManagement"
  SERV_CARBON_DIOXIDE_SENSOR = "CarbonDioxideSensor"
  SERV_CARBON_MONOXIDE_SENSOR = "CarbonMonoxideSensor"
  SERV_CONTACT_SENSOR = "ContactSensor"
  SERV_DOORBELL = "Doorbell"
  SERV_FANV2 = "Fanv2"
  SERV_GARAGE_DOOR_OPENER = "GarageDoorOpener"
  SERV_HUMIDIFIER_DEHUMIDIFIER = "HumidifierDehumidifier"
  SERV_HUMIDITY_SENSOR = "HumiditySensor"
  SERV_INPUT_SOURCE = "InputSource"
  SERV_LEAK_SENSOR = "LeakSensor"
  SERV_LIGHT_SENSOR = "LightSensor"
  SERV_LIGHTBULB = "Lightbulb"
  SERV_LOCK = "LockMechanism"
  SERV_MOTION_SENSOR = "MotionSensor"
  SERV_OCCUPANCY_SENSOR = "OccupancySensor"
  SERV_OUTLET = "Outlet"
  SERV_SECURITY_SYSTEM = "SecuritySystem"
  SERV_SMOKE_SENSOR = "SmokeSensor"
  SERV_SPEAKER = "Speaker"
  SERV_STATELESS_PROGRAMMABLE_SWITCH = "StatelessProgrammableSwitch"
  SERV_SWITCH = "Switch"
  SERV_TELEVISION = "Television"
  SERV_TELEVISION_SPEAKER = "TelevisionSpeaker"
  SERV_TEMPERATURE_SENSOR = "TemperatureSensor"
  SERV_THERMOSTAT = "Thermostat"
  SERV_VALVE = "Valve"
  SERV_WINDOW = "Window"
  SERV_WINDOW_COVERING = "WindowCovering"
  
  # #### Characteristics ####
  CHAR_ACTIVE = "Active"
  CHAR_ACTIVE_IDENTIFIER = "ActiveIdentifier"
  CHAR_AIR_PARTICULATE_DENSITY = "AirParticulateDensity"
  CHAR_AIR_QUALITY = "AirQuality"
  CHAR_BATTERY_LEVEL = "BatteryLevel"
  CHAR_BRIGHTNESS = "Brightness"
  CHAR_CARBON_DIOXIDE_DETECTED = "CarbonDioxideDetected"
  CHAR_CARBON_DIOXIDE_LEVEL = "CarbonDioxideLevel"
  CHAR_CARBON_DIOXIDE_PEAK_LEVEL = "CarbonDioxidePeakLevel"
  CHAR_CARBON_MONOXIDE_DETECTED = "CarbonMonoxideDetected"
  CHAR_CARBON_MONOXIDE_LEVEL = "CarbonMonoxideLevel"
  CHAR_CARBON_MONOXIDE_PEAK_LEVEL = "CarbonMonoxidePeakLevel"
  CHAR_CHARGING_STATE = "ChargingState"
  CHAR_COLOR_TEMPERATURE = "ColorTemperature"
  CHAR_CONFIGURED_NAME = "ConfiguredName"
  CHAR_CONTACT_SENSOR_STATE = "ContactSensorState"
  CHAR_COOLING_THRESHOLD_TEMPERATURE = "CoolingThresholdTemperature"
  CHAR_CURRENT_AMBIENT_LIGHT_LEVEL = "CurrentAmbientLightLevel"
  CHAR_CURRENT_DOOR_STATE = "CurrentDoorState"
  CHAR_CURRENT_HEATING_COOLING = "CurrentHeatingCoolingState"
  CHAR_CURRENT_HUMIDIFIER_DEHUMIDIFIER = "CurrentHumidifierDehumidifierState"
  CHAR_CURRENT_POSITION = "CurrentPosition"
  CHAR_CURRENT_HUMIDITY = "CurrentRelativeHumidity"
  CHAR_CURRENT_SECURITY_STATE = "SecuritySystemCurrentState"
  CHAR_CURRENT_TEMPERATURE = "CurrentTemperature"
  CHAR_CURRENT_TILT_ANGLE = "CurrentHorizontalTiltAngle"
  CHAR_CURRENT_VISIBILITY_STATE = "CurrentVisibilityState"
  CHAR_DEHUMIDIFIER_THRESHOLD_HUMIDITY = "RelativeHumidityDehumidifierThreshold"
  CHAR_FIRMWARE_REVISION = "FirmwareRevision"
  CHAR_HEATING_THRESHOLD_TEMPERATURE = "HeatingThresholdTemperature"
  CHAR_HUE = "Hue"
  CHAR_HUMIDIFIER_THRESHOLD_HUMIDITY = "RelativeHumidityHumidifierThreshold"
  CHAR_IDENTIFIER = "Identifier"
  CHAR_IN_USE = "InUse"
  CHAR_INPUT_SOURCE_TYPE = "InputSourceType"
  CHAR_IS_CONFIGURED = "IsConfigured"
  CHAR_LEAK_DETECTED = "LeakDetected"
  CHAR_LOCK_CURRENT_STATE = "LockCurrentState"
  CHAR_LOCK_TARGET_STATE = "LockTargetState"
  CHAR_LINK_QUALITY = "LinkQuality"
  CHAR_MANUFACTURER = "Manufacturer"
  CHAR_MODEL = "Model"
  CHAR_MOTION_DETECTED = "MotionDetected"
  CHAR_MUTE = "Mute"
  CHAR_NAME = "Name"
  CHAR_OBSTRUCTION_DETECTED = "ObstructionDetected"
  CHAR_OCCUPANCY_DETECTED = "OccupancyDetected"
  CHAR_ON = "On"
  CHAR_OUTLET_IN_USE = "OutletInUse"
  CHAR_POSITION_STATE = "PositionState"
  CHAR_PROGRAMMABLE_SWITCH_EVENT = "ProgrammableSwitchEvent"
  CHAR_REMOTE_KEY = "RemoteKey"
  CHAR_ROTATION_DIRECTION = "RotationDirection"
  CHAR_ROTATION_SPEED = "RotationSpeed"
  CHAR_SATURATION = "Saturation"
  CHAR_SERIAL_NUMBER = "SerialNumber"
  CHAR_SLEEP_DISCOVER_MODE = "SleepDiscoveryMode"
  CHAR_SMOKE_DETECTED = "SmokeDetected"
  CHAR_STATUS_LOW_BATTERY = "StatusLowBattery"
  CHAR_STREAMING_STRATUS = "StreamingStatus"
  CHAR_SWING_MODE = "SwingMode"
  CHAR_TARGET_DOOR_STATE = "TargetDoorState"
  CHAR_TARGET_HEATING_COOLING = "TargetHeatingCoolingState"
  CHAR_TARGET_POSITION = "TargetPosition"
  CHAR_TARGET_HUMIDIFIER_DEHUMIDIFIER = "TargetHumidifierDehumidifierState"
  CHAR_TARGET_HUMIDITY = "TargetRelativeHumidity"
  CHAR_TARGET_SECURITY_STATE = "SecuritySystemTargetState"
  CHAR_TARGET_TEMPERATURE = "TargetTemperature"
  CHAR_TARGET_TILT_ANGLE = "TargetHorizontalTiltAngle"
  CHAR_HOLD_POSITION = "HoldPosition"
  CHAR_TEMP_DISPLAY_UNITS = "TemperatureDisplayUnits"
  CHAR_VALVE_TYPE = "ValveType"
  CHAR_VOLUME = "Volume"
  CHAR_VOLUME_SELECTOR = "VolumeSelector"
  CHAR_VOLUME_CONTROL_TYPE = "VolumeControlType"
  
  
  # #### Properties ####
  PROP_MAX_VALUE = "maxValue"
  PROP_MIN_VALUE = "minValue"
  PROP_MIN_STEP = "minStep"
  PROP_CELSIUS = {"minValue": -273, "maxValue": 999}
  PROP_VALID_VALUES = "ValidValues"
  
  # #### Device Classes ####
  DEVICE_CLASS_DOOR = "door"
  DEVICE_CLASS_GARAGE_DOOR = "garage_door"
  DEVICE_CLASS_GAS = "gas"
  DEVICE_CLASS_MOISTURE = "moisture"
  DEVICE_CLASS_MOTION = "motion"
  DEVICE_CLASS_OCCUPANCY = "occupancy"
  DEVICE_CLASS_OPENING = "opening"
  DEVICE_CLASS_PM25 = "pm25"
  DEVICE_CLASS_SMOKE = "smoke"
  DEVICE_CLASS_WINDOW = "window"
  
  # #### Thresholds ####
  THRESHOLD_CO = 25
  THRESHOLD_CO2 = 1000
  
  # #### Default values ####
  DEFAULT_MIN_TEMP_WATER_HEATER = 40  # °C
  DEFAULT_MAX_TEMP_WATER_HEATER = 60  # °C
  
  # #### Media Player Key Names ####
  KEY_ARROW_DOWN = "arrow_down"
  KEY_ARROW_LEFT = "arrow_left"
  KEY_ARROW_RIGHT = "arrow_right"
  KEY_ARROW_UP = "arrow_up"
  KEY_BACK = "back"
  KEY_EXIT = "exit"
  KEY_FAST_FORWARD = "fast_forward"
  KEY_INFORMATION = "information"
  KEY_NEXT_TRACK = "next_track"
  KEY_PREVIOUS_TRACK = "previous_track"
  KEY_REWIND = "rewind"
  KEY_SELECT = "select"
  KEY_PLAY_PAUSE = "play_pause"
  
  # #### Door states ####
  HK_DOOR_OPEN = 0
  HK_DOOR_CLOSED = 1
  HK_DOOR_OPENING = 2
  HK_DOOR_CLOSING = 3
  HK_DOOR_STOPPED = 4
  
  # ### Position State ####
  HK_POSITION_GOING_TO_MIN = 0
  HK_POSITION_GOING_TO_MAX = 1
  HK_POSITION_STOPPED = 2
  
  # ### Charging State ###
  HK_NOT_CHARGING = 0
  HK_CHARGING = 1
  HK_NOT_CHARGABLE = 2
  
  # ### Config Options ###
  CONFIG_OPTIONS = [
      CONF_FILTER,
      CONF_AUTO_START,
      CONF_SAFE_MODE,
      CONF_ENTITY_CONFIG,
      CONF_HOMEKIT_MODE,
  ]
  