old_contents: """Simplepush notification service."""
  from simplepush import send, send_encrypted
  import voluptuous as vol
  
  from homeassistant.components.notify import (
      ATTR_TITLE,
      ATTR_TITLE_DEFAULT,
      PLATFORM_SCHEMA,
      BaseNotificationService,
  )
  from homeassistant.const import CONF_PASSWORD
  import homeassistant.helpers.config_validation as cv
  
  ATTR_ENCRYPTED = "encrypted"
  
  CONF_DEVICE_KEY = "device_key"
  CONF_EVENT = "event"
  CONF_SALT = "salt"
  
  PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend(
      {
          vol.Required(CONF_DEVICE_KEY): cv.string,
          vol.Optional(CONF_EVENT): cv.string,
          vol.Inclusive(CONF_PASSWORD, ATTR_ENCRYPTED): cv.string,
          vol.Inclusive(CONF_SALT, ATTR_ENCRYPTED): cv.string,
      }
  )
  
  
  def get_service(hass, config, discovery_info=None):
      """Get the Simplepush notification service."""
      return SimplePushNotificationService(config)
  
  
  class SimplePushNotificationService(BaseNotificationService):
      """Implementation of the notification service for Simplepush."""
  
      def __init__(self, config):
          """Initialize the Simplepush notification service."""
          self._device_key = config.get(CONF_DEVICE_KEY)
          self._event = config.get(CONF_EVENT)
          self._password = config.get(CONF_PASSWORD)
          self._salt = config.get(CONF_SALT)
  
      def send_message(self, message="", **kwargs):
          """Send a message to a Simplepush user."""
  
          title = kwargs.get(ATTR_TITLE, ATTR_TITLE_DEFAULT)
  
          if self._password:
              send_encrypted(
                  self._device_key,
                  self._password,
                  self._salt,
                  title,
                  message,
                  event=self._event,
              )
          else:
              send(self._device_key, title, message, event=self._event)
  
new_contents: """Simplepush notification service."""
  from simplepush import send, send_encrypted
  import voluptuous as vol
  
  from homeassistant.components.notify import (
      ATTR_TITLE,
      ATTR_TITLE_DEFAULT,
      PLATFORM_SCHEMA,
      BaseNotificationService,
  )
  from homeassistant.const import CONF_EVENT, CONF_PASSWORD
  import homeassistant.helpers.config_validation as cv
  
  ATTR_ENCRYPTED = "encrypted"
  
  CONF_DEVICE_KEY = "device_key"
  CONF_SALT = "salt"
  
  PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend(
      {
          vol.Required(CONF_DEVICE_KEY): cv.string,
          vol.Optional(CONF_EVENT): cv.string,
          vol.Inclusive(CONF_PASSWORD, ATTR_ENCRYPTED): cv.string,
          vol.Inclusive(CONF_SALT, ATTR_ENCRYPTED): cv.string,
      }
  )
  
  
  def get_service(hass, config, discovery_info=None):
      """Get the Simplepush notification service."""
      return SimplePushNotificationService(config)
  
  
  class SimplePushNotificationService(BaseNotificationService):
      """Implementation of the notification service for Simplepush."""
  
      def __init__(self, config):
          """Initialize the Simplepush notification service."""
          self._device_key = config.get(CONF_DEVICE_KEY)
          self._event = config.get(CONF_EVENT)
          self._password = config.get(CONF_PASSWORD)
          self._salt = config.get(CONF_SALT)
  
      def send_message(self, message="", **kwargs):
          """Send a message to a Simplepush user."""
          title = kwargs.get(ATTR_TITLE, ATTR_TITLE_DEFAULT)
  
          if self._password:
              send_encrypted(
                  self._device_key,
                  self._password,
                  self._salt,
                  title,
                  message,
                  event=self._event,
              )
          else:
              send(self._device_key, title, message, event=self._event)
  
subject: Use core constants for simplepush (#46465)