text: """
  homeassistant.components.notify.pushetta
  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  Pushetta platform for notify component.
  
  For more details about this platform, please refer to the documentation at
  https://home-assistant.io/components/notify.pushetta/
  """
  import logging
  
  from homeassistant.components.notify import (
      ATTR_TITLE, DOMAIN, BaseNotificationService)
  from homeassistant.const import CONF_API_KEY
  from homeassistant.helpers import validate_config
  
  _LOGGER = logging.getLogger(__name__)
  
  REQUIREMENTS = ['pushetta==1.0.15']
  
  
  def get_service(hass, config):
      """ Get the Pushetta notification service. """
  
      from pushetta import Pushetta, exceptions
  
      if not validate_config({DOMAIN: config},
                             {DOMAIN: [CONF_API_KEY, 'channel_name']},
                             _LOGGER):
          return None
  
      try:
          pushetta = Pushetta(config[CONF_API_KEY])
          pushetta.pushMessage(config['channel_name'], "Home Assistant started")
      except exceptions.TokenValidationError:
          _LOGGER.error("Please check your access token")
          return None
      except exceptions.ChannelNotFoundError:
          _LOGGER.error("Channel '%s' not found", config['channel_name'])
          return None
  
      return PushettaNotificationService(config[CONF_API_KEY],
                                         config['channel_name'])
  
  
  # pylint: disable=too-few-public-methods
  class PushettaNotificationService(BaseNotificationService):
      """ Implements notification service for Pushetta. """
  
      def __init__(self, api_key, channel_name):
  
          from pushetta import Pushetta
  
          self._api_key = api_key
          self._channel_name = channel_name
          self.pushetta = Pushetta(self._api_key)
  
      def send_message(self, message="", **kwargs):
          """ Send a message to a user. """
  
          title = kwargs.get(ATTR_TITLE)
  
          self.pushetta.pushMessage(self._channel_name,
                                    "{} {}".format(title, message))
  