'Send a message to a user.'

def send_message(self, message='', **kwargs):

    title = kwargs.get(ATTR_TITLE, ATTR_TITLE_DEFAULT)
    data = ('{}:    {}'.format(title, message) if title else message)
    send_message('{}/home-assistant'.format(self._sender), self._password, self._recipient, self._tls, data)
