'Send a message to a user.'

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

    from pushetta import exceptions
    title = kwargs.get(ATTR_TITLE, ATTR_TITLE_DEFAULT)
    try:
        self.pushetta.pushMessage(self._channel_name, '{}    {}'.format(title, message))
    except exceptions.TokenValidationError:
        _LOGGER.error('Please    check    your    access    token')
        self.is_valid = False
    except exceptions.ChannelNotFoundError:
        _LOGGER.error("Channel    '%s'    not    found", self._channel_name)
        self.is_valid = False
