Check that required config are set.
        :raises :class:`~responsebot.common.exceptions.MissingConfigError`: if a required config is missing

def validate_configs(self):
        """
        Check that required config are set.
        :raises :class:`~responsebot.common.exceptions.MissingConfigError`: if a required config is missing
        """
        # Check required arguments, validate values
        for conf in self.REQUIRED_CONFIGS:
            if conf not in self._config:
                raise MissingConfigError('Missing required configuration %s' % conf)