@classmethod
def _ovalcheck(location, oval_id):
    """
        Perform an OVAL check.

        :param string location: URI of an OVAL definitions file
        :param string oval_id: OVAL definition ID
        :rtype: boolean
        :exception: NotImplementedError - Method not implemented
        """
    errmsg = 'Method not implemented'
    raise NotImplementedError(errmsg)
