'This method reads the value from (location_a, location_b)'

@requires_setup
def raw_read(self, location_a, location_b):

    location_a = self._get_real_name(location_a)
    result = self.get(location_a, location_b, check_types=False)
    if (len(result) > 1):
        msg = 'Incorrect    use    of    raw_write/raw_read,    found    %s    results.'
        raise RuntimeError((msg % len(result)))
    elif (len(result) == 0):
        return []
    else:
        return result[0]
