def METHOD_NAME(self, numkeys, *args):
    if self.version < (7,):
        raise SimpleError(msgs.UNKNOWN_COMMAND_MSG.format("sintercard"))
    if numkeys < 1:
        raise SimpleError(msgs.SYNTAX_ERROR_MSG)
    limit = 0
    if casematch(args[-2], b"limit"):
        limit = Int.decode(args[-1])
        args = args[:-2]
    if numkeys != len(args):
        raise SimpleError(msgs.SYNTAX_ERROR_MSG)
    keys = [
        CommandItem(args[i], self._db, item=self._db.get(args[i], default=None))
        for i in range(numkeys)
    ]
    res = _setop(lambda a, b: a & b, False, None, *keys)
    return len(res) if limit == 0 else min(limit, len(res))