def fetchone(self):
        """
        Fetch the next row of a query result set, returning a single sequence,
        or None when no more data is available.
        Alias for ``next()``.
        """
        try:
            return self.next()
        except __HOLE__:
            return None
dataset/ETHPy150Open crate/crate-python/src/crate/client/cursor.py/Cursor.fetchone