async def fetchall(self):
        """Fetch all, as per MySQLdb. Pretty useless for large queries, as
        it is buffered.
        """
        rows = []
        while True:
            row = await self.fetchone()
            if row is None:
                break
            rows.append(row)
        return rows
async def fetchall ( self ) : rows = [ ] while True : row = await self . fetchone ( ) if row is None : break rows . append ( row ) return rows
Fetch all, as per MySQLdb. Pretty useless for large queries, as
        it is buffered.