async def get_coin_ids(self, hint: bytes) -> List[bytes32]:
    cursor = (await self.coin_record_db.execute('SELECT * from hints WHERE hint=?', (hint,)))
    rows = (await cursor.fetchall())
    (await cursor.close())
    coin_ids = []
    for row in rows:
        coin_ids.append(row[1])
    return coin_ids
async def get_coin_ids(self, hint: bytes) -> List[bytes32]:
    cursor = (await self.coin_record_db.execute('SELECT * from hints WHERE hint=?', (hint,)))
    rows = (await cursor.fetchall())
    (await cursor.close())
    coin_ids = []
    for row in rows:
        coin_ids.append(row[1])
    return coin_ids