async def METHOD_NAME(self, db_version):
    async with DBConnection(db_version) as db_wrapper:
        hint_store = await HintStore.create(db_wrapper)
        count = await hint_store.count_hints()
        assert count == 0
        # Add some hint data then test again
        hint_0 = 32 * b"\0"
        hint_1 = 32 * b"\1"
        coin_id_0 = 32 * b"\4"
        coin_id_1 = 32 * b"\5"
        hints = [(coin_id_0, hint_0), (coin_id_1, hint_1)]
        await hint_store.add_hints(hints)
        count = await hint_store.count_hints()
        assert count == 2