Merge pull request #1040 from alibaba-damo-academy/hnluo-patch-2

hnluo

2023-10-25 8a84ed6a4a6ac6958a480961dc2f1606b1ac7fb6

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from abc import ABC
from abc import abstractmethod
from typing import Iterator
 
 
class AbsIterFactory(ABC):
    @abstractmethod
    def build_iter(self, epoch: int, shuffle: bool = None) -> Iterator:
        raise NotImplementedError