Merge pull request #856 from alibaba-damo-academy/dev_wjm_tmp

hnluo

2023-08-15 f4affb7b2438897a7f0ef270c789ce2f3c510b8a

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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