Merge pull request #421 from alibaba-damo-academy/hnluo-patch-1

zhifu gao

2023-04-25 72372f44a14f5ca311fe50873056fa91497f451e

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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