Merge pull request #216 from alibaba-damo-academy/dev_lhn

hnluo

2023-03-13 2b1f8a1b23877a7135b27acad0544e7df0319cbb

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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