Merge pull request #454 from zhuzizyf/main

zhifu gao

2023-05-05 d6ccb437bc85da56f8354fc9b11c8986b4603ac4

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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