fix english hotwards bug

haoneng.lhn

2023-06-21 6a3d31dc552d0e476af15595745b06b9928bbbff

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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