Merge pull request #44 from fangd123/dev

zhifu gao

2023-01-26 96d637a58be9f9a263e8cb8a2dd7a782c0d3dfd2

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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