update readme

huangmingming

2023-03-16 6866a649162b90b49d64c6ec264f2fdbd1309c91

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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