Merge pull request #406 from alibaba-damo-academy/main

yhliang

2023-04-23 a8a849ce0556951cc8fb6b0a06ab6391c23e25e7

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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