Merge branch 'alibaba-damo-academy:main' into main

veelion

2023-03-24 7687f64729810ce0ffd0b5a38276ebbf75da43eb

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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