Update OnlineFeature.cc

zhuzizyf

2023-04-22 c5e93cb7cb0399987b53cd031adac7d6042418d1

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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