Update rwkv_encoder.py

aky15

2024-01-11 c7c97cb0fe91b06dcbc391b5a7dee92d496dc894

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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