Merge pull request #145 from alibaba-damo-academy/dev_lzr

zhifu gao

2023-02-21 beb3d3fcbca7071d31af3c69b761a5a2fa7da950

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from abc import ABC
from abc import abstractmethod
from typing import Tuple
 
import torch
 
 
class InversibleInterface(ABC):
    @abstractmethod
    def inverse(
        self, input: torch.Tensor, input_lengths: torch.Tensor = None
    ) -> Tuple[torch.Tensor, torch.Tensor]:
        # return output, output_lengths
        raise NotImplementedError