From 193d47d829bf89233ee30bf2be9d2529af57afa3 Mon Sep 17 00:00:00 2001
From: hnluo <haoneng.lhn@alibaba-inc.com>
Date: 星期四, 18 五月 2023 19:53:13 +0800
Subject: [PATCH] Merge pull request #527 from alibaba-damo-academy/dev_lhn

---
 funasr/layers/inversible_interface.py |   14 ++++++++++++++
 1 files changed, 14 insertions(+), 0 deletions(-)

diff --git a/funasr/layers/inversible_interface.py b/funasr/layers/inversible_interface.py
new file mode 100644
index 0000000..657ec68
--- /dev/null
+++ b/funasr/layers/inversible_interface.py
@@ -0,0 +1,14 @@
+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
\ No newline at end of file

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