From 3039ae315ce23575e7f5b10904ac23df20499e56 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E5=98=89=E6=B8=8A?= <wangjiaming.wjm@alibaba-inc.com>
Date: Mon, 24 Apr 2023 15:12:42 +0800
Subject: [PATCH] update

---
 funasr/layers/inversible_interface.py | 14 ++++++++++++++
 1 file changed, 14 insertions(+)
 create mode 100644 funasr/layers/inversible_interface.py

diff --git a/funasr/layers/inversible_interface.py b/funasr/layers/inversible_interface.py
new file mode 100644
index 000000000..657ec6800
--- /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