Update feature_extraction_gramt_mono.py

feature_extraction_gramt_mono.py

@@ -8,6 +8,8 @@ from transformers.utils import TensorType
 import torch 
 import torchaudio
 
+from typing import List 
+
 
 
 class MonoFeatureExtractor(SequenceFeatureExtractor):
@@ -102,7 +104,7 @@ class MonoFeatureExtractor(SequenceFeatureExtractor):
 
     def __call__(
         self,
-        raw_speech: Union[np.ndarray, list[float], list[np.ndarray], list[list[float]]],
+        raw_speech: Union[np.ndarray, List[float], List[np.ndarray], List[List[float]]],
         sampling_rate: Optional[int] = None,
         return_tensors: Optional[Union[str, TensorType]] = None,
         normalize : bool = True,