TokenizedSequence / TokenizedSequenceWithOffsets needs to be declared in .py files not only .pyi

bindings/python/tokenizers/__init__.py

@@ -1,5 +1,8 @@
 __version__ = "0.6.0"
 
+from typing import Tuple
+Offsets = Tuple[int, int]
+
 from .tokenizers import Tokenizer, Encoding, AddedToken
 from .tokenizers import decoders
 from .tokenizers import models

bindings/python/tokenizers/models/__init__.py

@@ -1,4 +1,9 @@
-from .. import models
+from typing import List, Tuple
+
+from .. import models, Offsets
+
+TokenizedSequence = List[str]
+TokenizedSequenceWithOffsets = List[Tuple[str, Offsets]]
 
 Model = models.Model
 BPE = models.BPE