diff --git a/convert-hf-to-gguf.py b/convert-hf-to-gguf.py
index ffdba7444..e72b1ee2a 100755
--- a/convert-hf-to-gguf.py
+++ b/convert-hf-to-gguf.py
@@ -28,6 +28,9 @@ from convert import HfVocab
 
 ###### MODEL DEFINITIONS ######
 
+AnyModel = TypeVar("AnyModel", bound="type[Model]")
+
+
 class SentencePieceTokenTypes(IntEnum):
     NORMAL = 1
     UNKNOWN = 2
@@ -36,7 +39,6 @@ class SentencePieceTokenTypes(IntEnum):
     UNUSED = 5
     BYTE = 6
 
-AnyModel = TypeVar("AnyModel", bound="type[Model]")
 
 class Model(ABC):
     _model_classes: dict[str, type[Model]] = {}
@@ -187,10 +189,12 @@ class Model(ABC):
     @classmethod
     def register(cls, *names: str) -> Callable[[AnyModel], AnyModel]:
         assert names
+
         def func(modelcls: type[Model]):
             for name in names:
                 cls._model_classes[name] = modelcls
             return modelcls
+
         return func
 
     @classmethod