fix black

Author: hoh

src/aleph/sdk/utils.py

@@ -87,7 +87,7 @@ def enum_as_str(obj: Union[str, Enum]) -> str:
     """
     if not isinstance(obj, str):
         raise TypeError(f"Unsupported enum type: {type(obj)}")
-    
+
     if isinstance(obj, Enum):
         return obj.value