[pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

packages/jupyter-ai/jupyter_ai/document_loaders/directory.py

@@ -54,7 +54,6 @@ def path_to_doc(path):
 }
 
 
-
 def split_document(document, splitter: TextSplitter) -> List[Document]:
     return splitter.split_documents([document])
 
@@ -83,7 +82,7 @@ def split(path, all_files: bool, splitter):
     for filename in filenames:
         filepath = Path(os.path.join(dir, filename))
         # Lower case everything to make sure file extension comparisons are not case sensitive
-        if filepath.suffix.lower() not in set(j.lower() for j in SUPPORTED_EXTS): 
+        if filepath.suffix.lower() not in {j.lower() for j in SUPPORTED_EXTS}:
             continue
 
         document = dask.delayed(path_to_doc)(filepath)