diff --git a/onnxslim/argparser.py b/onnxslim/argparser.py
index bddc25e..be0c49e 100644
--- a/onnxslim/argparser.py
+++ b/onnxslim/argparser.py
@@ -1,19 +1,18 @@
-import sys
 import argparse
-from argparse import ArgumentParser, ArgumentDefaultsHelpFormatter
 import dataclasses
+from argparse import ArgumentDefaultsHelpFormatter, ArgumentParser
 from dataclasses import dataclass, field
-from typing import List, Optional, Type
+from typing import List, Optional, Type, Union, get_args, get_origin
 
 import onnxslim
 
-from typing import Union, List, Optional, get_origin, get_args
 
 def _get_inner_type(arg_type):
     if get_origin(arg_type) is Union:
         return next((t for t in get_args(arg_type) if t is not type(None)), str)
     return arg_type
 
+
 @dataclass
 class ModelArguments:
     """
diff --git a/onnxslim/cli/_main.py b/onnxslim/cli/_main.py
index f02460f..79fbe3a 100644
--- a/onnxslim/cli/_main.py
+++ b/onnxslim/cli/_main.py
@@ -123,14 +123,16 @@ def slim(model: Union[str, onnx.ModelProto], *args, **kwargs):
 def main():
     """Entry point for the OnnxSlim toolkit, processes command-line arguments and passes them to the slim function."""
     from onnxslim.argparser import (
-        OnnxSlimArgumentParser,
         CheckerArguments,
         ModelArguments,
         ModificationArguments,
+        OnnxSlimArgumentParser,
         OptimizationArguments,
     )
 
-    argument_parser = OnnxSlimArgumentParser(ModelArguments, OptimizationArguments, ModificationArguments, CheckerArguments)
+    argument_parser = OnnxSlimArgumentParser(
+        ModelArguments, OptimizationArguments, ModificationArguments, CheckerArguments
+    )
     model_args, optimization_args, modification_args, checker_args = argument_parser.parse_args_into_dataclasses()
 
     if checker_args.inspect and model_args.output_model:
diff --git a/onnxslim/third_party/onnx_graphsurgeon/importers/onnx_importer.py b/onnxslim/third_party/onnx_graphsurgeon/importers/onnx_importer.py
index b05c055..723f270 100644
--- a/onnxslim/third_party/onnx_graphsurgeon/importers/onnx_importer.py
+++ b/onnxslim/third_party/onnx_graphsurgeon/importers/onnx_importer.py
@@ -551,5 +551,5 @@ def import_onnx(onnx_model: "onnx.ModelProto") -> Graph:
         producer_name=onnx_model.producer_name,
         producer_version=onnx_model.producer_version,
         functions=functions,
-        metadata_props=onnx_model.metadata_props
+        metadata_props=onnx_model.metadata_props,
     )