diff --git a/arcaflow_plugin_opensearch/opensearch_plugin.py b/arcaflow_plugin_opensearch/opensearch_plugin.py
index f6578dd..a0a9c32 100644
--- a/arcaflow_plugin_opensearch/opensearch_plugin.py
+++ b/arcaflow_plugin_opensearch/opensearch_plugin.py
@@ -21,9 +21,7 @@ def convert_to_supported_type(value) -> typing.Dict:
     elif type_of_val == dict:
         result = {}
         for k in value:
-            result[convert_to_supported_type(k)] = convert_to_supported_type(
-                value[k]
-            )
+            result[convert_to_supported_type(k)] = convert_to_supported_type(value[k])
         return result
     elif type_of_val in (float, int, str, bool):
         return value
@@ -33,6 +31,7 @@ def convert_to_supported_type(value) -> typing.Dict:
         print("Unknown type", type_of_val, "with val", str(value))
         return str(value)
 
+
 def convert_to_homogenous_list(input_list: list):
     # To make all types in list homogeneous, we upconvert them
     # to the least commom type.
@@ -49,6 +48,7 @@ def convert_to_homogenous_list(input_list: list):
             list_type = int()
     return list(map(type(list_type), input_list))
 
+
 @plugin.step(
     id="opensearch",
     name="OpenSearch",
diff --git a/tests/unit/test_arcaflow_plugin_opensearch.py b/tests/unit/test_arcaflow_plugin_opensearch.py
index 5bc21f9..5150d37 100644
--- a/tests/unit/test_arcaflow_plugin_opensearch.py
+++ b/tests/unit/test_arcaflow_plugin_opensearch.py
@@ -33,7 +33,7 @@ def test_serialization():
                 " 'mapper_parsing_exception','failed to parse')"
             )
         )
-    
+
     def test_convert_to_homogeneous_list(self):
         test_cases = [
             ["a", "b", "c"],  # all str
@@ -73,6 +73,5 @@ def validate_list_items_homogeous_type(t, input_list):
         t.assertEqual(type(item), expected_type)
 
 
-
 if __name__ == "__main__":
     unittest.main()