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

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

mesa/experimental/components/altair.py

@@ -49,7 +49,9 @@ def portray(g):
         encoding_dict["size"] = alt.Size("size", type="quantitative")
 
     chart = (
-        alt.Chart(alt.Data(values=all_agent_data), encoding=alt.Encoding(**encoding_dict))
+        alt.Chart(
+            alt.Data(values=all_agent_data), encoding=alt.Encoding(**encoding_dict)
+        )
         .mark_point(filled=True)
         .properties(width=space.width * 15, height=space.height * 15)
         # .configure_view(strokeOpacity=0)  # hide grid/chart lines