Added a short docstring for the highlight function.
@@ -276,6 +276,8 @@ class GeoJson(Layer):
* If str, then data will be passed to the JavaScript as-is.
style_function: function, default None
A function mapping a GeoJson Feature to a style dict.
+ highlight_function: function, default None
+ A function mapping a GeoJson Feature to a style dict for mouse over events.
name : string, default None
The name of the Layer, as it will appear in LayerControls
overlay : bool, default False
