Show map on homepage with template code

I know there is this code to add into a template, but it won’t show the map. Instead, when I add GeoMashup::list_located_posts() it will list all the posts/pages, but I need to know the code to generate the map.

There is a page linked to all the locations, and that page shows the map together with all the locations underneath, but I would also like to show a smaller/cropped version of the map in a location of my homepage.

Any idea what code I should use?

https://wordpress.org/plugins/geo-mashup/