Folium is a Python library installed in all EarthAI Notebook instances.
Folium allows users to visualize their geospatial datasets on slippy maps (similar to ipyleaflet). The following is an excerpt from Folium's documentation describing what this library does:
Folium builds on the data wrangling strengths of the Python ecosystem and the mapping strengths of the leaftlet.js library. Manipulate your data in Python, then visualize it in on a Leaflet map via folium.
Follow this link to view Folium documentation.