Customize Timestampedgeojson legend

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I have not see a way to customize the API somehow to be able to add a custom label or container that can hold a part of the date(e.g. Year) as the time-lapse is playing. The year will update from 2017 to 2018 as the visualization is playing.

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Being able to extract the year into its own container on the final time-lapse visualization.

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I did some research into the API and did not see a solution. I am not sure if there is an underlying solution using JavaScript from python.

Additional context

Implementation
folium is maintained by volunteers. Can you help make a PR if we want to implement this feature?

Das Issue nennt keine Dateien, Tests oder Einstiegspunkte. Beginne damit, die Implementierung von TimestampedGeoJson und das daraus generierte JavaScript zu finden, und ermittle anschließend, wie das Datum des Zeitverlaufs der Visualisierung zur Verfügung gestellt wird. Als erledigt gilt die Aufgabe, wenn Benutzer das sich ändernde Jahr in einem separaten benutzerdefinierten Legendencontainer platzieren können.