3D polylines integration

Hello,

I have looked at the api documentation for a long time and I have looked at the example codes of mapbox maps flutter, and I have not found any way to add 3D polylines.
I am not a professional developer and therefore I may have missed something, but I am almost certain it is not yet possible to do this.
As I am integrating flight paths in my app, I absolutely need this feature.

I have found out that Point Annotation manager has a possibility to Offset in the Z direction, and also the Polyline Annotation Manager but it Offsets all the polyline and I would need to add altitude to each point individually.
The Polyline Annotation Manager takes the Polyline Annotation Options, which has geometry that takes a Line String with coordinates that takes a list of Positions. Position has the ability to take a 3rd argument which is the altitude, but when adding the altitude, the created Polyline has only 2 items instead of 3 in each Position's point. These 2 items are the latitude and altitude.... instead of longitude and latitude, and potentially the altitude in a 3rd item but that is not working currently.

Hope there is a solution for that, or that you will be able to add this in a short time.

Thank you in advance!

Start with the API documentation and mapbox_maps_flutter examples, then inspect the Polyline Annotation Manager, Polyline Annotation Options, LineString, and Position handling described in the issue. Confirm how altitude is represented for each point and define completion as supporting 3D flight-path polylines with longitude, latitude, and altitude preserved per coordinate.