Get the viewport or axis coordinates in go.Scattermapbox with dash

I am trying to extract the corner coordinates of the viewport of Scattermapbox in a dash app.
Only the center of the image is available and the zoom as far as I know, do you have any information on how to convert this into corner coordinates?
Seems like an important feature to:
1 plot the axis with coordinates and not weird numbers (or a grid)
2 scale layers of the map correctly
Thanks in advance

In case someone is looking for the information this is accessible through relayoutData of the figure