Cones in Cesium

Dear Cesium experts
Continuing a precedent post about our time-space cartography project.
As a starting point we have a csv file of cities.
We intend to have a python script to produce cones in CZML file via CZML Python library
We need dynamic cones
but can Cesium read a CZML file with cone objects?
or do we need to use agi/conic sensors?
Thanks for helping
Alain & Thomas

Hello maybe you could use CylinderGraphics :
with bottom or top radius at 0?