Renovating this code

intern/geom_utils.py

@@ -105,6 +105,10 @@ def speaker_active_time_range(speaker) -> FrameInterval:
 
 
 def speakers_by_min_distance(scene, speakers):
+    """
+    Sorts a list of speaker objects in ascending order by their closest
+    approach to the camera. Objects that approach closest are sorted highest.
+    """
     def min_distance(speaker):
         return closest_approach_to_camera(scene, speaker)[0]