If the perceiverOid is non-null, the count returned is the
count of the number of news plus number of frees for the
perceiver as a result of adding elem to the quadtree; else
null
An entrypoint that allows Python code to add a player-specific
property, which is a property that is _not_ sent to any client
except the client running the player with the property.
returns the backing array - not useful to send across network
the backing array encoding format may
not be the same as what you entered and therefore you should
use getBytes instead.
Initialized by the constructor; the maximum distance in
millimeters between players in a positional voice group at
which they can hear each other, adjusted by the
hystericalMargin.