Private
constructorAdds a callback that will be called when a player leaves the world.
This function can't be called in read-only mode.
This function can be called in early-execution mode.
Adds a callback that will be called when a player leaves the world.
This function can't be called in read-only mode.
This function can be called in early-execution mode.
Manages callbacks that are connected to a player leaving the world.