Gets the nearest user.
Reference position.
Nearest user, or null when no user exists.
Gets information for a specific user.
User ID.
User avatar information, or undefined when the user does not exist.
Gets the current user count.
Number of users.
Gets users within the specified range.
Center position.
Radius.
Array of user avatar information within the range.
Unregisters an event handler.
Event name.
Event handler.
Registers an event handler.
Event name.
Event handler.
User avatar management interface.