Returns a list of users that are scheduled on. If no users are scheduled, it will return an empty list.
This scripting function has no Client Permission restrictions.
String userSource - The name of the user source to check for scheduled users.
Date date - The date to check schedules for. May be a Java Date or Unix Time in ms.. If omitted, the current date and time will be used. [optional]
List - List of all Users scheduled for the given date, taking schedule adjustments into account.