@Override
    public String getDefaultLabel() {
        return LocaleUtils.getLocalizedString("commands.admin.getnumberidleusers.label");
    }
Command that allows to retrieve the number of idle users. Idle users are those that are online, but not active.
Active users are those users that have sent an available presence.

@author Guus der Kinderen, guus@goodbytes.nl
@see <a href="https://xmpp.org/extensions/xep-0133.html#get-idle-users-num">XEP-0133 Service Administration: Get Number of Idle Users</a>
xmppserver/src/main/java/org/jivesoftware/openfire/commands/admin/GetNumberIdleUsers.java