* Client-Side Metrics Include
* Wiki: https://tiny.amazon.com/cpso0wg6
* Needs to be included at the top of pages because it tracks latency--
* ue_t0 needs to be as close to body load as possible.
* - ue.tag maps to URLType dimension of OnlineQueryLog in PMET. Because we cannot add
* custome data to other dimensions in PMET through CSM, we are replicating it thrice to
* cover each store, page type, and the intersections of the two.
* - Whitelists are listed in the usage guide:
Balthazar faces Baal in a deadly confrontation from which only one can emerge alive, while Thermidor falls around them. Terrible, inutterable truths are discovered which scatter the surviving characters to the winds, buffeted about by forces beyond their control, their fates changed forever!