* 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:
Dr. Destiny escapes the twisted halls of Arkham Asylum with his eyes set on recovering the ruby he's used time and again to fight the JLA. Little does he know, the ruby ACTUALLY belongs to Morpheus, and the two are set on a collision course. Guest-starring Mister Miracle and Martian Manhunter.