* 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:
A new super-villainess named White Lightning comes to town, and she uses young men to assist her in her crimes. Bart needs to stop her before she recruits his fellow students into her fold, but for someone as impulsive as Bart, that might mean joining her cause in their place.