* 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:
Trapped in Oz and hunted by the armies of the fallen Wicked Witch of the East, Dorothy finds allies in Glinda, the good witch of Oz and the lion Thorne. Together they embark on a quest for the veridian scepter, an artifact that can both free Oz from the tyranny of the Wicked Witch, and also send Dorothy home. All that stands in their way is the Wicked Witch of the West and her army of deadly warriors, flying monkeys and demon dogs.