* 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:
ZERO is named for its main character, secret agent Edward Zero, a sociopath who solves problems with violence, a perfect execution machine. He's built his life around certain principles, but ZERO is the story of what happens when his carefully maintained systems break down and Zero must fight not just a war out in the world but one within himself as well.