* 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:
"Quentin the Vampire"
Dr. Julia Hoffman injects the vampire Barnabas Collins with a blood serum which "only balances [his] system temporarily." She is unaware that her patient's cousin Quentin Collins also suffers from an unspeakable curse. When Quentin transforms into a werewolf in front of Julia, she stabs him with the closest weapon, a hypodermic filled with Barnabas's "blood serum." Now, Quentin becomes a vampire under a full moon!