* 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:
Jason Todd takes his final steps to becoming the Red Hood, and his last lessons are about to be learned. Confronting Talia al Ghul and meeting a new player who's calling himself Hush are the tip of the iceberg as Jason readies himself to confront the one who made this all possible--the Joker!