* 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:
An unknown predator begins outdoing Batman, taking down dangerous threats with military precision. It's up to the Dark Knight and series costar Batwoman to rally and train the young heroes of Gotham City to end this mysterious threat!
WHAT NOW: Batman and Batwoman begin training Spoiler, Red Robin and Cassandra Cain, but is the villainous Clayface ready for redemption?