* 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:
A new villain enters the scene with the ability to read minds, which is a problem in a town where the heroes wear cowls to mask their secret identities. A top-secret super-powered black-ops organization has its eyes on Batgirl, and they're sending in their best to do the job. But is the job to recruit her or to take her out?