* 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:
Malpractice takes on a whole new meaning when some unscrupulous doctors go in for the worst kind of operation at the shaky hands of the Spectre! Plus, Beware the Architects, cosmic puppetmasters whose elusiveness is exceeded only by their apparent capriciousness.