* 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:
Joe Hill's New York Times Bestselling novel, NOS4A2, introduced readers to the terrifying funhouse world of Christmasland, and the mad man who rules there: Charlie Talent Manx III. Now, in an original new comic miniseries, Hill throws wide the candy cane gates to tell a standalone story that is at once both accessible to new readers, and sure to delight fans of the book.