* 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:
Wambua is a young boy living with his mother in Kibera - one of the largest slum in Africa. There are only several private-owned springs of clean water and hundreds of thousands of habitants. One day Wambua's mother twists an ankle and cannot bring the water home anymore. It's time for Wambua to grow up and start the struggle with the harsh real world.