ReadonlyappApp process start (epoch ms).
Optional ReadonlycurrentWhen the current screen came to front, from NavigationWire.currentResumedAtMs; the request clock when absent.
Optional ReadonlyextendedThe app build's key set: the 451 build adds the app-session and
container-module block (the profile's MobileApplication.launchWire).
Absent leaves the 448 key set.
ReadonlyforegroundCurrent foreground-session start (epoch ms); the first request after it reports the elapsed time.
Readonlyrequestclient_recorded_request_time_ms as a number.
Optional ReadonlysurfaceAnalytics module of the surface this request belongs to. The feed surfaces
report the surface they are loading (FEED_SURFACE_MODULE), which the app
records in its session navigation trail before the client-endpoint screen
flips; it is a property of the request, not the screen in front.
Everything the
session_level_signalsblob needs: the request clock and the app/session navigation state.