OptionalconcurrencyOptionalcontentContent-filter dictionary fan-out after the lookup. bootstrap (default)
fetches only the first BOOTSTRAP_DICTIONARY_FANOUT_LIMIT dictionaries,
matching how far the 448 capture's bootstrap window gets; all syncs every
advertised dictionary; none skips the chain entirely.
Optional ReadonlypushOptionalscenarioScenario inputs for the bootstrap queries; absent fields keep builder defaults.
Android post-login options.
pushTokenis the FCM/FBNS device token from the platform push SDK. Android push registration is optional: when the token is absent thepush/registerstep is skipped entirely, because we never invent a token.