globalProperties property
Initial global properties attached to every event from the very first launch.
Applied natively during Openpanel.initialize — before the automatic
cold-start app_opened is collected — so even the first event of a
fresh install carries them (a post-initialization
Openpanel.setGlobalProperties call cannot: the cold-start event is
already enqueued by then).
The values land in the same persistent store Openpanel.setGlobalProperties
uses with the same merge semantics (a null value removes the key):
later setGlobalProperties calls merge on top for the keys they touch
and never wipe the rest. clear() wipes them along with the store.
Implementation
final Map<String, Object?>? globalProperties;