Optional_Internal — pre-created adapter injected by the boot sequence so
_createInstance() reuses it instead of creating a second one. Typed
unknown to keep this public type boundary decoupled from the adapter
contract; narrowed at the consumption point (map/facade.ts). Absent for
direct GeoLeaf.init() calls.
Optional_Internal — the container element GeoLeaf.mount(el) was handed, so the map is built in
it rather than in the element whose id is mapId. Typed unknown for the same reason
as _adapter; narrowed at the consumption point. Absent for every other call.
Output of
APIInitializationManager._normalizeInitOptions.