Objects (Dart and Flutter objects) in the heap.

Memory that isn’t in the Dart/Flutter heap
but is still part of the total memory footprint.
Objects in this memory would be native objects
(for example, from reading a file into memory,
or a decoded image). The native objects are exposed
to the Dart VM from the native OS (such as Android,
Linux, Windows, iOS) using a Dart embedder.
The embedder creates a Dart wrapper with a finalizer,
allowing Dart code to communicate with these native resources.
Flutter has an embedder for Android and iOS.
For more information, see Command-line and server apps,
Dart on the server with Dart Frog,
Custom Flutter Engine Embedders,
Dart web server deployment with Heroku.

The timestamps of all collected memory statistics
and events at a particular point in time (timestamp).