src/vs/workbench/contrib/debug/browser/callStackView.ts/getSessionContextOverlay
function getSessionContextOverlay(session: IDebugSession): [string, any][] {
	return [
		[CONTEXT_CALLSTACK_ITEM_TYPE.key, 'session'],
		[CONTEXT_CALLSTACK_SESSION_IS_ATTACH.key, isSessionAttach(session)],
		[CONTEXT_CALLSTACK_ITEM_STOPPED.key, session.state === State.Stopped],
		[CONTEXT_CALLSTACK_SESSION_HAS_ONE_THREAD.key, session.getAllThreads().length === 1],
	];
}