public Map<K, V> getCompletedMap() {
		return unmodifiable;
	}
Get a view of completed keys with values

<p>
The view is unmodifiable, but the backing map may still be modified as more keys are
completed. Thus, access to the view ought to be synchronized on this lazy map.

@return a map view of keys to values
Ghidra/Framework/Generic/src/main/java/ghidra/async/AsyncLazyMap.java