@Override
	public T firstValue() {
		return delegateFirst(memSpacesView, m -> m.firstValue());
	}
{@inheritDoc}

Note this counts entries in memory spaces only. No register spaces are included.
Ghidra/Debug/Framework-TraceModeling/src/main/java/ghidra/trace/database/map/DBTraceAddressSnapRangePropertyMap.java