public long getLastThreadKey() {
		long last = pSteps.getLastThreadKey();
		if (last != -1) {
			return last;
		}
		return steps.getLastThreadKey();
	}
Get the last thread key stepped by this schedule

@return the thread key
Ghidra/Debug/Framework-TraceModeling/src/main/java/ghidra/trace/model/time/schedule/TraceSchedule.java