@Override
	public String toString(TimeRadix radix) {
		if (threadKey == -1) {
			return toStringStepPart(radix);
		}
		return String.format("t%d-%s", threadKey, toStringStepPart(radix));
	}
Return the step portion of {@link #toString()}

@param radix the radix
@return the string
Ghidra/Debug/Framework-TraceModeling/src/main/java/ghidra/trace/model/time/schedule/AbstractStep.java