@Override
	public void buildResponseTemplate() {
		if (response == null) {
			response = optionalresponse = new ResponseOptionalExist();
		}
	}
Query whether an optional table exists. If it doesn't exist it can be created.
If it exists, it can be cleared
Ghidra/Features/BSim/src/main/java/ghidra/features/bsim/query/protocol/QueryOptionalExist.java