private void startTransactions() {
		for (int i = 0; i < programs.length; i++) {
			txIDs[i] = programs[i].startTransaction("TX");
		}
	}
A special test 'program-like' class that allows clients to *easily* make changes one
or more programs.  This is useful for merge tests, which need to setup an environment
that is the same for many different programs.
Ghidra/Features/Base/src/test/java/ghidra/program/database/MergeProgram.java