DiffLines getValidatedLines() {
		if (!isDone()) {
			throw new AssertException("Cannot get validated lines before validation is finished");
		}

		return new DiffLines(input, myLines);
	}
A class that knows how to traverse a set a lines that are being used to generate a diff.
Ghidra/Features/Base/src/main/java/ghidra/app/util/html/diff/DiffLinesValidator.java