public ProgramDiffFilter getFilter() {
		return new ProgramDiffFilter(pdf);
	}
Returns a new ProgramDiffFilter equal to the one in this program diff.
The filter indicates which types of differences are to be determined.
@return a copy of the program diff filter currently in use.
Ghidra/Features/Base/src/main/java/ghidra/program/util/ProgramDiff.java