@Override
			public void modifyPrivate(ProgramDB program) throws Exception {
				removeFunction(program, "0x1002a91");
				Function func = getFunction(program, "0x1002b44");
				func.setReturnType(new ByteDataType(), SourceType.ANALYSIS);

				removeFunction(program, "0x1002b7d");
				func = getFunction(program, "0x1002c93");
				func.setReturnType(new ByteDataType(), SourceType.ANALYSIS);
			}
Test the merge of the versioned program's listing.
Ghidra/Features/Base/src/test.slow/java/ghidra/app/merge/listing/FunctionMergeManagerTest.java