private Reference getSingleFlowReferenceFrom(Instruction instr) {
		Reference ref = null;
		int flowCnt = 0;
		for (Reference refFrom : instr.getReferencesFrom()) {
			if (!refFrom.isMemoryReference() || !refFrom.getReferenceType().isFlow()) {
				continue;
			}
			if (++flowCnt > 1) {
				return null; // only change if single flow
			}
			ref = refFrom;
		}
		return ref;
	}
Constructor
@param set set of addresses over which destination functions will be
examined for Jump reference to those functions.
@param assumeContiguousFunctions if true it will be assumed that any unconditional
jump over another function will trigger a call-return override and the creation of
@param considerConditionalBranches if true conditional jumps can also be considered for jumping
to another function as a shared return.
a function at the destination.
Ghidra/Features/Base/src/main/java/ghidra/app/cmd/analysis/SharedReturnAnalysisCmd.java