public Iterator<VarnodeAST> getVarnodes(int sz, Address addr) {
		return vbank.locRange(sz, addr);
	}
return all Varnodes of a given size that start at a given Address
@param sz -- Size of Varnodes
@param addr -- Starting Address of Varnodes
@return -- Iterator to Varnodes
Ghidra/Framework/SoftwareModeling/src/main/java/ghidra/program/model/pcode/PcodeSyntaxTree.java