public boolean isUniqueStorage() {
		if (varnodes == null || varnodes.length == 0) {
			return false;
		}
		Address storageAddr = varnodes[0].getAddress();
		return storageAddr.isUniqueAddress();
	}
@return true if storage consists of a single unique-space varnode which is used during
function analysis.  This type of storage is not suitable for database-stored function
variables.  This type of storage must be properly converted to Hash storage when 
storing unique function variables.
Ghidra/Framework/SoftwareModeling/src/main/java/ghidra/program/model/listing/VariableStorage.java