def loadFromXML(xmlRoot, namespace, version):
if version == "0.1":
varId = xmlRoot.get("id")
varName = xmlRoot.get("name")
children = []
for xmlChildren in xmlRoot.findall("{" + namespace + "}variable"):
child = Variable.loadFromXML(xmlChildren, namespace, version)
children.append(child)
return AggregateVariable(varId, varName, children)
return None
