// check preconditions of the address token
final Map<String, Integer> requiredStatements = address.getRequiredStatements();
// any value expression key becomes a precondition matched against the statement context
setPrecondition(new Precondition() {
@Override
public boolean isMet(StatementContext statementContext) {
// fail fast if not scope active
if(!getRuntimeAPI().isActive(unit.getId())) return false;