sbool loadFunctions_debug;

static Class loadFunctions(S... functions) {
  ret loadFunctions(asList(functions));
}

static Class loadFunctions(Collection<S> functions) {
  new StringBuilder buf;
  for (S s : asSet(functions))
    buf.append("please include function " + s + ".\n");
  long time = sysNow();
  Class c = veryQuickJava(str(buf));
  if (loadFunctions_debug)
    done2_always(time, "loadFunctions: " + functions);
  ret c;
}