static record noeq /*mapMethodLike*/ FunctionCall(O function, O... args) implements Transformable {
  toString {
    ret function + "(" + joinWithComma(allToString(args)) + ")";
  }
  
  public bool equals(O o) {
    ret o instanceof FunctionCall
      && eq(function, o/FunctionCall.function)
      && objectArraysEqual(args, o/FunctionCall.args);
  }
  
  public int hashCode() {
    ret hashAboutObjects(function, asList(args));
  }
  
  L args() { ret asList(args); }
  
  public Object transformUsing(IF1 f) {
    ret new FunctionCall(f.get(function), mapObjectArray(f, args));
  }
}