public testOptionalElements() {
     this.optionRepeatedIntField = new List<testOptionalElementsOptionRepeatedInt>();
     this.optionalStringField = new testOptionalElementsOptionalString();
     this.optionalIntField = new testOptionalElementsOptionalInt();
 }
 public testOptionalElements()
 {
     this.optionRepeatedIntField = new List <testOptionalElementsOptionRepeatedInt>();
     this.optionalStringField    = new testOptionalElementsOptionalString();
     this.optionalIntField       = new testOptionalElementsOptionalInt();
 }