docs: private static void generateProtobufDefinedForField(StringBuilder code, Field field, Set<String> enumNames) {
          code.append("@").append(Protobuf.class.getSimpleName()).append("(");
  
          String fieldType = fieldTypeMapping.get(field.getType());
          if (fieldType == null) {
              if (enumNames.contains(field.getType())) {
                  fieldType = "FieldType.ENUM";
              } else {
                  fieldType = "FieldType.OBJECT";
              }
          }
  
          code.append("fieldType=").append(fieldType);
          code.append(", order=").append(field.getTag());
          if (Label.OPTIONAL == field.getLabel()) {
              code.append(", required=false");
          } else if (Label.REQUIRED == field.getLabel()) {
              code.append(", required=true");
          }
          code.append(")\n");
  
      }