#foreach ( $field in $allFields )
        builder = (${class.name}.Builder) transform${field.modelClass.name}_${Helper.capitalise($field.name)}(creator, builder, target);
    #end
        return builder != null ? builder.build() : target;
    }

    #foreach ( $field in $allFields )
      #set ( $capField = ${Helper.capitalise($field.name)} )

            return key;
        }
        String keyStr = key.toString();
        if (keyStr.indexOf('_') < 0) {
            keyStr = CaseFormat.LOWER_CAMEL.to(CaseFormat.LOWER_UNDERSCORE, StringUtils.uncapitalize(keyStr));
        } else {
            keyStr = CaseFormat.LOWER_UNDERSCORE.to(CaseFormat.LOWER_CAMEL, keyStr);
        }
        return keyStr;
    }

    @Override
    public int size() {