docs: final JsMsgMap getOtherUserPropertyMap() {
          if (otherUserPropertyMap == null) {
              List<String> keys = (List<String>) getApi().getField(JsApiAccess.OTHERPROPERTY_NAME);
              List<Object> values = (List<Object>) getApi().getField(JsApiAccess.OTHERPROPERTY_VALUE);
              otherUserPropertyMap = new JsMsgMap(keys, values);
          }
          return otherUserPropertyMap;
      }