docs: public ListTablesResponse listTables(ListTablesRequest request) {
          checkNotNull(request, "request should not be null.");
          InternalRequest httpRequest = createRequestUnderInstance(HttpMethodName.GET,
                  MolaDbConstants.URI_TABLE);
          ListTablesResponse ret = this.invokeHttpClient(httpRequest, ListTablesResponse.class);
          return ret;
      }