public static Tuple getFirstTuple(String configFile) {
    Tuple tuple = new Tuple();
    try {
      JsonObject jsonObject = readJsonFile(configFile);
      List<JsonObject> clientObjectList =
        (List<JsonObject>)
          throwNoKeyOrBadValueException(jsonObject, "clients", JsonArray.class, false);
      List<JsonObject> testObjectList =
        (List<JsonObject>)
          throwNoKeyOrBadValueException(jsonObject, "tests", JsonArray.class, false);
      int tupleSize = testObjectList.get(0).getInt("tupleSize");
      
      for (JsonObject object : clientObjectList) {
        for (int i = 0; i < tupleSize; i++) {
          Client client = new Client(object);
          client.setClientIndex(i);
          tuple.add(client);
        }
      }
    } catch (Exception e) {
      logger.error(getStackTrace(e));
    }
    return tuple;
  }
Gets the list of Clients from the config file.

@param configFile the kite test config file

@return the list of Tuple from the config file.
KITE-Framework/src/main/java/org/webrtc/kite/Utils.java