src/DataService/Batch.php
public function ExecuteWithRequestID($requestID)
    {
      if(isset($requestID) && !empty($requestID)){
          $this->sendRequest($requestID);
      }else{
        throw new \Exception("ExecuteWithRequestID called with Empty or Null request ID");
      }

    }
public function ExecuteWithRequestID($requestID)
    {
      if(isset($requestID) && !empty($requestID)){
          $this->sendRequest($requestID);
      }else{
        throw new \Exception("ExecuteWithRequestID called with Empty or Null request ID");
      }

    }
Use this function to do Batch Request instead of Execute()