public function get($instanceName, $hash, $sizeBytes, $optParams = array())
  {
    $params = array('instanceName' => $instanceName, 'hash' => $hash, 'sizeBytes' => $sizeBytes);
    $params = array_merge($params, $optParams);
    return $this->call('get', array($params), "Google_Service_RemoteBuildExecution_BuildBazelRemoteExecutionV2ActionResult");
  }