async function callListTasks() {
    // Construct request
    const request = {
      parent: `projects/${projectId}/locations/${region}/jobs/${jobName}/taskGroups/${groupName}`,
    };

    // Run request
    const iterable = await batchClient.listTasksAsync(request);
    for await (const response of iterable) {
      console.log(response);
    }
  }
The name of the group of tasks. Usually it's `group0`.