官方文档:https://developer.work.weixin.qq.com/document/path/90210
// 创建标签
$app->tag->create($tagName, $tagId);
// 更新标签名字
$app->tag->update($tagId, $tagName);
// 删除标签
$app->tag->delete($tagId);
// 获取标签列表
$app->tag->list();
// 获取标签成员
$app->tag->get($tagId);
// 增加标签成员
$app->tag->tagUsers($tagId, [$userId1, $userId2, ...]);
// 指定部门
$app->tag->tagDepartments($tagId, [$departmentId1, $departmentId2, ...]);
// 删除标签成员
$app->tag->untagUsers($tagId, [$userId1, $userId2, ...]);
// 指定部门
$app->tag->untagDepartments($tagId, [$departmentId1, $departmentId2, ...]);