code: public function batchTagUsers(array $openIds, $tagId)
      {
          $params = [
                     'openid_list' => $openIds,
                     'tagid' => $tagId,
                    ];
  
          return $this->parseJSON('json', [self::API_MEMBER_BATCH_TAG, $params]);
      }
docs: Batch tag users.
  
  @param array $openIds
  @param int   $tagId
  
  @return \EasyWeChat\Support\Collection