code: public function memberCardSummary($from, $to, $condSource = 0)
      {
          $ext = [
              'cond_source' => intval($condSource),
          ];
  
          return $this->query(self::API_MEMBER_CARD_SUMMARY, $from, $to, $ext);
      }
docs: 拉取会员卡数据接口.
  
  @param string $from
  @param string $to
  @param int    $condSource
  
  @return \EasyWeChat\Support\Collection